CACNA1S
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Also known as Cav1.1hypoPP
Summary
CACNA1S (calcium voltage-gated channel subunit alpha1 S, HGNC:1397) is a protein-coding gene on chromosome 1q32.1, encoding Voltage-dependent L-type calcium channel subunit alpha-1S (Q13698). Pore-forming, alpha-1S subunit of the voltage-gated calcium channel that gives rise to L-type calcium currents in skeletal muscle.
This gene encodes one of the five subunits of the slowly inactivating L-type voltage-dependent calcium channel in skeletal muscle cells. Mutations in this gene have been associated with hypokalemic periodic paralysis, thyrotoxic periodic paralysis and malignant hyperthermia susceptibility.
Source: NCBI Gene 779 — RefSeq curated summary.
At a glance
- Gene–disease (curated): hypokalemic periodic paralysis, type 1 (Strong, GenCC) — +4 more curated relationships
- GWAS associations: 29
- Clinical variants (ClinVar): 3,508 total — 73 pathogenic, 48 likely-pathogenic
- Phenotypes (HPO): 95
- Druggable target: yes — 48 molecules with ChEMBL bioactivity
- MANE Select transcript:
NM_000069
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:1397 |
| Approved symbol | CACNA1S |
| Name | calcium voltage-gated channel subunit alpha1 S |
| Location | 1q32.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | Cav1.1, hypoPP |
| Ensembl gene | ENSG00000081248 |
| Ensembl biotype | protein_coding |
| OMIM | 114208 |
| Entrez | 779 |
Gene structure
Transcript identifiers
Ensembl transcripts: 9 — 5 nonsense_mediated_decay, 3 protein_coding, 1 retained_intron
ENST00000362061, ENST00000367338, ENST00000679417, ENST00000680051, ENST00000680059, ENST00000681078, ENST00000681190, ENST00000681874, ENST00000713699
RefSeq mRNA: 1 — MANE Select: NM_000069
NM_000069
CCDS: CCDS1407
Canonical transcript exons
ENST00000362061 — 44 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000522341 | 201050389 | 201050516 |
| ENSE00000791228 | 201044328 | 201044456 |
| ENSE00000914678 | 201043281 | 201043531 |
| ENSE00000914688 | 201047115 | 201047239 |
| ENSE00000914730 | 201050984 | 201051143 |
| ENSE00001667889 | 201048582 | 201048684 |
| ENSE00001724912 | 201049003 | 201049099 |
| ENSE00001772983 | 201047525 | 201047626 |
| ENSE00004020754 | 201052557 | 201052648 |
| ENSE00004020755 | 201066229 | 201066316 |
| ENSE00004020756 | 201112188 | 201112426 |
| ENSE00004020757 | 201072755 | 201072824 |
| ENSE00004020758 | 201084950 | 201085031 |
| ENSE00004020759 | 201040231 | 201040374 |
| ENSE00004020760 | 201059189 | 201059299 |
| ENSE00004020761 | 201062462 | 201062514 |
| ENSE00004020762 | 201070272 | 201070404 |
| ENSE00004020763 | 201065838 | 201065945 |
| ENSE00004020764 | 201110164 | 201110269 |
| ENSE00004020765 | 201089258 | 201089463 |
| ENSE00004020766 | 201085436 | 201085581 |
| ENSE00004020767 | 201061944 | 201062090 |
| ENSE00004020768 | 201091640 | 201091792 |
| ENSE00004020769 | 201060658 | 201060816 |
| ENSE00004020770 | 201054505 | 201054561 |
| ENSE00004020771 | 201053459 | 201053587 |
| ENSE00004020772 | 201053209 | 201053274 |
| ENSE00004020773 | 201058408 | 201058491 |
| ENSE00004020774 | 201061267 | 201061468 |
| ENSE00004020775 | 201093882 | 201094021 |
| ENSE00004020776 | 201040622 | 201040713 |
| ENSE00004020777 | 201069472 | 201069601 |
| ENSE00004020778 | 201073549 | 201073642 |
| ENSE00004020779 | 201074506 | 201074620 |
| ENSE00004020780 | 201039512 | 201040082 |
| ENSE00004020781 | 201076920 | 201077127 |
| ENSE00004020782 | 201083162 | 201083322 |
| ENSE00004020783 | 201069137 | 201069196 |
| ENSE00004020784 | 201066887 | 201066993 |
| ENSE00004020785 | 201091972 | 201092114 |
| ENSE00004020786 | 201041504 | 201041589 |
| ENSE00004020787 | 201075495 | 201075615 |
| ENSE00004020788 | 201087826 | 201087929 |
| ENSE00004020789 | 201077879 | 201078104 |
Expression profiles
Bgee: expression breadth ubiquitous, 105 present calls, max score 98.18.
FANTOM5 (CAGE): breadth tissue_specific, TPM avg 0.2435 / max 71.8424, expressed in 52 samples.
FANTOM5 promoters (2 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 16602 | 0.2190 | 44 |
| 16603 | 0.0244 | 13 |
Top tissues by expression
268 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| gluteal muscle | UBERON:0002000 | 98.18 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 98.13 | gold quality |
| triceps brachii | UBERON:0001509 | 97.94 | gold quality |
| vastus lateralis | UBERON:0001379 | 97.73 | gold quality |
| skeletal muscle tissue of rectus abdominis | UBERON:0004511 | 97.51 | gold quality |
| quadriceps femoris | UBERON:0001377 | 97.37 | gold quality |
| diaphragm | UBERON:0001103 | 97.33 | gold quality |
| skeletal muscle tissue of biceps brachii | UBERON:0004502 | 97.30 | gold quality |
| biceps brachii | UBERON:0001507 | 97.20 | gold quality |
| skeletal muscle tissue | UBERON:0001134 | 96.92 | gold quality |
| gastrocnemius | UBERON:0001388 | 96.07 | gold quality |
| muscle organ | UBERON:0001630 | 95.09 | gold quality |
| muscle of leg | UBERON:0001383 | 94.25 | gold quality |
| deltoid | UBERON:0001476 | 94.18 | gold quality |
| tibialis anterior | UBERON:0001385 | 93.72 | silver quality |
| muscle tissue | UBERON:0002385 | 90.46 | gold quality |
| body of tongue | UBERON:0011876 | 85.68 | gold quality |
| pancreatic ductal cell | CL:0002079 | 83.95 | silver quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 79.37 | gold quality |
| tongue | UBERON:0001723 | 79.08 | gold quality |
| type B pancreatic cell | CL:0000169 | 74.38 | gold quality |
| olfactory bulb | UBERON:0002264 | 74.28 | gold quality |
| trabecular bone tissue | UBERON:0002483 | 72.91 | gold quality |
| superior surface of tongue | UBERON:0007371 | 72.60 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 72.23 | gold quality |
| myocardium | UBERON:0002349 | 70.60 | gold quality |
| cardiac muscle of right atrium | UBERON:0003379 | 68.16 | gold quality |
| left ventricle myocardium | UBERON:0006566 | 67.93 | gold quality |
| synovial joint | UBERON:0002217 | 67.91 | gold quality |
| orbitofrontal cortex | UBERON:0004167 | 67.69 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 4.40 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): CREB1, GATA2
miRNA regulators (miRDB)
18 targeting CACNA1S, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-4510 | 100.00 | 66.60 | 2050 |
| HSA-MIR-6127 | 100.00 | 66.76 | 2188 |
| HSA-MIR-6129 | 100.00 | 66.46 | 2080 |
| HSA-MIR-6130 | 100.00 | 66.69 | 2012 |
| HSA-MIR-6133 | 100.00 | 66.48 | 2064 |
| HSA-MIR-4650-5P | 99.98 | 64.69 | 999 |
| HSA-MIR-8075 | 99.97 | 67.20 | 962 |
| HSA-MIR-4267 | 99.96 | 66.53 | 2368 |
| HSA-MIR-1321 | 99.84 | 65.30 | 1811 |
| HSA-MIR-4739 | 99.84 | 65.25 | 1832 |
| HSA-MIR-4756-5P | 99.84 | 64.98 | 1809 |
| HSA-MIR-6134 | 99.63 | 65.68 | 1537 |
| HSA-MIR-4254 | 99.11 | 65.15 | 1315 |
| HSA-MIR-513B-3P | 98.76 | 68.12 | 1577 |
| HSA-MIR-423-5P | 98.69 | 67.48 | 1522 |
| HSA-MIR-3184-5P | 98.56 | 67.13 | 1491 |
| HSA-MIR-6781-3P | 97.44 | 66.85 | 970 |
| HSA-MIR-3116 | 97.07 | 65.78 | 1324 |
Literature-anchored findings (GeneRIF, showing 40)
- polymorphisms in the CACNA1S gene is associated with Malignant Hyperthermia (PMID:12636044)
- a mutation of the CACNA1S gene may have a role in hypokalemic periodic paralysis (PMID:15716625)
- a novel Arg528Gly mutation in the CACNA1S gene that causes Hypokalemic periodic paralysis in a Chinese family (PMID:15726306)
- We propose that CACNA1S mutations may comprise a previously unrecognized genetic risk factor in a greater spectrum of motor unit disorders including amyotrophic lateral sclerosis. (PMID:17587224)
- A Polish three-generation family with hypokalemic periodic paralysis and a mutation in CACNA1S is investigated. (PMID:18229654)
- All mutations affected CACNA1S arginine residues, consistent with the gating pore cation leak hypothesis of hypokalemic periodic paralysis. Arginine mutations in S4 segments underlie 90% of hypokalemic periodic paralysis cases. (PMID:19118277)
- Ca(V)1.1 Delta 29 splice variant revealed the structural bases underlying the specific gating properties of skeletal muscle Ca(2+) channels, and suggests the existence of a distinct mode of excitation-contraction coupling in developing muscle (PMID:19134469)
- A novel method to detect autoantibodies to dihydropyridine receptor (DHPR), found increased DHPR antibody in myasthenia gravis patients compared to controls. (PMID:19187971)
- Results identify a new mutation in CACNA1S and expand the spectrum of CACNA1S mutations associated with HypoPP. (PMID:19779499)
- The study identified a single potentially pathogenic change in CACNA1S (p.Arg174Trp), and highlights that the haplotype structure across CACNA1S is diverse, with a high degree of variability (PMID:19825159)
- All individuals in the Italian family with malignant hyperthermia showed cosegregation of informative markers close to the voltage-dependent Ca2+ channel alpha-1S-subunit gene. Sequence analysis showed a c.4060A>T transversion. (PMID:20861472)
- Mutations in the affected genes cause Malignant Hyperthermia. (PMID:21248738)
- Expression of transgenic variants of dihydropyridine receptor (alpha1DHPR) subunit leads to replacement of native channels interacting with ryanodine receptor 1 (RyR1), demonstrating molecular remodelling in adult skeletal muscle fibers. (PMID:21262876)
- Three SNPs of CACNA1S gene exon 11 were found but could not be associated with thyrotoxic hypokalemic periodic paralysis in people of Han Nationality in Sichuan. (PMID:21774221)
- All familial periodic paralysis patients studied have mutations in either CACNA1S or SCN4A, but only 4 sporadic periodic paralysis patients have de novo mutations in CACNA1S (R1239H) and SCN4A (R669x2, R1135H). (PMID:21841462)
- Affected members of a 5-generation Chinese family with hypokalemic periodic paralysis patients had a novel His916Gln mutation in all male HypoPP patients of the family. Penetrance of the mutation was complete in male carriers, but not female carriers. (PMID:21845430)
- A novel mutation in the CACNA1S gene–p.Arg900Gly–is found in a patient with hypokalemic periodic paralysis; this mutation is subsequently found to affect some of the patient’s other family members. (PMID:21855088)
- Misregulated splicing and altered gating of Ca(V)1.1 calcium channel is associated with muscle weakness in myotonic dystrophy. (PMID:22140091)
- Data indicate that the presence of either one of these JP-45 variants decreased the sensitivity of the dihydropyridine receptor DHPR to activation. (PMID:22927026)
- Aberrant splicing of Cav 1.1 may alter intracellular Ca(2+) signalling in myotonic dystrophy 1 and 2 myotubes. The differing dysregulation of intracellular Ca(2+) handling in DM1 and DM2 may explain their distinct sarcolemmal hyperexcitabilities. (PMID:23888875)
- Exome sequencing revealed one rare cacna1s nonsynonymous variant in a family with malignant hyperthermia (PMID:24013571)
- The authors found one and three rare variants of unknown significance in CACNA1S in the Malignant Hyperthermia and Exertional Heat cohorts (PMID:25658027)
- Defects in the genes coding for the skeletal muscle ryanodine receptor and alpha 1 subunit of the dihydropyridine receptor (CACNA1S) have been identified as causative for malignant hyperthermia. (PMID:25735680)
- CACNA1S and SCN4A mutations are relatively rare in patients with hypokalemic periodic paralysis (PMID:26252573)
- whole-exome next-generation sequencing was used to identify a mutation in the CACNA1S gene, R900S, which is a rare mutation associated with hypokalemic periodic paralysis; study provides further evidence for the phenotypic variation and pharmacogenomics of hypokalemic periodic paralysis (PMID:26433613)
- These results provide new insights into the role of muscle-specific proteins on the structural arrangement of alpha1S intracellular loops and point to a new conformational effect of the beta1a subunit in supporting skeletal muscle excitation-contraction coupling. (PMID:27129199)
- he ryanodine receptor 1 (RyR1) is mainly expressed in the sarcoplasmic reticulum (SR) of skeletal muscle and is a calcium release channel which is coupled to the dihydropyridine receptor (CACNA1S) in the T-tubule of the sarcolemma. (PMID:27147545)
- review of the pharmacogenetics and pathophysiology of CACNA1S mutations in malignant hyperthermia susceptibility type 5 (MHS5); several mutations are known to be risk factors for increased susceptibility; at present, one or at most six CACNA1S mutations display significant linkage or association either to clinically diagnosed MH or to MHS (PMID:28011884)
- Study identified by exome sequencing both recessive and dominant CACNA1S mutations as a cause of a congenital myopathy characterized by peculiar morphological hallmarks in a cohort of 11 patients from 7 families. (PMID:28012042)
- Study used structure modeling and MD simulations to predict pathogenic omega-currents in CaV1.1 and CaV1.3 Ca(2+) channels bearing several S4 charge mutations: omega-currents conducted in resting state, but not during voltage-sensing domain activation. Mechanism responsible depends on the number of charges in S4, the position of the mutated S4 charge and countercharges, and the nature of the replacing amino acid. (PMID:28978442)
- V876E mutation generates a gating pore current that carries strong resting Na(+) inward currents in physiological conditions that are likely responsible for the severe hypokalemic periodic paralysis associated with this mutation. (PMID:29114033)
- Cav1.1 is specified for the excitation-contraction coupling of skeletal muscles, and has been a prototype in the structural investigations of Cav channels. This article summarized the recent advances in the structural elucidation of Cav1.1 and the mechanistic insights derived from the 3.6 A structure obtained using single-particle, electron cryomicroscopy. (PMID:29594856)
- Genetic variants within the RYR1 and CACNA1S genes are likely to be a major contributor to the susceptibility to statin-associated muscle symptoms. (PMID:30325262)
- Accumulating evidence supports its possible involvement in linking CaV1.1 and RyR1 in skeletal muscle EC coupling, but also indicates a second, much broader role of STAC proteins in the regulation of calcium/calmodulin-dependent feedback regulation of L-type calcium channels. (PMID:30543836)
- Bayesian statistics predicted CACNA1S variant p.Thr1009Lys and RYR1 variants p.Ser1728Phe and p.Leu4824Pro are likely pathogenic, and novel STAC3 variant p.Met187Thr has uncertain significance. Nearly a third of MHS subjects had only benign variants. Bayesian method provides new approach to predict MH pathogenicity of genetic variants (PMID:31559918)
- PharmGKB summary: very important pharmacogene information for CACNA1S. (PMID:31851124)
- Investigating the genetic susceptibility to exertional heat illness. (PMID:32054689)
- The expanding phenotype of hypokalemic periodic paralysis in a Japanese family with p.Val876Glu mutation in CACNA1S. (PMID:32104981)
- Mutation spectrum and health status in skeletal muscle channelopathies in Japan. (PMID:32660787)
- CACNA1S haploinsufficiency confers resistance to New World arenavirus infection. (PMID:32719120)
Cross-species orthologs
4 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | cacna1sa | ENSDARG00000029457 |
| danio_rerio | cacna1sb | ENSDARG00000042552 |
| mus_musculus | Cacna1s | ENSMUSG00000026407 |
| rattus_norvegicus | Cacna1s | ENSRNOG00000046231 |
Paralogs (26): CACNA1G (ENSG00000006283), SCN4A (ENSG00000007314), CACNA1I (ENSG00000100346), CACNA1F (ENSG00000102001), NALCN (ENSG00000102452), SCN2A (ENSG00000136531), SCN7A (ENSG00000136546), CACNA1A (ENSG00000141837), SCN1A (ENSG00000144285), CACNA1B (ENSG00000148408), CACNA1C (ENSG00000151067), CATSPER3 (ENSG00000152705), SCN3A (ENSG00000153253), CACNA1D (ENSG00000157388), TPCN2 (ENSG00000162341), CATSPER2 (ENSG00000166762), SCN11A (ENSG00000168356), SCN9A (ENSG00000169432), CATSPER1 (ENSG00000175294), SCN5A (ENSG00000183873), SCN10A (ENSG00000185313), TPCN1 (ENSG00000186815), CATSPER4 (ENSG00000188782), CACNA1H (ENSG00000196557), SCN8A (ENSG00000196876), CACNA1E (ENSG00000198216)
Protein
Protein identifiers
Voltage-dependent L-type calcium channel subunit alpha-1S — Q13698 (reviewed: Q13698)
Alternative names: Calcium channel, L type, alpha-1 polypeptide, isoform 3, skeletal muscle, Voltage-gated calcium channel subunit alpha Cav1.1
All UniProt accessions (8): Q13698, A0A7P0T8M7, A0A7P0TB53, A0A7P0TBJ5, A0A7P0TBR2, A0A7P0Z433, A0AAQ5BGP9, B1ALM3
UniProt curated annotations — full annotation on UniProt →
Function. Pore-forming, alpha-1S subunit of the voltage-gated calcium channel that gives rise to L-type calcium currents in skeletal muscle. Calcium channels containing the alpha-1S subunit play an important role in excitation-contraction coupling in skeletal muscle via their interaction with RYR1, which triggers Ca(2+) release from the sarcoplasmic reticulum and ultimately results in muscle contraction. Long-lasting (L-type) calcium channels belong to the ‘high-voltage activated’ (HVA) group.
Subunit / interactions. Component of a calcium channel complex consisting of a pore-forming alpha subunit (CACNA1S) and the ancillary subunits CACNB1 or CACNB2, CACNG1 and CACNA2D1. The channel complex contains alpha, beta, gamma and delta subunits in a 1:1:1:1 ratio, i.e. it contains either CACNB1 or CACNB2. CACNA1S channel activity is modulated by the auxiliary subunits (CACNB1 or CACNB2, CACNG1 and CACNA2D1). Interacts with DYSF and JSRP1. Interacts with RYR1. Interacts with STAC, STAC2 and STAC3 (via their SH3 domains). Interacts with CALM.
Subcellular location. Cell membrane. Sarcolemma. T-tubule.
Tissue specificity. Skeletal muscle specific.
Post-translational modifications. The alpha-1S subunit is found in two isoforms in the skeletal muscle: a minor form of 212 kDa containing the complete amino acid sequence, and a major form of 190 kDa derived from the full-length form by post-translational proteolysis close to Phe-1690. Phosphorylated. Phosphorylation by PKA activates the calcium channel. Both the minor and major forms are phosphorylated in vitro by PKA. Phosphorylation at Ser-1575 is involved in beta-adrenergic-mediated regulation of the channel.
Disease relevance. Periodic paralysis hypokalemic 1 (HOKPP1) [MIM:170400] An autosomal dominant disorder manifested by episodic flaccid generalized muscle weakness associated with falls of serum potassium levels. The disease is caused by variants affecting the gene represented in this entry. Malignant hyperthermia 5 (MHS5) [MIM:601887] Autosomal dominant disorder that is potentially lethal in susceptible individuals on exposure to commonly used inhalational anesthetics and depolarizing muscle relaxants. Disease susceptibility is associated with variants affecting the gene represented in this entry. Thyrotoxic periodic paralysis 1 (TTPP1) [MIM:188580] A sporadic muscular disorder characterized by episodic weakness and hypokalemia during a thyrotoxic state. It is clinically similar to hereditary hypokalemic periodic paralysis, except for the fact that hyperthyroidism is an absolute requirement for disease manifestation. The disease presents with recurrent episodes of acute muscular weakness of the four extremities that vary in severity from paresis to complete paralysis. Attacks are triggered by ingestion of a high carbohydrate load or strenuous physical activity followed by a period of rest. Thyrotoxic periodic paralysis can occur in association with any cause of hyperthyroidism, but is most commonly associated with Graves disease. Disease susceptibility is associated with variants affecting the gene represented in this entry. Congenital myopathy 18 (CMYO18) [MIM:620246] A congenital myopathy of variable severity, ranging from severe fetal akinesia to milder forms of muscle weakness. Most affected individuals show delayed motor development with generalized hypotonia and progressive axial and limb muscle weakness beginning soon after birth or in infancy. Additional features may include swallowing difficulties, external ophthalmoplegia, ptosis, high-arched palate, and respiratory insufficiency. Muscle biopsy shows variable morphologic abnormalities, including alveolar changes in the intermyofibrillar network, fiber size variability, focal disorganization, internal nuclei, and dilated sarcoplasmic reticulum and T-tubules. CMYO18 inheritance is autosomal dominant or recessive. The disease is caused by variants affecting the gene represented in this entry.
Activity regulation. Channel activity is blocked by dihydropyridines (DHP), phenylalkylamines, and by benzothiazepines.
Domain organisation. Each of the four internal repeats contains five hydrophobic transmembrane segments (S1, S2, S3, S5, S6) and one positively charged transmembrane segment (S4). S4 segments probably represent the voltage-sensor and are characterized by a series of positively charged amino acids at every third position. The loop between repeats II and III interacts with the ryanodine receptor, and is therefore important for calcium release from the endoplasmic reticulum necessary for muscle contraction.
Similarity. Belongs to the calcium channel alpha-1 subunit (TC 1.A.1.11) family. CACNA1S subfamily.
RefSeq proteins (1): NP_000060* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR002077 | VDCCAlpha1 | Family |
| IPR005446 | VDCC_L_a1su | Family |
| IPR005450 | VDCC_L_a1ssu | Family |
| IPR005821 | Ion_trans_dom | Domain |
| IPR014873 | VDCC_a1su_IQ | Domain |
| IPR027359 | Volt_channel_dom_sf | Homologous_superfamily |
| IPR031649 | GPHH_dom | Domain |
| IPR050599 | VDCC_alpha-1_subunit | Family |
Pfam: PF00520, PF08763, PF16905
Catalyzed reactions (Rhea), 1 shown:
- Ca(2+)(in) = Ca(2+)(out) (RHEA:29671)
UniProt features (133 total): topological domain 29, transmembrane region 24, sequence variant 21, sequence conflict 16, region of interest 10, modified residue 5, intramembrane region 4, repeat 4, short sequence motif 4, disulfide bond 4, compositionally biased region 3, binding site 3, glycosylation site 3, helix 2, chain 1
Structure
Experimental structures (PDB)
2 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 6B27 | X-RAY DIFFRACTION | 1.73 |
| 2VAY | X-RAY DIFFRACTION | 1.94 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q13698-F1 | 72.36 | 0.23 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (3): 292; 614; 1014
Post-translational modifications (5): 393, 397, 687, 1575, 1617
Disulfide bonds (4): 226–254, 245–261, 957–968, 1338–1352
Glycosylation sites (3): 79, 257, 1141
Function
Pathways and Gene Ontology
Reactome pathways
5 pathways
| ID | Pathway |
|---|---|
| R-HSA-419037 | NCAM1 interactions |
| R-HSA-1266738 | Developmental Biology |
| R-HSA-375165 | NCAM signaling for neurite out-growth |
| R-HSA-422475 | Axon guidance |
| R-HSA-9675108 | Nervous system development |
MSigDB gene sets: 359 (showing top):
GSE18804_SPLEEN_MACROPHAGE_VS_COLON_TUMORAL_MACROPHAGE_DN, GOBP_NEUROMUSCULAR_JUNCTION_DEVELOPMENT, GOBP_RESPONSE_TO_NITROGEN_COMPOUND, GOBP_MUSCLE_TISSUE_DEVELOPMENT, GOBP_SKELETAL_SYSTEM_DEVELOPMENT, GOBP_SKELETAL_MUSCLE_ADAPTATION, KEGG_MAPK_SIGNALING_PATHWAY, GOBP_STRIATED_MUSCLE_CELL_DIFFERENTIATION, REACTOME_NCAM_SIGNALING_FOR_NEURITE_OUT_GROWTH, CAGCTG_AP4_Q5, GOBP_MONOATOMIC_CATION_TRANSPORT, YOKOE_CANCER_TESTIS_ANTIGENS, GOBP_POSITIVE_REGULATION_OF_MUSCLE_CONTRACTION, GOBP_RESPONSE_TO_ALKALOID, GOBP_CELL_JUNCTION_ORGANIZATION
GO Biological Process (21): skeletal system development (GO:0001501), extraocular skeletal muscle development (GO:0002074), calcium ion transport (GO:0006816), muscle contraction (GO:0006936), striated muscle contraction (GO:0006941), endoplasmic reticulum organization (GO:0007029), myoblast fusion (GO:0007520), neuromuscular junction development (GO:0007528), skeletal muscle adaptation (GO:0043501), positive regulation of muscle contraction (GO:0045933), skeletal muscle fiber development (GO:0048741), release of sequestered calcium ion into cytosol (GO:0051209), calcium ion transmembrane transport (GO:0070588), cellular response to caffeine (GO:0071313), calcium ion import across plasma membrane (GO:0098703), system process (GO:0003008), monoatomic ion transport (GO:0006811), skeletal muscle tissue development (GO:0007519), monoatomic ion transmembrane transport (GO:0034220), muscle cell development (GO:0055001), transmembrane transport (GO:0055085)
GO Molecular Function (9): voltage-gated calcium channel activity (GO:0005245), calmodulin binding (GO:0005516), high voltage-gated calcium channel activity (GO:0008331), small molecule binding (GO:0036094), metal ion binding (GO:0046872), molecular function activator activity (GO:0140677), monoatomic ion channel activity (GO:0005216), calcium channel activity (GO:0005262), protein binding (GO:0005515)
GO Cellular Component (9): cytoplasm (GO:0005737), plasma membrane (GO:0005886), voltage-gated calcium channel complex (GO:0005891), sarcoplasmic reticulum (GO:0016529), T-tubule (GO:0030315), I band (GO:0031674), L-type voltage-gated calcium channel complex (GO:1990454), membrane (GO:0016020), monoatomic ion channel complex (GO:0034702)
Reactome top-level categories
Rollup of top-4 pathways:
| Category | Pathways |
|---|---|
| NCAM signaling for neurite out-growth | 1 |
| Axon guidance | 1 |
| Nervous system development | 1 |
| Developmental Biology | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cellular anatomical structure | 4 |
| skeletal muscle tissue development | 2 |
| skeletal muscle organ development | 2 |
| muscle contraction | 2 |
| calcium ion transmembrane import into cytosol | 2 |
| binding | 2 |
| system development | 1 |
| camera-type eye development | 1 |
| metal ion transport | 1 |
| muscle system process | 1 |
| organelle organization | 1 |
| endomembrane system organization | 1 |
| syncytium formation by cell-cell fusion | 1 |
| myotube differentiation | 1 |
| synapse organization | 1 |
| striated muscle adaptation | 1 |
| regulation of muscle contraction | 1 |
| positive regulation of multicellular organismal process | 1 |
| myotube cell development | 1 |
| intercellular transport | 1 |
| calcium ion transport | 1 |
| monoatomic cation transmembrane transport | 1 |
| response to caffeine | 1 |
| cellular response to alkaloid | 1 |
| cellular response to purine-containing compound | 1 |
| calcium ion import | 1 |
| inorganic cation import across plasma membrane | 1 |
| calcium ion import into cytosol | 1 |
| multicellular organismal process | 1 |
| transport | 1 |
| striated muscle tissue development | 1 |
| monoatomic ion transport | 1 |
| transmembrane transport | 1 |
| muscle cell differentiation | 1 |
| cell development | 1 |
| calcium channel activity | 1 |
| voltage-gated monoatomic cation channel activity | 1 |
| protein binding | 1 |
| voltage-gated calcium channel activity | 1 |
| cation binding | 1 |
Protein interactions and networks
STRING
1786 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| CACNA1S | RYR1 | P21817 | 986 |
| CACNA1S | KCNJ18 | B7U540 | 909 |
| CACNA1S | CAV3 | P56539 | 907 |
| CACNA1S | STAC3 | Q96MF2 | 898 |
| CACNA1S | CACNA1F | O60840 | 883 |
| CACNA1S | JSRP1 | Q96MG2 | 881 |
| CACNA1S | CACNB1 | Q02641 | 858 |
| CACNA1S | CACNA2D1 | P54289 | 850 |
| CACNA1S | CALM1 | P02593 | 843 |
| CACNA1S | CACNG1 | Q06432 | 842 |
| CACNA1S | CALML3 | P27482 | 838 |
| CACNA1S | CALML5 | Q9NZT1 | 838 |
| CACNA1S | CALML6 | Q8TD86 | 832 |
| CACNA1S | CALML4 | Q96GE6 | 832 |
| CACNA1S | CACNA1C | Q13936 | 825 |
IntAct
21 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| TNKS2 | CACNA1S | psi-mi:“MI:0915”(physical association) | 0.590 |
| CACNA1S | TNKS2 | psi-mi:“MI:0407”(direct interaction) | 0.590 |
| CACNA1S | NHERF4 | psi-mi:“MI:0915”(physical association) | 0.560 |
| NHERF4 | CACNA1S | psi-mi:“MI:0915”(physical association) | 0.560 |
| CYSRT1 | CACNA1S | psi-mi:“MI:0915”(physical association) | 0.560 |
| CACNA1S | MEOX2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CACNA1S | CCDC106 | psi-mi:“MI:0915”(physical association) | 0.560 |
| REL | CACNA1S | psi-mi:“MI:0915”(physical association) | 0.560 |
| YWHAZ | LMNA | psi-mi:“MI:0914”(association) | 0.560 |
| TNKS | CACNA1S | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| CACNA1S | PCNA | psi-mi:“MI:0915”(physical association) | 0.370 |
| CACNA1S | REL | psi-mi:“MI:0915”(physical association) | 0.000 |
| CACNA1S | CYSRT1 | psi-mi:“MI:0915”(physical association) | 0.000 |
| CACNA1S | MEOX2 | psi-mi:“MI:0915”(physical association) | 0.000 |
| CACNA1S | CCDC106 | psi-mi:“MI:0915”(physical association) | 0.000 |
BioGRID (11): PDZD3 (Two-hybrid), MEOX2 (Two-hybrid), REL (Two-hybrid), CCDC106 (Two-hybrid), CYSRT1 (Two-hybrid), SRI (Reconstituted Complex), CACNA1S (Affinity Capture-MS), CACNA1S (Protein-peptide), CACNA1S (Affinity Capture-MS), CACNA1S (Affinity Capture-MS), PPP2R2A (Co-fractionation)
ESM2 similar proteins: B1AWN6, C9D7C2, D0E0C2, O00555, O08562, O35505, O55017, O57483, O60840, O73700, O88420, O88457, P02719, P07293, P15381, P22002, P22316, P27732, P27884, P54282, P56698, P56699, P91645, P97445, Q00975, Q01668, Q01815, Q02294, Q02343, Q02485, Q02789, Q05152, Q07652, Q13698, Q13936, Q15858, Q15878, Q25452, Q28644, Q2XVR3
Diamond homologs: A2APX8, A2ASI5, B1AWN6, B1AYL1, D0E0C2, F1LQQ7, O08562, O42398, O46669, O73705, O73706, O73707, O88420, O88457, P02719, P04774, P04775, P07293, P08104, P0DMA5, P15389, P15390, P35498, P35499, P35500, P56699, Q01118, Q02485, Q02789, Q05973, Q07652, Q13698, Q14524, Q15858, Q20JQ7, Q28371, Q28644, Q2XVR3, Q2XVR4, Q2XVR5
SIGNOR signaling
4 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| PRKACA | “up-regulates activity” | CACNA1S | phosphorylation |
| CAMK2A | “up-regulates activity” | CACNA1S | phosphorylation |
| CSNK2A1 | “up-regulates activity” | CACNA1S | phosphorylation |
| CSNK2B | “up-regulates activity” | CACNA1S | phosphorylation |
Disease & clinical
Clinical variants and AI predictions
ClinVar
3508 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 73 |
| Likely pathogenic | 48 |
| Uncertain significance | 1565 |
| Likely benign | 1211 |
| Benign | 129 |
Top pathogenic / likely-pathogenic (30)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1012548 | NM_000069.3(CACNA1S):c.2691G>C (p.Arg897Ser) | Pathogenic |
| 1069371 | NM_000069.3(CACNA1S):c.436del (p.Gln146fs) | Pathogenic |
| 1074196 | NM_000069.3(CACNA1S):c.1274del (p.Cys425fs) | Pathogenic |
| 1180741 | NM_000069.3(CACNA1S):c.3724A>G (p.Arg1242Gly) | Pathogenic |
| 1206372 | NM_000069.3(CACNA1S):c.1246C>T (p.Gln416Ter) | Pathogenic |
| 1356276 | NM_000069.3(CACNA1S):c.78del (p.Arg26fs) | Pathogenic |
| 1431806 | NM_000069.3(CACNA1S):c.4173G>A (p.Trp1391Ter) | Pathogenic |
| 1446481 | NM_000069.3(CACNA1S):c.1087del (p.Leu363fs) | Pathogenic |
| 1451963 | NM_000069.3(CACNA1S):c.5229C>A (p.Cys1743Ter) | Pathogenic |
| 1452817 | NM_000069.3(CACNA1S):c.4834del (p.Leu1612fs) | Pathogenic |
| 1453569 | NM_000069.3(CACNA1S):c.2324_2330del (p.Glu775fs) | Pathogenic |
| 1454476 | NC_000001.10:g.(?201012389)(201013604_?)del | Pathogenic |
| 1455433 | NM_000069.3(CACNA1S):c.4210del (p.Ala1404fs) | Pathogenic |
| 1459071 | NM_000069.3(CACNA1S):c.85del (p.Arg29fs) | Pathogenic |
| 1708506 | NM_000069.3(CACNA1S):c.1252_1253del (p.Asn418fs) | Pathogenic |
| 1723135 | NM_000069.3(CACNA1S):c.2700G>C (p.Arg900Ser) | Pathogenic |
| 17623 | NM_000069.3(CACNA1S):c.3716G>A (p.Arg1239His) | Pathogenic |
| 17624 | NM_000069.3(CACNA1S):c.3715C>G (p.Arg1239Gly) | Pathogenic |
| 1922123 | NM_000069.3(CACNA1S):c.1366C>T (p.Gln456Ter) | Pathogenic |
| 1990993 | NM_000069.3(CACNA1S):c.4819C>T (p.Gln1607Ter) | Pathogenic |
| 1993906 | NM_000069.3(CACNA1S):c.794G>A (p.Trp265Ter) | Pathogenic |
| 2008122 | NC_000001.11:g.201044429_201044459del | Pathogenic |
| 2012122 | NM_000069.3(CACNA1S):c.3472_3473del (p.Thr1158fs) | Pathogenic |
| 2038462 | NM_000069.3(CACNA1S):c.3760C>T (p.Arg1254Ter) | Pathogenic |
| 2061561 | NM_000069.3(CACNA1S):c.4967del (p.Leu1656fs) | Pathogenic |
| 21034 | NM_000069.3(CACNA1S):c.1582C>G (p.Arg528Gly) | Pathogenic |
| 2174972 | NM_000069.3(CACNA1S):c.4172G>A (p.Trp1391Ter) | Pathogenic |
| 2428663 | NM_000069.3(CACNA1S):c.2224C>T (p.Pro742Ser) | Pathogenic |
| 2443900 | NM_000069.3(CACNA1S):c.1189_1190del (p.Ser397fs) | Pathogenic |
| 2443901 | NM_000069.3(CACNA1S):c.4453C>T (p.Gln1485Ter) | Pathogenic |
SpliceAI
7196 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 1:201040079:GAGC:G | acceptor_gain | 1.0000 |
| 1:201040081:GC:G | acceptor_gain | 1.0000 |
| 1:201040082:CC:C | acceptor_gain | 1.0000 |
| 1:201040083:C:CC | acceptor_gain | 1.0000 |
| 1:201040084:T:A | acceptor_loss | 1.0000 |
| 1:201041448:T:TA | donor_gain | 1.0000 |
| 1:201041449:C:A | donor_gain | 1.0000 |
| 1:201041506:AGGAC:A | donor_gain | 1.0000 |
| 1:201043530:CT:C | acceptor_gain | 1.0000 |
| 1:201044338:C:A | donor_gain | 1.0000 |
| 1:201044341:T:TA | donor_gain | 1.0000 |
| 1:201044453:CTGC:C | acceptor_gain | 1.0000 |
| 1:201045313:CAGA:C | acceptor_gain | 1.0000 |
| 1:201045316:A:AC | acceptor_gain | 1.0000 |
| 1:201045316:A:C | acceptor_gain | 1.0000 |
| 1:201045325:A:C | acceptor_gain | 1.0000 |
| 1:201047110:CTTAC:C | donor_loss | 1.0000 |
| 1:201047111:TTAC:T | donor_loss | 1.0000 |
| 1:201047112:TACC:T | donor_loss | 1.0000 |
| 1:201047235:ATCAT:A | acceptor_gain | 1.0000 |
| 1:201047236:TCAT:T | acceptor_gain | 1.0000 |
| 1:201047237:CAT:C | acceptor_gain | 1.0000 |
| 1:201047237:CATC:C | acceptor_gain | 1.0000 |
| 1:201047238:AT:A | acceptor_gain | 1.0000 |
| 1:201047238:ATCT:A | acceptor_loss | 1.0000 |
| 1:201047239:TCTG:T | acceptor_loss | 1.0000 |
| 1:201047240:C:CC | acceptor_gain | 1.0000 |
| 1:201047240:CT:C | acceptor_loss | 1.0000 |
| 1:201047241:T:A | acceptor_loss | 1.0000 |
| 1:201047521:CTACC:C | donor_loss | 1.0000 |
AlphaMissense
12413 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 1:201050414:A:G | W1406R | 1.000 |
| 1:201050414:A:T | W1406R | 1.000 |
| 1:201058438:G:C | S1193R | 1.000 |
| 1:201058438:G:T | S1193R | 1.000 |
| 1:201058440:T:G | S1193R | 1.000 |
| 1:201047576:A:G | W1498R | 0.999 |
| 1:201047576:A:T | W1498R | 0.999 |
| 1:201047599:A:G | L1490P | 0.999 |
| 1:201048611:A:T | V1471D | 0.999 |
| 1:201048614:A:G | L1470P | 0.999 |
| 1:201049064:A:G | L1426P | 0.999 |
| 1:201049067:A:G | L1425P | 0.999 |
| 1:201050412:C:A | W1406C | 0.999 |
| 1:201050412:C:G | W1406C | 0.999 |
| 1:201050425:A:G | F1402S | 0.999 |
| 1:201051008:G:C | S1363R | 0.999 |
| 1:201051008:G:T | S1363R | 0.999 |
| 1:201051010:T:G | S1363R | 0.999 |
| 1:201053529:C:A | R1242M | 0.999 |
| 1:201058442:C:T | G1192D | 0.999 |
| 1:201058443:C:G | G1192R | 0.999 |
| 1:201058460:T:A | D1186V | 0.999 |
| 1:201059231:G:C | F1161L | 0.999 |
| 1:201059231:G:T | F1161L | 0.999 |
| 1:201059233:A:G | F1161L | 0.999 |
| 1:201061951:A:G | W1016R | 0.999 |
| 1:201061951:A:T | W1016R | 0.999 |
| 1:201069523:G:C | S813R | 0.999 |
| 1:201069523:G:T | S813R | 0.999 |
| 1:201069525:T:G | S813R | 0.999 |
dbSNP variants (sampled 300 via entrez): RS1000133942 (1:201098193 C>T), RS1000134288 (1:201082630 T>C), RS1000210854 (1:201084287 CA>C,CAA), RS1000259582 (1:201070803 C>T), RS1000259842 (1:201106641 T>C), RS1000271942 (1:201082345 G>A), RS1000285348 (1:201041157 G>A,C), RS1000327896 (1:201076650 A>G), RS1000345706 (1:201111600 C>G,T), RS1000441989 (1:201040786 G>A,C,T), RS1000470898 (1:201081467 C>T), RS1000497441 (1:201067104 C>T), RS1000578812 (1:201046531 G>C), RS1000581100 (1:201086705 C>T), RS1000614023 (1:201051346 G>T)
Disease associations
OMIM: gene MIM:114208 | disease phenotypes: MIM:188580, MIM:601887, MIM:170400, MIM:620246, MIM:145600, MIM:117000, MIM:160150, MIM:162500
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| hypokalemic periodic paralysis, type 1 | Strong | Autosomal dominant |
| malignant hyperthermia, susceptibility to, 5 | Strong | Autosomal dominant |
| congenital myopathy | Strong | Autosomal dominant |
| congenital myopathy 18 | Strong | Autosomal dominant |
| hypokalemic periodic paralysis | Supportive | Autosomal dominant |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| malignant hyperthermia, susceptibility to, 5 | Moderate | AD |
Mondo (14): thyrotoxic periodic paralysis, susceptibility to, 1 (MONDO:0008570), malignant hyperthermia, susceptibility to, 5 (MONDO:0011163), hypokalemic periodic paralysis, type 1 (MONDO:0042979), congenital myopathy 18 (MONDO:0859514), long QT syndrome (MONDO:0002442), malignant hyperthermia, susceptibility to, 1 (MONDO:0007783), malignant hyperthermia of anesthesia (MONDO:0018493), hypokalemic periodic paralysis (MONDO:0008223), congenital myopathy (MONDO:0019952), centronuclear myopathy (MONDO:0018947), hereditary neuropathy with liability to pressure palsies (MONDO:0008087), malignant hyperthermia, susceptibility to (MONDO:0800188), intellectual disability (MONDO:0001071), muscular atrophy (MONDO:0004323)
Orphanet (7): Malignant hyperthermia of anesthesia (Orphanet:423), Hypokalemic periodic paralysis (Orphanet:681), Thyrotoxic periodic paralysis (Orphanet:79102), Congenital myopathy (Orphanet:97245), Centronuclear myopathy (Orphanet:595), Hereditary neuropathy with liability to pressure palsies (Orphanet:640), NON RARE IN EUROPE: Unexplained intellectual disability (Orphanet:319658)
HPO phenotypes
95 total (30 of 95 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000006 | Autosomal dominant inheritance |
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000016 | Urinary retention |
| HP:0000218 | High palate |
| HP:0000597 | Ophthalmoparesis |
| HP:0000602 | Ophthalmoplegia |
| HP:0000836 | Hyperthyroidism |
| HP:0000853 | Goiter |
| HP:0000975 | Hyperhidrosis |
| HP:0001252 | Hypotonia |
| HP:0001265 | Hyporeflexia |
| HP:0001270 | Motor delay |
| HP:0001315 | Reduced tendon reflexes |
| HP:0001324 | Muscle weakness |
| HP:0001337 | Tremor |
| HP:0001513 | Obesity |
| HP:0001649 | Tachycardia |
| HP:0001657 | Prolonged QT interval |
| HP:0001663 | Ventricular fibrillation |
| HP:0001722 | High-output congestive heart failure |
| HP:0001824 | Weight loss |
| HP:0001919 | Acute kidney injury |
| HP:0001942 | Metabolic acidosis |
| HP:0001945 | Fever |
| HP:0001962 | Palpitations |
| HP:0002019 | Constipation |
| HP:0002047 | Malignant hyperthermia |
| HP:0002153 | Hyperkalemia |
| HP:0002203 | Respiratory paralysis |
| HP:0002445 | Tetraplegia |
GWAS associations
29 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST000624_9 | Ulcerative colitis | 2.000000e-07 |
| GCST001221_4 | Permanent tooth development | 8.000000e-17 |
| GCST003401_5 | Glomerular filtration rate in non diabetics (creatinine) | 7.000000e-11 |
| GCST004131_38 | Inflammatory bowel disease | 1.000000e-21 |
| GCST004132_68 | Crohn’s disease | 1.000000e-10 |
| GCST004133_18 | Ulcerative colitis | 4.000000e-16 |
| GCST004292_31 | Glomerular filtration rate (creatinine) | 2.000000e-08 |
| GCST005389_1 | Tooth agenesis | 2.000000e-16 |
| GCST007344_55 | Estimated glomerular filtration rate | 3.000000e-09 |
| GCST007876_144 | Estimated glomerular filtration rate | 2.000000e-08 |
| GCST008058_82 | Estimated glomerular filtration rate | 2.000000e-22 |
| GCST008059_70 | Estimated glomerular filtration rate | 3.000000e-22 |
| GCST008310_5 | Cardiac Troponin-T levels | 8.000000e-08 |
| GCST008790_7 | Urinary albumin-to-creatinine ratio | 1.000000e-08 |
| GCST008794_46 | Urinary albumin-to-creatinine ratio | 1.000000e-08 |
| GCST010397_34 | Gut microbiota (bacterial taxa, rank normal transformation method) | 2.000000e-06 |
| GCST010697_41 | Cortical surface area (min-P) | 2.000000e-21 |
| GCST010698_48 | Subcortical volume (min-P) | 4.000000e-11 |
| GCST010699_65 | Brain morphology (min-P) | 2.000000e-23 |
| GCST010700_61 | Cortical thickness (MOSTest) | 2.000000e-09 |
| GCST010701_90 | Cortical surface area (MOSTest) | 4.000000e-14 |
| GCST010702_100 | Subcortical volume (MOSTest) | 2.000000e-08 |
| GCST010703_156 | Brain morphology (MOSTest) | 3.000000e-09 |
| GCST90000025_839 | Appendicular lean mass | 3.000000e-18 |
| GCST90000026_29 | Appendicular lean mass | 9.000000e-06 |
| GCST90000027_4 | Appendicular lean mass | 9.000000e-14 |
| GCST90002388_639 | Lymphocyte count | 2.000000e-16 |
| GCST90002389_94 | Lymphocyte percentage of white cells | 3.000000e-11 |
| GCST90011899_9 | Aspartate aminotransferase levels | 1.000000e-10 |
EFO canonical traits (9, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0005043 | cardiac troponin T measurement |
| EFO:0007778 | urinary albumin to creatinine ratio |
| EFO:0007874 | gut microbiome measurement |
| EFO:0004346 | neuroimaging measurement |
| EFO:0004840 | cortical thickness |
| EFO:0004980 | appendicular lean mass |
| EFO:0004587 | lymphocyte count |
| EFO:0007993 | lymphocyte percentage of leukocytes |
| EFO:0004736 | aspartate aminotransferase measurement |
MeSH disease descriptors (8)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D020514 | Hypokalemic Periodic Paralysis | C05.651.701.450; C10.668.491.650.450; C16.320.565.618.711.550; C18.452.648.618.711.550 |
| D008607 | Intellectual Disability | C10.597.606.360; C23.888.592.604.646; F01.700.687; F03.625.539 |
| D008133 | Long QT Syndrome | C14.280.067.565; C14.280.123.625; C16.131.240.400.715; C23.550.073.547 |
| D008305 | Malignant Hyperthermia | C23.550.505.700; C23.550.767.600; C23.888.119.455.500 |
| D009133 | Muscular Atrophy | C10.597.613.612; C23.300.070.500; C23.888.592.608.612 |
| C535694 | Malignant hyperthermia susceptibility type 1 (supp.) | |
| C535698 | Malignant hyperthermia susceptibility type 5 (supp.) | |
| C536965 | Tomaculous neuropathy (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (3): CHEMBL2095229 (PROTEIN FAMILY), CHEMBL2363032 (PROTEIN COMPLEX GROUP), CHEMBL3805 (SINGLE PROTEIN)
Molecules with ChEMBL bioactivity
48 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 646,199 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).
| Molecule | Name | Phase | Patents |
|---|---|---|---|
| CHEMBL1008 | BEPRIDIL | 4 | 11,776 |
| CHEMBL11 | IMIPRAMINE | 4 | 48,893 |
| CHEMBL1107 | HALOFANTRINE | 4 | 9,722 |
| CHEMBL1108 | DROPERIDOL | 4 | 16,888 |
| CHEMBL114 | SAQUINAVIR | 4 | 39,899 |
| CHEMBL1175 | DULOXETINE | 4 | 28,527 |
| CHEMBL12 | DIAZEPAM | 4 | 92,281 |
| CHEMBL12713 | SERTINDOLE | 4 | 8,984 |
| CHEMBL1294 | QUINIDINE | 4 | 71,943 |
| CHEMBL141 | LAMIVUDINE | 4 | 12,250 |
| CHEMBL1423 | PIMOZIDE | 4 | 17,310 |
| CHEMBL16 | PHENYTOIN | 4 | 53,375 |
| CHEMBL17157 | TERFENADINE | 4 | 25,393 |
| CHEMBL1729 | CISAPRIDE | 4 | 14,365 |
| CHEMBL1734 | SOLIFENACIN | 4 | 296 |
| CHEMBL193 | NIFEDIPINE | 4 | 74,353 |
| CHEMBL23 | DILTIAZEM | 4 | 54,676 |
| CHEMBL255863 | NILOTINIB | 4 | 38,627 |
| CHEMBL296419 | ASTEMIZOLE | 4 | 21,577 |
| CHEMBL363295 | TERODILINE | 4 | 5,064 |
| CHEMBL42 | CLOZAPINE | 4 | |
| CHEMBL45816 | MIBEFRADIL | 4 | |
| CHEMBL473 | DOFETILIDE | 4 | |
| CHEMBL479 | THIORIDAZINE | 4 | |
| CHEMBL490 | PAROXETINE | 4 | |
| CHEMBL502 | DONEPEZIL | 4 | |
| CHEMBL533 | IBUTILIDE | 4 | |
| CHEMBL535 | SUNITINIB | 4 | |
| CHEMBL54 | HALOPERIDOL | 4 | |
| CHEMBL5416410 | DASATINIB | 4 |
PharmGKB: 1 entry (VIP=true, CPIC=true)
PharmGKB clinical annotations
14 annotations.
| Variant | Type | Level | Drugs | Phenotypes |
|---|---|---|---|---|
| rs1800559 | Toxicity | 1A | enflurane | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | halothane | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | sevoflurane | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | isoflurane | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | succinylcholine | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | desflurane | Malignant Hyperthermia |
| rs1800559 | Toxicity | 1A | methoxyflurane | |
| rs772226819 | Toxicity | 1A | succinylcholine | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | halothane | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | sevoflurane | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | desflurane | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | isoflurane | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | methoxyflurane | Malignant Hyperthermia |
| rs772226819 | Toxicity | 1A | enflurane | Malignant Hyperthermia |
PharmGKB variants
9 variants.
| Variant | Genes | Level | Score | #Clin annots | Drugs |
|---|---|---|---|---|---|
| rs1800559 | CACNA1S | 1A | 100.50 | 7 | desflurane;enflurane;methoxyflurane;sevoflurane;halothane;isoflurane;succinylcholine |
| rs772226819 | CACNA1S | 1A | 100.25 | 7 | desflurane;enflurane;halothane;isoflurane;methoxyflurane;succinylcholine;sevoflurane |
| rs1204964501 | CACNA1S | 0.00 | 0 | ||
| rs768445692 | CACNA1S | 0.00 | 0 | ||
| rs377474103 | CACNA1S | 0.00 | 0 | ||
| rs1225367412 | CACNA1S | 0.00 | 0 | ||
| rs529038948 | CACNA1S | 0.00 | 0 | ||
| rs183195890 | CACNA1S | 0.00 | 0 | ||
| rs80338782 | CACNA1S | 0.00 | 0 |
PharmGKB dosing guidelines
1 guidelines.
| Source | Drug | Guideline | Dosing? | Recommendation? |
|---|---|---|---|---|
| CPIC | desflurane;enflurane;halothane;isoflurane;methoxyflurane;sevoflurane;succinylcholine | Annotation of CPIC Guideline for desflurane, enflurane, halothane, isoflurane, methoxyflurane, sevoflurane, succinylcholine and CACNA1S, RYR1 | yes |
GtoPdb / IUPHAR curated pharmacology
(IUPHAR/BPS Guide to Pharmacology — expert-curated)
Target class: vgic — Voltage-gated calcium channels (CaV)
Most potent curated ligand interactions (12 total), top 12:
| Ligand | Action | Affinity | Parameter |
|---|---|---|---|
| 3H-isradipine | Antagonist | 9.7 | pKd |
| 3Hdevapamil | Antagonist | 8.7 | pKd |
| (+)-isradipine | Antagonist | 8.2 | pIC50 |
| FPL64176 | Activator | 7.8 | pEC50 |
| (-)-(S)-BayK8644 | Activator | 7.76 | pEC50 |
| 3H-cis-diltiazem | Antagonist | 7.4 | pKd |
| nifedipine | Antagonist | 6.3 | pIC50 |
| nitrendipine | Antagonist | 6.0 | pIC50 |
| nimodipine | Antagonist | 6.0 | pIC50 |
| verapamil | Antagonist | 5.0 | pIC50 |
| Cd2+ | Antagonist | 4.3 | pIC50 |
| diltiazem | Antagonist | 4.2 | pIC50 |
ChEMBL bioactivities
235 potent at pChembl≥5 of 286 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).
| pChembl | Type | Value | Unit | Molecule |
|---|---|---|---|---|
| 11.00 | IC50 | 0.01 | nM | CHEMBL286157 |
| 10.89 | IC50 | 0.013 | nM | CHEMBL317044 |
| 10.82 | IC50 | 0.015 | nM | CHEMBL441428 |
| 10.77 | IC50 | 0.017 | nM | CHEMBL286598 |
| 10.66 | IC50 | 0.022 | nM | CHEMBL37402 |
| 10.57 | IC50 | 0.027 | nM | CHEMBL103806 |
| 10.52 | IC50 | 0.03 | nM | CHEMBL37899 |
| 10.48 | IC50 | 0.033 | nM | CHEMBL204616 |
| 10.35 | IC50 | 0.045 | nM | CHEMBL35368 |
| 10.34 | IC50 | 0.046 | nM | CHEMBL1099207 |
| 10.30 | IC50 | 0.05 | nM | CHEMBL285868 |
| 9.85 | IC50 | 0.14 | nM | CHEMBL321999 |
| 9.82 | IC50 | 0.15 | nM | NITRENDIPINE |
| 9.60 | IC50 | 0.25 | nM | CHEMBL105444 |
| 9.46 | IC50 | 0.35 | nM | NITRENDIPINE |
| 9.41 | IC50 | 0.39 | nM | CHEMBL35123 |
| 9.00 | IC50 | 1 | nM | NITRENDIPINE |
| 8.82 | IC50 | 1.5 | nM | CHEMBL329897 |
| 8.82 | IC50 | 1.5 | nM | CHEMBL3891844 |
| 8.82 | IC50 | 1.5 | nM | CHEMBL319033 |
| 8.77 | IC50 | 1.7 | nM | CHEMBL89260 |
| 8.72 | IC50 | 1.9 | nM | CHEMBL3890624 |
| 8.70 | IC50 | 2 | nM | CHEMBL2092901 |
| 8.64 | IC50 | 2.3 | nM | CHEMBL102498 |
| 8.62 | IC50 | 2.4 | nM | CHEMBL3973392 |
| 8.59 | IC50 | 2.6 | nM | CHEMBL89049 |
| 8.57 | IC50 | 2.7 | nM | CHEMBL84906 |
| 8.57 | IC50 | 2.7 | nM | CHEMBL3891844 |
| 8.55 | IC50 | 2.8 | nM | CHEMBL318521 |
| 8.52 | IC50 | 3 | nM | CHEMBL3919024 |
| 8.51 | IC50 | 3.1 | nM | CHEMBL86415 |
| 8.51 | IC50 | 3.1 | nM | CHEMBL3919898 |
| 8.44 | IC50 | 3.6 | nM | CHEMBL89904 |
| 8.40 | IC50 | 4 | nM | CHEMBL3392282 |
| 8.35 | IC50 | 4.5 | nM | CHEMBL3965812 |
| 8.28 | IC50 | 5.2 | nM | CHEMBL89175 |
| 8.27 | Ki | 5.4 | nM | GALLOPAMIL |
| 8.23 | IC50 | 5.9 | nM | CHEMBL3906126 |
| 8.22 | IC50 | 6 | nM | CHEMBL3890916 |
| 8.15 | IC50 | 7 | nM | CHEMBL3940577 |
| 8.14 | IC50 | 7.2 | nM | CHEMBL3969562 |
| 8.12 | IC50 | 7.6 | nM | CHEMBL3937280 |
| 8.12 | IC50 | 7.6 | nM | CHEMBL3965812 |
| 8.10 | IC50 | 8 | nM | CHEMBL3983323 |
| 8.05 | IC50 | 9 | nM | CHEMBL3942512 |
| 8.03 | IC50 | 9.4 | nM | CHEMBL3922498 |
| 8.01 | IC50 | 9.7 | nM | CHEMBL3897303 |
| 8.00 | IC50 | 10 | nM | NIFEDIPINE |
| 7.96 | IC50 | 11 | nM | CHEMBL315125 |
| 7.96 | IC50 | 11 | nM | GALLOPAMIL |
PubChem BioAssay actives
178 with measured affinity, of 839 total; 50 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.
| Compound | Assay | Type | Value | Unit |
|---|---|---|---|---|
| 3-O-methyl 5-O-(2-methylpropyl) 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[6-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxyhexyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[10-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxydecyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[8-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxyoctyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 3-O-ethyl 5-O-octyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| diethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[2-[2,6-dimethyl-4-(3-nitrophenyl)-5-propan-2-yloxycarbonyl-1,4-dihydropyridine-3-carbonyl]oxyethyl] 3-O-ethyl 2,6-dimethyl-4-(4-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[4-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxybutyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 4-(3-cyanophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 2,6-dimethyl-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| Nisoldipine | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | <0.0001 | uM |
| 5-O-[12-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxydodecyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | 0.0001 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 2,6-dimethyl-4-[3-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | 0.0001 | uM |
| 5-O-ethyl 3-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | 0.0001 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 2,6-dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | 0.0003 | uM |
| 5-O-[2-[5-ethoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carbonyl]oxyethyl] 3-O-ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45611: Inhibition of [3H]nitrendipine binding to L-type calcium channel of guinea pig ileal longitudinal smooth muscle | ic50 | 0.0004 | uM |
| diethyl 4-(2,3-dichlorophenyl)-6-methyl-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0015 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 4-(4-fluorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | 0.0015 | uM |
| 3-O-ethyl 5-O-propan-2-yl 6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0017 | uM |
| 3-O-ethyl 5-O-propan-2-yl (4R)-6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0020 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 4-(3-methoxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | 0.0023 | uM |
| 3-O-ethyl 5-O-propan-2-yl 6-methyl-4-(3-nitrophenyl)-2-oxo-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0026 | uM |
| diethyl 4-(2-chloro-3-nitrophenyl)-6-methyl-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0027 | uM |
| 3-O-methyl 5-O-(2-methylpropyl) 4-(4-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45613: Inhibition of [3H]nitrendipine binding to guinea pig ileal longitudinal smooth muscle | ic50 | 0.0028 | uM |
| diethyl 6-methyl-4-(2-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0031 | uM |
| 5-O-ethyl 3-O-methyl 6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0036 | uM |
| diethyl 2-ethylsulfanyl-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0040 | uM |
| ethyl 3-(benzenesulfonyl)-6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-5-carboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0052 | uM |
| 5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-propan-2-yl-2-(3,4,5-trimethoxyphenyl)pentanenitrile | 751841: Binding affinity to L-Ca2+ channel verapamil site (unknown origin) by radioligand displacement assay | ki | 0.0054 | uM |
| Nifedipine | 1207754: Inhibition of Cav1.2 current measured using QPatch automatic path clamp system in CHO cells expressing Cav1.2, beta-2 and alpha-2/delta-1 subunits | ic50 | 0.0100 | uM |
| ethyl 3-(4-methoxybenzoyl)-6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-5-carboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0110 | uM |
| 5-O-ethyl 3-O-propan-2-yl 6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0140 | uM |
| diethyl 6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0170 | uM |
| diethyl 4-(2-chlorophenyl)-6-methyl-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0170 | uM |
| diethyl 2,6-dimethyl-4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-1,4-dihydropyridine-3,5-dicarboxylate | 45622: Inhibition of [3H]PN-200110 binding to Calcium channel in guinea pig ileum membrane | ki | 0.0217 | uM |
| diethyl 6-methyl-2-sulfanylidene-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyrimidine-3,5-dicarboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0260 | uM |
| diethyl 2-ethoxy-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0260 | uM |
| diethyl 4-deuterio-4-(3,5-dimethyl-1,2-oxazol-4-yl)-2,6-dimethyl-1H-pyridine-3,5-dicarboxylate | 45623: Inhibition of [3H]PN-200110 binding to Calcium channel in guinea pig ileum membrane. | ki | 0.0299 | uM |
| diethyl 4-(3,5-dimethyl-1,2-oxazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45622: Inhibition of [3H]PN-200110 binding to Calcium channel in guinea pig ileum membrane | ki | 0.0328 | uM |
| diethyl 4-[3-(4-bromophenyl)-5-methyl-1,2-oxazol-4-yl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 1466481: Displacement of [3H]PN-200110 from voltage-dependent L-type calcium channel (unknown origin) by scintillation counting method | ic50 | 0.0360 | uM |
| ethyl 6-methyl-4-(3-nitrophenyl)-3-propyl-2-sulfanylidene-1,4-dihydropyrimidine-5-carboxylate | 45769: In vitro vasorelaxant activity (calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0500 | uM |
| (3R,4R)-1-[2-(dimethylamino)ethyl]-4-(4-methoxyphenyl)-3-prop-2-enyl-4,5-dihydro-3H-1-benzazepin-2-one | 56045: In vitro ability to displace the specific binding of [3H]diltiazem to diltiazem receptor in guinea pig skeletal muscle. | kd | 0.0520 | uM |
| diethyl 4-(5-ethyl-3-methyl-1,2-oxazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 45622: Inhibition of [3H]PN-200110 binding to Calcium channel in guinea pig ileum membrane | ki | 0.0625 | uM |
| (3R,4R)-1-[2-(dimethylamino)ethyl]-4-(4-methoxyphenyl)-3-methyl-6-(trifluoromethyl)-4,5-dihydro-3H-1-benzazepin-2-one | 56045: In vitro ability to displace the specific binding of [3H]diltiazem to diltiazem receptor in guinea pig skeletal muscle. | kd | 0.0750 | uM |
| diethyl 2,6-dimethyl-4-(5-pentyl-3-phenyl-1,2-oxazol-4-yl)-1,4-dihydropyridine-3,5-dicarboxylate | 45622: Inhibition of [3H]PN-200110 binding to Calcium channel in guinea pig ileum membrane | ki | 0.0784 | uM |
| diethyl 4-(3-chlorophenyl)-6-methyl-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.0880 | uM |
| 3-O-ethyl 5-O-methyl 6-methyl-4-(3-nitrophenyl)-2-sulfanylidene-1,4-dihydropyrimidine-3,5-dicarboxylate | 217468: In vitro vasorelaxant activity (voltage-gated calcium channel blocking activity) was determined with potassium-depolarized rabbit thoracic aorta | ic50 | 0.1000 | uM |
| (3R,4R)-7-bromo-1-[2-(dimethylamino)ethyl]-6-methoxy-4-(4-methoxyphenyl)-3-methyl-4,5-dihydro-3H-1-benzazepin-2-one | 56045: In vitro ability to displace the specific binding of [3H]diltiazem to diltiazem receptor in guinea pig skeletal muscle. | kd | 0.1200 | uM |
| [(3R,4S)-7-bromo-1-[2-(dimethylamino)ethyl]-6-methoxy-4-(4-methoxyphenyl)-2-oxo-4,5-dihydro-3H-1-benzazepin-3-yl] acetate | 56045: In vitro ability to displace the specific binding of [3H]diltiazem to diltiazem receptor in guinea pig skeletal muscle. | kd | 0.1200 | uM |
| [(3R,4S)-1-(2-aminoethyl)-4-(4-methoxyphenyl)-2-oxo-6-(trifluoromethyl)-4,5-dihydro-3H-1-benzazepin-3-yl] acetate | 56045: In vitro ability to displace the specific binding of [3H]diltiazem to diltiazem receptor in guinea pig skeletal muscle. | kd | 0.1200 | uM |
CTD chemical–gene interactions
17 total (human), top 17 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Resveratrol | affects cotreatment, decreases expression | 2 |
| Benzo(a)pyrene | decreases methylation, increases methylation, increases mutagenesis | 2 |
| butyraldehyde | decreases expression | 1 |
| benzo(e)pyrene | increases methylation | 1 |
| aflatoxin B2 | increases methylation | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| incobotulinumtoxinA | decreases expression | 1 |
| Sunitinib | increases expression | 1 |
| Copper | affects cotreatment, decreases expression | 1 |
| Daunorubicin | affects response to substance | 1 |
| Methapyrilene | increases methylation | 1 |
| Plant Extracts | affects cotreatment, decreases expression | 1 |
| Tetrachlorodibenzodioxin | increases expression | 1 |
| Valproic Acid | increases methylation | 1 |
| Aflatoxin B1 | affects methylation, decreases methylation | 1 |
| Okadaic Acid | increases expression | 1 |
| Coal Ash | decreases expression | 1 |
ChEMBL screening assays
228 unique, capped per target: 142 binding, 79 functional, 5 toxicity, 2 admet
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL1003715 | Functional | Antagonist activity at voltage-dependent L-type calcium channel in human SH-SY5Y cells assessed as inhibition of KCl-induced increase in cytosolic calcium concentration at 0.3 uM pretreated for 10 mins before KCl challenge relative to contr | Tacripyrines, the first tacrine-dihydropyridine hybrids, as multitarget-directed ligands for the treatment of Alzheimer’s disease. — J Med Chem |
| CHEMBL1059038 | Binding | Inhibition of human L-type calcium channel at 100 uM | Spirocyclic delta opioid receptor agonists for the treatment of pain: discovery of N,N-diethyl-3-hydroxy-4-(spiro[chromene-2,4’-piperidine]-4-yl) benzamide (ADL5747). — J Med Chem |
| CHEMBL4236597 | ADMET | Inhibition of L-type calcium channel (unknown origin) by patch clamp assay | Discovery of TRPM8 Antagonist ( S)-6-(((3-Fluoro-4-(trifluoromethoxy)phenyl)(3-fluoropyridin-2-yl)methyl)carbamoyl)nicotinic Acid (AMG 333), a Clinical Candidate for the Treatment of Migraine. — J Med Chem |
Cellosaurus cell lines
11 cell lines: 5 induced pluripotent stem cell, 3 transformed cell line, 3 finite cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_BX22 | GM25330 | Transformed cell line | Male |
| CVCL_BX23 | GM25331 | Transformed cell line | Female |
| CVCL_BX27 | GM25343 | Finite cell line | Female |
| CVCL_BX28 | GM25344 | Finite cell line | Male |
| CVCL_RT79 | GM26593 | Transformed cell line | Female |
| CVCL_RT80 | GM26594 | Finite cell line | Female |
| CVCL_UL08 | TRNDi002-A | Induced pluripotent stem cell | Male |
| CVCL_UL09 | TRNDi002-B | Induced pluripotent stem cell | Male |
| CVCL_UL10 | TRNDi002-C | Induced pluripotent stem cell | Male |
| CVCL_UL11 | TRNDi002-D | Induced pluripotent stem cell | Male |
Clinical trials (associated diseases)
191 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT02513940 | PHASE4 | COMPLETED | Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes |
| NCT03834883 | PHASE4 | COMPLETED | Reducing the Risk of Drug-Induced QT Interval Lengthening in Women |
| NCT04169100 | PHASE4 | UNKNOWN | Novel Form of Acquired Long QT Syndrome |
| NCT04675788 | PHASE4 | COMPLETED | Novel Approaches for Minimizing Drug-Induced QT Interval Lengthening |
| NCT05657860 | PHASE4 | COMPLETED | Guanfacine Extended Release for the Reduction of Aggression and Self-injurious Behavior Associated With Prader-Willi Syndrome |
| NCT05744479 | PHASE4 | RECRUITING | Metformin for Antipsychotic-induced Weight Gain in Adults With Intellectual Disability |
| NCT06107829 | PHASE4 | WITHDRAWN | Valbenazine Treatment of Tardive Dyskinesia in Adults With Intellectual/Developmental Disabilities |
| NCT06997198 | PHASE4 | NOT_YET_RECRUITING | Deutetrabenazine Treatment for Tardive Dyskinesia in Intellectual/Developmental Disabilities |
| NCT00004802 | PHASE3 | COMPLETED | Phase III Randomized, Double-Blind, Placebo-Controlled Study of Dichlorphenamide for Periodic Paralyses and Associated Sodium Channel Disorders |
| NCT00494507 | PHASE3 | COMPLETED | Hyper- and Hypokalemic Periodic Paralysis Study |
| NCT02270736 | PHASE3 | COMPLETED | Clinical Study to Investigate the Efficacy and Safety of NT 201 Compared to Placebo in the Treatment of Chronic Troublesome Drooling Associated With Neurological Disorders and/or Intellectual Disability |
| NCT02582476 | PHASE2 | TERMINATED | Bumetanide in Hypokalaemic Periodic Paralysis |
| NCT01648205 | PHASE2 | COMPLETED | Long-term Efficacy Study of Sodium Channel Blocker in LQT3 Patients |
| NCT02412709 | PHASE2 | UNKNOWN | Long QT Syndrome Screening in Newborns |
| NCT04581408 | PHASE2 | COMPLETED | Mutation-specific Therapy for the Long QT Syndrome |
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Related Atlas pages
- Associated diseases: hypokalemic periodic paralysis, type 1, malignant hyperthermia, susceptibility to, 5, congenital myopathy, congenital myopathy 18, hypokalemic periodic paralysis
- Targeted by drugs: Diltiazem, Nifedipine, Nimodipine, Nitrendipine, Verapamil
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): centronuclear myopathy, congenital myopathy, congenital myopathy 18, hereditary neuropathy with liability to pressure palsies, hypokalemic periodic paralysis, hypokalemic periodic paralysis, type 1, long QT syndrome, malignant hyperthermia of anesthesia, malignant hyperthermia, susceptibility to, malignant hyperthermia, susceptibility to, 1, malignant hyperthermia, susceptibility to, 5, muscular atrophy, thyrotoxic periodic paralysis, susceptibility to, 1, tooth agenesis