FXYD1
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Summary
FXYD1 (FXYD domain containing ion transport regulator 1, HGNC:4025) is a protein-coding gene on chromosome 19q13.12, encoding Phospholemman (O00168). Associates with and regulates the activity of the sodium/potassium-transporting ATPase (NKA) which transports Na(+) out of the cell and K(+) into the cell.
This gene encodes a member of a family of small membrane proteins that share a 35-amino acid signature sequence domain, beginning with the sequence PFXYD and containing 7 invariant and 6 highly conserved amino acids. The approved human gene nomenclature for the family is FXYD-domain containing ion transport regulator. Mouse FXYD5 has been termed RIC (Related to Ion Channel). FXYD2, also known as the gamma subunit of the Na,K-ATPase, regulates the properties of that enzyme. FXYD1 (phospholemman), FXYD2 (gamma), FXYD3 (MAT-8), FXYD4 (CHIF), and FXYD5 (RIC) have been shown to induce channel activity in experimental expression systems. Transmembrane topology has been established for two family members (FXYD1 and FXYD2), with the N-terminus extracellular and the C-terminus on the cytoplasmic side of the membrane. The protein encoded by this gene is a plasma membrane substrate for several kinases, including protein kinase A, protein kinase C, NIMA kinase, and myotonic dystrophy kinase. It is thought to form an ion channel or regulate ion channel activity. Transcript variants with different 5’ UTR sequences have been described in the literature.
Source: NCBI Gene 5348 — RefSeq curated summary.
At a glance
- Clinical variants (ClinVar): 24 total
- MANE Select transcript:
NM_021902
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:4025 |
| Approved symbol | FXYD1 |
| Name | FXYD domain containing ion transport regulator 1 |
| Location | 19q13.12 |
| Locus type | gene with protein product |
| Status | Approved |
| Ensembl gene | ENSG00000266964 |
| Ensembl biotype | protein_coding |
| OMIM | 602359 |
| Entrez | 5348 |
Gene structure
Transcript identifiers
Ensembl transcripts: 43 — 40 protein_coding, 3 retained_intron
ENST00000351325, ENST00000455515, ENST00000587056, ENST00000588081, ENST00000588607, ENST00000588715, ENST00000589121, ENST00000589209, ENST00000590462, ENST00000592818, ENST00000612146, ENST00000874897, ENST00000874898, ENST00000874899, ENST00000874900, ENST00000874901, ENST00000874902, ENST00000874903, ENST00000874904, ENST00000874905, ENST00000874906, ENST00000874907, ENST00000874908, ENST00000874909, ENST00000874910, ENST00000874911, ENST00000874912, ENST00000874913, ENST00000874914, ENST00000874915, ENST00000874916, ENST00000874917, ENST00000874918, ENST00000874919, ENST00000874920, ENST00000874921, ENST00000874922, ENST00000874923, ENST00000874924, ENST00000874925, ENST00000874926, ENST00000874927, ENST00000874928
RefSeq mRNA: 4 — MANE Select: NM_021902
NM_001278717, NM_001278718, NM_005031, NM_021902
CCDS: CCDS12445
Canonical transcript exons
ENST00000351325 — 8 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001395903 | 35142917 | 35143109 |
| ENSE00002846763 | 35138824 | 35138894 |
| ENSE00003463322 | 35141536 | 35141572 |
| ENSE00003472571 | 35140076 | 35140140 |
| ENSE00003507899 | 35142472 | 35142521 |
| ENSE00003551774 | 35140597 | 35140629 |
| ENSE00003660543 | 35141132 | 35141206 |
| ENSE00003692671 | 35142720 | 35142771 |
Expression profiles
Bgee: expression breadth ubiquitous, 134 present calls, max score 99.54.
FANTOM5 (CAGE): breadth broad, TPM avg 16.6742 / max 647.0616, expressed in 690 samples.
FANTOM5 promoters (17 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 175212 | 9.4849 | 589 |
| 175211 | 1.4430 | 380 |
| 175213 | 1.2994 | 225 |
| 175222 | 0.8618 | 211 |
| 175216 | 0.7129 | 191 |
| 175214 | 0.6799 | 270 |
| 175221 | 0.6511 | 143 |
| 175215 | 0.4006 | 150 |
| 175220 | 0.3757 | 132 |
| 175226 | 0.2031 | 78 |
Top tissues by expression
134 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| hindlimb stylopod muscle | UBERON:0004252 | 99.54 | gold quality |
| apex of heart | UBERON:0002098 | 99.52 | gold quality |
| tibial nerve | UBERON:0001323 | 99.46 | gold quality |
| gastrocnemius | UBERON:0001388 | 99.46 | gold quality |
| skeletal muscle tissue | UBERON:0001134 | 99.33 | gold quality |
| right coronary artery | UBERON:0001625 | 99.30 | gold quality |
| right atrium auricular region | UBERON:0006631 | 99.27 | gold quality |
| heart left ventricle | UBERON:0002084 | 99.24 | gold quality |
| muscle of leg | UBERON:0001383 | 99.22 | gold quality |
| putamen | UBERON:0001874 | 99.19 | gold quality |
| popliteal artery | UBERON:0002250 | 99.18 | gold quality |
| tibial artery | UBERON:0007610 | 99.18 | gold quality |
| caudate nucleus | UBERON:0001873 | 99.17 | gold quality |
| right lobe of liver | UBERON:0001114 | 99.13 | gold quality |
| nucleus accumbens | UBERON:0001882 | 99.12 | gold quality |
| amygdala | UBERON:0001876 | 99.06 | gold quality |
| temporal lobe | UBERON:0001871 | 99.03 | gold quality |
| mucosa of stomach | UBERON:0001199 | 99.02 | gold quality |
| left coronary artery | UBERON:0001626 | 99.02 | gold quality |
| substantia nigra | UBERON:0002038 | 99.00 | gold quality |
| ascending aorta | UBERON:0001496 | 98.99 | gold quality |
| thoracic aorta | UBERON:0001515 | 98.99 | gold quality |
| endocervix | UBERON:0000458 | 98.98 | gold quality |
| heart | UBERON:0000948 | 98.91 | gold quality |
| left uterine tube | UBERON:0001303 | 98.90 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 98.89 | gold quality |
| body of uterus | UBERON:0009853 | 98.68 | gold quality |
| Ammon’s horn | UBERON:0001954 | 98.64 | gold quality |
| muscle tissue | UBERON:0002385 | 98.60 | gold quality |
| liver | UBERON:0002107 | 98.57 | gold quality |
Single-cell (SCXA)
Detected in 15 experiment(s), a significant marker in 15.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-HCAD-11 | yes | 2484.59 |
| E-MTAB-8410 | yes | 2378.76 |
| E-GEOD-135922 | yes | 1366.18 |
| E-CURD-126 | yes | 886.62 |
| E-MTAB-10485 | yes | 278.62 |
| E-HCAD-1 | yes | 75.93 |
| E-ENAD-20 | yes | 73.65 |
| E-MTAB-10287 | yes | 69.34 |
| E-HCAD-10 | yes | 35.90 |
| E-MTAB-10553 | yes | 33.52 |
| E-ANND-3 | yes | 25.64 |
| E-CURD-46 | yes | 18.17 |
| E-GEOD-84465 | yes | 12.96 |
| E-GEOD-134144 | yes | 8.63 |
| E-MTAB-10042 | yes | 8.39 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): MECP2
miRNA regulators (miRDB)
5 targeting FXYD1, 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-3196 | 98.96 | 63.91 | 326 |
| HSA-MIR-764 | 94.16 | 64.85 | 656 |
| HSA-MIR-6853-5P | 93.94 | 61.88 | 114 |
| HSA-MIR-3178 | 89.40 | 60.05 | 100 |
| HSA-MIR-6770-3P | 88.39 | 62.36 | 71 |
Literature-anchored findings (GeneRIF, showing 27)
- molecular cloning, protein expression, sequencing and NMR structure determination (PMID:12535606)
- show that the helical regions and connecting segments of FXYD1, FXYD3, and FXYD4 determined in micelles by NMR spectroscopy coincide with the positions of intron-exon junctions in the genes (PMID:16288923)
- PLM interacts with the intracellular loop of NCX1, most likely at residues 218-358 (PMID:16921169)
- study reports that FXYD1 is elevated in frontal cortex neurons of Rett syndrome patients and Mecp2-null mice; FXYD1 is identified as a MeCP2 target gene whose de-repression may directly contribute to RTT neuronal pathogenesis (PMID:17309881)
- the structure of FXYD1 suggests a mechanism whereby the phosphorylation of conserved Ser residues, by protein kinases A and C, could induce a conformational change in the cytoplasmic domain, to modulate its interaction with the Na,K-ATPase, alpha subunit (PMID:18000745)
- reconstituted FXYD1 protects both alpha1beta1 and alpha2beta1 very strongly against thermal inactivation (PMID:18052210)
- Data show that PLM associates with and modulates both NKA-alpha1 and NKA-alpha2 in a comparable but not identical manner. (PMID:19638348)
- Study reveals, in various human tissues, the specific expression of FXYD1, which may associate with Na, K-ATPase in selected cell types and modulate its catalytic properties. (PMID:19879113)
- Phospholemman modulates the gating of cardiac L-type calcium channels (PMID:20371314)
- Data suggest that phospholemman plays an important role in fine tuning the gating kinetics of cardiac calcium channels and likely plays an important role in shaping the cardiac action potential and regulating Ca(2+) dynamics in the heart. (PMID:20720179)
- PLM phosphorylation at either Ser63 or Ser68 is both necessary and sufficient for completely relieving the PLM-induced NKA inhibition. (PMID:20861470)
- Results suggest that the PLM cytoplasmic domain populates NKA-associated and membrane-associated states in dynamic equilibrium and that phosphorylation may alter the position of the equilibrium. (PMID:21130070)
- phosphorylation of PLM increases its oligomerization into tetramers, decreases its binding to NKA, and alters the structures of both the tetramer and NKA regulatory complex. (PMID:21220422)
- FXYD1 raises the affinity of the human alpha1beta1 isoform of Na,K-ATPase for Na ions (PMID:21449573)
- in left ventricular myocardium from patients with heart failure, PLM Ser-68 phosphorylation was approximately 50% lower than in nonfailing controls (PMID:21849407)
- Exercise induces FXYD1 phosphorylation at multiple sites in human muscle; in mice, contraction-induced changes in FXYD1 phosphorylation are fiber-type specific and dependent on protein kinase Calpha activity. (PMID:21957166)
- the severity of the spinal cord lesion is an important factor controlling the expression of Na(+)-K(+)-ATPase and its regulatory protein PLM (PMID:22275761)
- Intracellular trafficking of FXYD1 (phospholemman) and FXYD7 proteins in Xenopus oocytes and mammalian cells. (PMID:22535957)
- PLM regulates important ion transporters in the heart and offers a tempting target for development of drugs to treat heart failure. (PMID:23224879)
- Phospholemman is the target of a variety of post-translational modifications and these can dynamically alter the activity of the Na pump. [Review] (PMID:23672825)
- the evolutionary conservation of G-quadruplex forming sequences with the confirmation of G-quadruplex formation in vitro by two FXYD1 homologues (PMID:25051342)
- Study demonstrated that the expression of FXYD1, FXYD3 and FXYD5 is elevated in the lungs of Acute respiratory distress syndrome patients (PMID:26410457)
- Stopped-flow experiments using the dye RH421 show that FXYD1 slows the conformational transition E2(2K)ATP –> E1(3Na)ATP but does not affect 3NaE1P –> E2P3Na. (PMID:26429909)
- a period of high-intensity training with reduced training volume increases expression and phosphorylation levels of FXYD1, which may affect Na(+)/K(+) pump activity and muscle K(+) homeostasis during intense exercise. (PMID:26791827)
- Blood flow restriction augmented exercise-induced increases in muscle FXYD1 and PGC-1alpha mRNA in men (PMID:29383885)
- FXYD protein isoforms differentially modulate human Na/K pump function. (PMID:33231612)
- Expression mode and prognostic value of FXYD family members in colon cancer. (PMID:34270462)
Cross-species orthologs
2 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| mus_musculus | Fxyd1 | ENSMUSG00000036570 |
| rattus_norvegicus | Fxyd1 | ENSRNOG00000021079 |
Paralogs (6): FXYD5 (ENSG00000089327), FXYD3 (ENSG00000089356), FXYD6 (ENSG00000137726), FXYD2 (ENSG00000137731), FXYD4 (ENSG00000150201), FXYD7 (ENSG00000221946)
Protein
Protein identifiers
Phospholemman — O00168 (reviewed: O00168)
Alternative names: FXYD domain-containing ion transport regulator 1, Sodium/potassium-transporting ATPase subunit FXYD1
All UniProt accessions (2): O00168, K7EQG4
UniProt curated annotations — full annotation on UniProt →
Function. Associates with and regulates the activity of the sodium/potassium-transporting ATPase (NKA) which transports Na(+) out of the cell and K(+) into the cell. Inhibits NKA activity in its unphosphorylated state and stimulates activity when phosphorylated. Reduces glutathionylation of the NKA beta-1 subunit ATP1B1, thus reversing glutathionylation-mediated inhibition of ATP1B1. Contributes to female sexual development by maintaining the excitability of neurons which secrete gonadotropin-releasing hormone.
Subunit / interactions. Homotetramer. Monomer. Regulatory subunit of the sodium/potassium-transporting ATPase (NKA) which is composed of a catalytic alpha subunit, an auxiliary non-catalytic beta subunit and an additional regulatory subunit. The monomeric form associates with NKA while the oligomeric form does not. Interacts with the catalytic alpha-1 subunit ATP1A1. Also interacts with the catalytic alpha-2 and alpha-3 subunits ATP1A2 and ATP1A3. Very little interaction with ATP1A1, ATP1A2 or ATP1A3 when phosphorylated at Ser-83. Interacts with the non-catalytic beta-1 subunit ATP1B1. Oxidative stress decreases interaction with ATP1A1 but increases interaction with ATP1B1.
Subcellular location. Cell membrane. Sarcolemma. Apical cell membrane. Membrane. Caveola. T-tubule.
Tissue specificity. Highest expression in skeletal muscle and heart. Moderate levels in brain, placenta, lung, liver, pancreas, uterus, bladder, prostate, small intestine and colon with mucosal lining. Very low levels in kidney, colon and small intestine without mucosa, prostate without endothelial lining, spleen, and testis.
Post-translational modifications. Major plasma membrane substrate for cAMP-dependent protein kinase (PKA) and protein kinase C (PKC) in several different tissues. Phosphorylated in response to insulin and adrenergic stimulation. Phosphorylation at Ser-88 stimulates sodium/potassium-transporting ATPase activity while the unphosphorylated form inhibits sodium/potassium-transporting ATPase activity. Phosphorylation increases tetramerization, decreases binding to ATP1A1 and reduces inhibition of ATP1A1 activity. Phosphorylation at Ser-83 leads to greatly reduced interaction with ATP1A1, ATP1A2 and ATP1A3. May be phosphorylated by DMPK. Palmitoylation increases half-life and stability and is enhanced upon phosphorylation at Ser-88 by PKA.
Domain organisation. The cytoplasmic domain is sufficient to regulate sodium/potassium-transporting ATPase activity.
Similarity. Belongs to the FXYD family.
RefSeq proteins (4): NP_001265646, NP_001265647, NP_005022, NP_068702* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000272 | Ion-transport_regulator_FXYD | Family |
| IPR047281 | PLM | Family |
| IPR047297 | FXYD_motif | Conserved_site |
Pfam: PF02038
UniProt features (26 total): modified residue 6, helix 4, lipid moiety-binding region 2, mutagenesis site 2, sequence conflict 2, topological domain 2, turn 2, signal peptide 1, chain 1, strand 1, transmembrane region 1, region of interest 1, compositionally biased region 1
Structure
Experimental structures (PDB)
1 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 2JO1 | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-O00168-F1 | 71.01 | 0.06 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Post-translational modifications (8): 83, 88, 89, 60, 62, 62, 79, 82
Mutagenesis-validated functional residues (2):
| Position | Phenotype |
|---|---|
| 60 | significantly reduced half-life; when associated with s-62. |
| 62 | significantly reduced half-life; when associated with s-60. |
Function
Pathways and Gene Ontology
Reactome pathways
3 pathways
| ID | Pathway |
|---|---|
| R-HSA-5578775 | Ion homeostasis |
| R-HSA-936837 | Ion transport by P-type ATPases |
| R-HSA-9679191 | Potential therapeutics for SARS |
MSigDB gene sets: 237 (showing top):
GOBP_POTASSIUM_ION_TRANSPORT, GOBP_ESTABLISHMENT_OR_MAINTENANCE_OF_TRANSMEMBRANE_ELECTROCHEMICAL_GRADIENT, MYOGENIN_Q6, GOBP_CIRCULATORY_SYSTEM_PROCESS, GOBP_SODIUM_ION_TRANSMEMBRANE_TRANSPORT, MODULE_64, GOBP_POTASSIUM_ION_HOMEOSTASIS, GOBP_INORGANIC_ANION_TRANSPORT, TGACCTY_ERR1_Q2, GOBP_POSITIVE_REGULATION_OF_SODIUM_ION_TRANSPORT, MODULE_329, GOBP_POSITIVE_REGULATION_OF_TRANSMEMBRANE_TRANSPORT, GOBP_MONOATOMIC_CATION_TRANSPORT, GOBP_REGULATION_OF_SODIUM_ION_TRANSPORT, MODULE_66
GO Biological Process (12): potassium ion transport (GO:0006813), sodium ion transport (GO:0006814), chloride transport (GO:0006821), muscle contraction (GO:0006936), regulation of heart contraction (GO:0008016), negative regulation of protein glutathionylation (GO:0010734), regulation of cardiac muscle cell membrane potential (GO:0086036), positive regulation of sodium ion export across plasma membrane (GO:1903278), monoatomic ion transport (GO:0006811), regulation of monoatomic ion transport (GO:0043269), regulation of sodium ion transmembrane transport (GO:1902305), chloride transmembrane transport (GO:1902476)
GO Molecular Function (4): chloride channel activity (GO:0005254), sodium channel regulator activity (GO:0017080), transmembrane transporter binding (GO:0044325), ion channel regulator activity (GO:0099106)
GO Cellular Component (8): plasma membrane (GO:0005886), sodium:potassium-exchanging ATPase complex (GO:0005890), caveola (GO:0005901), intercalated disc (GO:0014704), apical plasma membrane (GO:0016324), T-tubule (GO:0030315), sarcolemma (GO:0042383), membrane (GO:0016020)
Reactome top-level categories
Rollup of top-3 pathways:
| Category | Pathways |
|---|---|
| Cardiac conduction | 1 |
| Ion channel transport | 1 |
| SARS-CoV Infections | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| metal ion transport | 2 |
| cellular anatomical structure | 2 |
| monoatomic anion transport | 1 |
| inorganic anion transport | 1 |
| muscle system process | 1 |
| heart contraction | 1 |
| regulation of blood circulation | 1 |
| protein glutathionylation | 1 |
| regulation of protein glutathionylation | 1 |
| negative regulation of protein modification process | 1 |
| regulation of membrane potential | 1 |
| sodium ion export across plasma membrane | 1 |
| positive regulation of sodium ion transmembrane transport | 1 |
| regulation of sodium ion export across plasma membrane | 1 |
| transport | 1 |
| monoatomic ion transport | 1 |
| regulation of transport | 1 |
| regulation of sodium ion transport | 1 |
| sodium ion transmembrane transport | 1 |
| regulation of monoatomic cation transmembrane transport | 1 |
| chloride transport | 1 |
| monoatomic anion transmembrane transport | 1 |
| monoatomic anion channel activity | 1 |
| chloride transmembrane transporter activity | 1 |
| sodium channel activity | 1 |
| ion channel regulator activity | 1 |
| protein binding | 1 |
| monoatomic ion channel activity | 1 |
| channel regulator activity | 1 |
| membrane | 1 |
| cell periphery | 1 |
| cation-transporting ATPase complex | 1 |
| plasma membrane protein complex | 1 |
| plasma membrane raft | 1 |
| cell-cell contact zone | 1 |
| apical part of cell | 1 |
| plasma membrane region | 1 |
| sarcolemma | 1 |
| plasma membrane | 1 |
Protein interactions and networks
STRING
790 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| FXYD1 | TAC1 | P20366 | 747 |
| FXYD1 | MECP2 | P51608 | 699 |
| FXYD1 | ZDHHC5 | Q9C0B5 | 694 |
| FXYD1 | FXYD5 | Q96DB9 | 689 |
| FXYD1 | CAV3 | P56539 | 593 |
| FXYD1 | SERPINF2 | P08697 | 585 |
| FXYD1 | TUBA1B | P04687 | 585 |
| FXYD1 | GPRIN1 | Q7Z2K8 | 546 |
| FXYD1 | ADRB1 | P08588 | 530 |
| FXYD1 | FXYD4 | P59646 | 529 |
| FXYD1 | LRRC8A | Q8IWT6 | 518 |
| FXYD1 | FLOT2 | Q14254 | 518 |
| FXYD1 | GAMT | Q14353 | 504 |
| FXYD1 | CACNA1C | Q13936 | 487 |
| FXYD1 | CLDND1 | Q9NY35 | 483 |
IntAct
6 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| FXYD1 | GCHFR | psi-mi:“MI:0914”(association) | 0.530 |
| ATP1A1 | FXYD1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| FXYD1 | SPINK4 | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (25): FXYD1 (Synthetic Growth Defect), NDRG1 (Affinity Capture-MS), NDRG3 (Affinity Capture-MS), NDRG4 (Affinity Capture-MS), THNSL1 (Affinity Capture-MS), GCHFR (Affinity Capture-MS), ATP6V1D (Affinity Capture-MS), GOPC (Affinity Capture-MS), FAM204A (Affinity Capture-MS), PRTFDC1 (Affinity Capture-MS), POLE4 (Affinity Capture-MS), FXYD1 (Reconstituted Complex), FXYD1 (Affinity Capture-Western), FXYD1 (Affinity Capture-Western), FXYD1 (Affinity Capture-Western)
ESM2 similar proteins: A0A1B0GST9, A0A1B0GTU2, A0A1B0GV90, A0A590UK83, A2RRL7, A7S641, A8WG88, A9JTJ0, B9X187, K7EJ46, O00168, O08589, O13001, P0C2S0, P15383, P41237, P56513, P60606, P63160, P63161, Q04645, Q04646, Q04679, Q04680, Q0P467, Q28EH9, Q3SZX0, Q3UJ81, Q3URE8, Q3ZBP2, Q4LDR2, Q4R6L9, Q502I1, Q592E4, Q5XF36, Q6AXF6, Q6NWH5, Q6PBK8, Q6Q3F5, Q71RC9
Diamond homologs: G1TZA0, I3LMB3, O00168, O08589, O13001, O97797, P54710, P56513, P58549, P58550, P59645, P59646, P59647, P59648, P59649, Q04645, Q04646, Q04679, Q04680, Q14802, Q3MHZ5, Q3SZX0, Q3ZBJ3, Q4R566, Q5RB29, Q61835, Q63113, Q91XV6, Q96DB9, Q9D164, Q9D2W0, Q9H0Q3, Q9Z239, W5P3P0, P97808, C0HJJ0
SIGNOR signaling
3 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| PRKACA | unknown | FXYD1 | phosphorylation |
| PRKACA | “up-regulates activity” | FXYD1 | phosphorylation |
Disease & clinical
Clinical variants and AI predictions
ClinVar
24 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 9 |
| Likely benign | 0 |
| Benign | 0 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
877 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 19:35141108:C:G | acceptor_gain | 1.0000 |
| 19:35141115:T:TA | acceptor_gain | 1.0000 |
| 19:35141120:T:TA | acceptor_gain | 1.0000 |
| 19:35141123:T:TA | acceptor_gain | 1.0000 |
| 19:35141127:CACAG:C | acceptor_loss | 1.0000 |
| 19:35141128:ACAGA:A | acceptor_loss | 1.0000 |
| 19:35141129:C:G | acceptor_gain | 1.0000 |
| 19:35141130:A:AG | acceptor_gain | 1.0000 |
| 19:35141131:G:GG | acceptor_gain | 1.0000 |
| 19:35141131:GAC:G | acceptor_gain | 1.0000 |
| 19:35141202:GC:G | donor_gain | 1.0000 |
| 19:35141202:GCTGA:G | donor_gain | 1.0000 |
| 19:35141203:C:G | donor_gain | 1.0000 |
| 19:35141204:TGA:T | donor_gain | 1.0000 |
| 19:35141205:GA:G | donor_gain | 1.0000 |
| 19:35141205:GAG:G | donor_gain | 1.0000 |
| 19:35141206:AG:A | donor_loss | 1.0000 |
| 19:35141207:G:GG | donor_gain | 1.0000 |
| 19:35141207:GT:G | donor_loss | 1.0000 |
| 19:35141527:C:CA | acceptor_gain | 1.0000 |
| 19:35141569:AGAGG:A | donor_loss | 1.0000 |
| 19:35141570:GAG:G | donor_gain | 1.0000 |
| 19:35141571:AGG:A | donor_loss | 1.0000 |
| 19:35141572:GGTAA:G | donor_loss | 1.0000 |
| 19:35141573:G:GG | donor_gain | 1.0000 |
| 19:35141573:GT:G | donor_loss | 1.0000 |
| 19:35141574:T:A | donor_loss | 1.0000 |
| 19:35142469:CAG:C | acceptor_loss | 1.0000 |
| 19:35142470:A:AG | acceptor_gain | 1.0000 |
| 19:35142470:A:AT | acceptor_loss | 1.0000 |
AlphaMissense
0 scored. Top likely-pathogenic:
dbSNP variants (sampled 300 via entrez): RS1000616306 (19:35135412 G>A,T), RS1000911485 (19:35135368 T>C), RS1001085235 (19:35139624 G>A), RS1001348082 (19:35138281 A>G), RS1002076313 (19:35139484 C>T), RS1002086088 (19:35139665 G>A,C), RS1002736826 (19:35142857 G>A), RS1003374188 (19:35141419 T>C,G), RS1003439478 (19:35135950 C>T), RS1004693570 (19:35135581 G>T), RS1004874934 (19:35142753 A>G), RS1005416447 (19:35136316 C>G,T), RS1006354791 (19:35143523 T>C), RS1006707278 (19:35138170 T>TA), RS1006888990 (19:35139858 G>A,C,T)
Disease associations
OMIM: gene MIM:602359 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
0 associations (top):
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
GtoPdb / IUPHAR curated pharmacology
(IUPHAR/BPS Guide to Pharmacology — expert-curated)
Target class: transporter — Na+/K+-ATPases
CTD chemical–gene interactions
26 total (human), top 26 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Cyclosporine | decreases expression | 3 |
| bisphenol A | affects expression, affects cotreatment, increases methylation | 2 |
| Acetaminophen | decreases expression, increases expression | 2 |
| Benzo(a)pyrene | decreases expression | 2 |
| Estradiol | decreases expression | 2 |
| Valproic Acid | decreases expression, increases expression, increases methylation | 2 |
| ethyl-p-hydroxybenzoate | decreases expression | 1 |
| Sunitinib | decreases expression | 1 |
| Fulvestrant | affects cotreatment, increases methylation | 1 |
| Allergens | decreases expression, affects cotreatment, increases abundance | 1 |
| Amiodarone | increases expression | 1 |
| Ampicillin | increases expression | 1 |
| Vehicle Emissions | affects cotreatment, decreases expression, increases abundance | 1 |
| Caffeine | decreases phosphorylation | 1 |
| Doxorubicin | affects expression | 1 |
| Lead | affects expression | 1 |
| Nickel | decreases expression | 1 |
| Quercetin | affects expression | 1 |
| Triclosan | decreases expression | 1 |
| Urethane | decreases expression | 1 |
| Oxyquinoline | increases expression | 1 |
| Aflatoxin B1 | decreases expression | 1 |
| Asbestos, Crocidolite | decreases methylation | 1 |
| Asbestos, Amosite | decreases methylation | 1 |
| Copper Sulfate | decreases expression | 1 |
| Particulate Matter | affects cotreatment, decreases expression, increases abundance | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.