SMC1A
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Also known as DXS423EKIAA0178SB1.8Smcb
Summary
SMC1A (structural maintenance of chromosomes 1A, HGNC:11111) is a protein-coding gene on chromosome Xp11.22, encoding Structural maintenance of chromosomes protein 1A (Q14683). Involved in chromosome cohesion during cell cycle and in DNA repair. It is a common-essential gene (DepMap: required in 98.9% of cancer cell lines) and haploinsufficient (ClinGen: sufficient evidence).
Proper cohesion of sister chromatids is a prerequisite for the correct segregation of chromosomes during cell division. The cohesin multiprotein complex is required for sister chromatid cohesion. This complex is composed partly of two structural maintenance of chromosomes (SMC) proteins, SMC3 and either SMC1B or the protein encoded by this gene. Most of the cohesin complexes dissociate from the chromosomes before mitosis, although those complexes at the kinetochore remain. Therefore, the encoded protein is thought to be an important part of functional kinetochores. In addition, this protein interacts with BRCA1 and is phosphorylated by ATM, indicating a potential role for this protein in DNA repair. This gene, which belongs to the SMC gene family, is located in an area of the X-chromosome that escapes X inactivation. Mutations in this gene result in Cornelia de Lange syndrome. Alternative splicing results in multiple transcript variants encoding different isoforms.
Source: NCBI Gene 8243 — RefSeq curated summary.
At a glance
- Gene–disease (curated): X-linked complex neurodevelopmental disorder (Definitive, ClinGen) — +4 more curated relationships
- GWAS associations: 2
- Clinical variants (ClinVar): 1,210 total — 130 pathogenic, 77 likely-pathogenic
- Phenotypes (HPO): 248
- Druggable target: yes — 2 molecules with ChEMBL bioactivity
- Cancer driver (intOGen): activating (oncogene-like) across 1 cancer types
- Cancer dependency (DepMap): dependent in 98.9% of screened cell lines (common-essential)
- Dosage sensitivity (ClinGen): haploinsufficiency sufficient evidence, triplosensitivity no evidence
- MANE Select transcript:
NM_006306
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:11111 |
| Approved symbol | SMC1A |
| Name | structural maintenance of chromosomes 1A |
| Location | Xp11.22 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | DXS423E, KIAA0178, SB1.8, Smcb |
| Ensembl gene | ENSG00000072501 |
| Ensembl biotype | protein_coding |
| OMIM | 300040 |
| Entrez | 8243 |
Gene structure
Transcript identifiers
Ensembl transcripts: 10 — 7 protein_coding, 2 retained_intron, 1 nonsense_mediated_decay
ENST00000322213, ENST00000375340, ENST00000463684, ENST00000469129, ENST00000470241, ENST00000674590, ENST00000675065, ENST00000675504, ENST00000947776, ENST00000947777
RefSeq mRNA: 2 — MANE Select: NM_006306
NM_001281463, NM_006306
CCDS: CCDS14352, CCDS75985
Canonical transcript exons
ENST00000322213 — 25 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000671349 | 53414981 | 53415169 |
| ENSE00000671350 | 53414758 | 53414870 |
| ENSE00001095076 | 53374149 | 53380186 |
| ENSE00001632840 | 53396472 | 53396617 |
| ENSE00001642196 | 53405771 | 53405956 |
| ENSE00001655824 | 53411761 | 53411901 |
| ENSE00001683252 | 53409062 | 53409269 |
| ENSE00001710159 | 53405245 | 53405391 |
| ENSE00001720507 | 53380620 | 53380730 |
| ENSE00001729089 | 53381018 | 53381087 |
| ENSE00001736172 | 53399589 | 53399730 |
| ENSE00001753597 | 53396227 | 53396380 |
| ENSE00001780772 | 53403777 | 53403893 |
| ENSE00001781699 | 53409421 | 53409503 |
| ENSE00001798824 | 53403566 | 53403672 |
| ENSE00001799334 | 53405493 | 53405672 |
| ENSE00001800349 | 53405012 | 53405149 |
| ENSE00001914377 | 53422492 | 53422654 |
| ENSE00003491335 | 53413232 | 53413435 |
| ENSE00003657098 | 53411995 | 53412253 |
| ENSE00003706023 | 53382232 | 53382383 |
| ENSE00003708392 | 53382506 | 53382660 |
| ENSE00003709779 | 53383097 | 53383253 |
| ENSE00003711269 | 53394778 | 53394888 |
| ENSE00003791370 | 53412900 | 53413138 |
Expression profiles
Bgee: expression breadth ubiquitous, 289 present calls, max score 98.13.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 40.3607 / max 459.3157, expressed in 1815 samples.
FANTOM5 promoters (3 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 199346 | 39.5577 | 1814 |
| 199345 | 0.4767 | 304 |
| 199344 | 0.3263 | 183 |
Top tissues by expression
294 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| sural nerve | UBERON:0015488 | 98.13 | gold quality |
| trabecular bone tissue | UBERON:0002483 | 95.43 | gold quality |
| embryo | UBERON:0000922 | 95.20 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 95.19 | gold quality |
| jejunal mucosa | UBERON:0000399 | 94.94 | gold quality |
| germinal epithelium of ovary | UBERON:0001304 | 94.92 | gold quality |
| ventricular zone | UBERON:0003053 | 94.86 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 94.78 | gold quality |
| tibia | UBERON:0000979 | 94.53 | gold quality |
| calcaneal tendon | UBERON:0003701 | 94.32 | gold quality |
| vermiform appendix | UBERON:0001154 | 94.27 | gold quality |
| tendon | UBERON:0000043 | 94.19 | gold quality |
| thymus | UBERON:0002370 | 94.18 | gold quality |
| ganglionic eminence | UBERON:0004023 | 94.17 | gold quality |
| caecum | UBERON:0001153 | 94.04 | gold quality |
| pigmented layer of retina | UBERON:0001782 | 94.00 | gold quality |
| bone marrow cell | CL:0002092 | 93.76 | gold quality |
| stromal cell of endometrium | CL:0002255 | 93.75 | gold quality |
| colonic mucosa | UBERON:0000317 | 93.71 | gold quality |
| endometrium epithelium | UBERON:0004811 | 93.69 | gold quality |
| gingiva | UBERON:0001828 | 93.48 | gold quality |
| bronchial epithelial cell | CL:0002328 | 93.44 | gold quality |
| gingival epithelium | UBERON:0001949 | 93.43 | gold quality |
| mammary duct | UBERON:0001765 | 93.34 | gold quality |
| parietal pleura | UBERON:0002400 | 93.13 | gold quality |
| oral cavity | UBERON:0000167 | 93.12 | gold quality |
| skin of hip | UBERON:0001554 | 93.03 | gold quality |
| superficial temporal artery | UBERON:0001614 | 92.98 | gold quality |
| epithelium of mammary gland | UBERON:0003244 | 92.95 | gold quality |
| choroid plexus epithelium | UBERON:0003911 | 92.75 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 6.70 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): E2F6, EZH2
miRNA regulators (miRDB)
136 targeting SMC1A, 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-513A-5P | 100.00 | 69.77 | 2465 |
| HSA-MIR-6867-5P | 100.00 | 82.21 | 3464 |
| HSA-MIR-4795-3P | 100.00 | 74.62 | 4024 |
| HSA-MIR-8485 | 100.00 | 77.57 | 4731 |
| HSA-MIR-4776-3P | 100.00 | 68.73 | 1340 |
| HSA-MIR-126-5P | 100.00 | 72.71 | 3180 |
| HSA-MIR-4747-5P | 100.00 | 67.90 | 2681 |
| HSA-MIR-5196-5P | 100.00 | 67.98 | 2761 |
| HSA-MIR-3134 | 100.00 | 66.43 | 777 |
| HSA-MIR-4713-3P | 100.00 | 65.92 | 505 |
| HSA-MIR-4500 | 99.99 | 72.72 | 2367 |
| HSA-MIR-371B-5P | 99.99 | 75.34 | 4759 |
| HSA-LET-7A-5P | 99.98 | 72.29 | 1790 |
| HSA-LET-7B-5P | 99.98 | 72.31 | 1790 |
| HSA-LET-7C-5P | 99.98 | 72.29 | 1790 |
| HSA-LET-7E-5P | 99.98 | 72.29 | 1790 |
| HSA-LET-7F-5P | 99.98 | 72.56 | 1784 |
| HSA-LET-7G-5P | 99.98 | 72.37 | 1784 |
| HSA-LET-7I-5P | 99.98 | 72.37 | 1788 |
| HSA-MIR-98-5P | 99.98 | 72.33 | 1787 |
| HSA-MIR-373-5P | 99.98 | 75.36 | 4753 |
| HSA-MIR-616-5P | 99.98 | 75.58 | 4775 |
| HSA-MIR-1185-1-3P | 99.98 | 71.04 | 2593 |
| HSA-MIR-1185-2-3P | 99.98 | 71.04 | 2593 |
| HSA-LET-7F-2-3P | 99.98 | 70.98 | 2588 |
| HSA-MIR-485-3P | 99.98 | 70.68 | 1585 |
| HSA-MIR-539-3P | 99.98 | 70.74 | 1616 |
| HSA-MIR-507 | 99.97 | 70.11 | 1915 |
| HSA-LET-7D-5P | 99.96 | 71.76 | 1632 |
| HSA-MIR-4458 | 99.96 | 71.64 | 1650 |
Functional genomics
ClinGen dosage: haploinsufficiency 3 (sufficient evidence), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map
DepMap (CRISPR cell-line fitness): dependent in 98.9% of screened cell lines, common-essential.
Literature-anchored findings (GeneRIF, showing 40)
- This protein is localized at the kinetochores and is involved in cell division. (PMID:12199140)
- Inhibition of SMC1 is associated with chromosomal aberrations (PMID:15640246)
- RPGR-ORF15, which is mutated in retinitis pigmentosa, associates with SMC1. (PMID:16043481)
- Replication timing of FRA3B in G2 was studied by bromodeoxyuridine (BrdU) labeling by a fluorescence in situ hybridization (FISH)-based approach through the analysis of clones spanning the FRA3B region. (PMID:16242161)
- mutations in SMC1L1 (also known as SMC1), which encodes a different subunit of the cohesin complex, are responsible for Cornelia de Lange syndrome in three male members of an affected family and in one sporadic case (PMID:16604071)
- SMC1 binding represses OARE [OA (okadaic acid) response element] activity and its dissociation allows the recruitment of CAR(constitutive active/androstane receptor) to the OARE, synergizing the expression of the CYP2B6 gene. (PMID:16623664)
- nuclear exclusion is important to prevent cohesin cleavage during interphase in the absence of securin and the phosphorylation inhibition (PMID:17102637)
- So far, two genes (NIPBL and SMC1L1) have been identified causing Cornelia de Lange syndrome (CdLS) or CdLS-like phenotypes. (PMID:17106445)
- Mutations in SMC1A cause a mild variant of cornelia de Lange syndrome with predominant mental retardation (PMID:17273969)
- The S-phase checkpoint, regulated by the ATM-p95/NBS1-SMC1 pathway, was also triggered in hypoxia/reoxygenation-exposed lymphocytes. (PMID:17544403)
- identified as one of five genes containing 11 somatic mutations in a panel that included 132 colorectal cancers, then demonstrated that down-regulation of such homologs resulted in chromosomal instability and chromatid cohesion defects in human cells (PMID:18299561)
- ATM plays a fundamental role in promoting the radiation-induced interaction of NBS1 with SMC1 in the presence of BRCA1, leading to the maintenance of chromosomal integrity. (PMID:18763866)
- SMC1 is recruited to microtubule-bound RNA export factor 1 (Rae1) at the mitotic spindle pole. (PMID:18832153)
- Cornelia de Lange syndrome mutations in SMC1A or SMC3 bind to DNA with higher affinity and display genomic instability. (PMID:18996922)
- This study identified duplications Cornelia de Lange syndrome (CdLS) on chromosomes 5 or X using genome wide array comparative genomic hybridisation (aCGH). The duplicated regions contain either the NIPBL or the SMC1A genes. (PMID:19052029)
- SMC1, a substrate of ATM, could not be phosphorylated at the DNA damage sites in the absence of PTIP (PMID:19414588)
- Transcription in severely affected Cornelia de Lange Syndrome probands has identified a unique profile of dysregulated gene expression that correlates with phenotypic severity and SMC1A binding analysis demonstrates a preference for intergenic regions. (PMID:19468298)
- results suggest that mechanistically SMC1A-related Cornelia de Lange Syndrome is not due to altered levels of the SMC1A transcript, but rather that the mutant proteins maintain a residual function in males and enact a dominant negative effect in females. (PMID:19701948)
- Interaction between Rae1 and cohesin subunit SMC1 is required for proper spindle formation. (PMID:20016259)
- The identification of 14 additional mutations of the cohesin complex genes NIPBL and SMC1A in a cohort of 30 unrelated patients with Cornelia de Lange syndrome, is reported. (PMID:20358602)
- Low SMC1A expression predicts poor survival in acute myeloid leukemia. (PMID:20514443)
- SMC1A missense mutation is associated with Cornelia de Lange syndrome. (PMID:20635401)
- phosphorylation of SMC1 is required for an increased mobility after DNA damage in G2-phase cells, suggesting that ATM-dependent phosphorylation facilitates mobilization of the cohesin complex after DNA damage (PMID:21056556)
- phosphorylation of Rad50 plays a key regulatory role as an adaptor for specific ATM-dependent downstream signaling through SMC1 for DNA repair and cell cycle checkpoint control in the maintenance of genome integrity. (PMID:21757780)
- NIPBL, SMC1A, and SMC3 mutation-positive patients were equally likely to have congenital heart diseases in Cornelia de lange syndrome. (PMID:22965847)
- c-MYC down-regulation caused by cohesin mutations in SMC1A and SMC3 genes may be an early/primary event in the pathogenesis of Cornelia de Lange syndrome. (PMID:23106691)
- These results suggest that SMC1A upregulation is involved in the pathogenesis of glioma. (PMID:23638217)
- Clinical comparison between our patient with a previously reported individual with a SMC1A duplication and four male carriers of similar sSMC reported in databases, suggest that they all share clinical features related to cohesinopathies (PMID:23683030)
- studies report for the first time that SMC1 is overexpressed in TNBC cells where it plays a role in cell migration and drug sensitivity, and thus provides a potential therapeutic target for this highly invasive breast cancer subtype (PMID:23717600)
- Inhibiting SMC1A expression efficiently (P < 0.001) resulted in inhibiting the proliferation and colony formation of U251 and U87MG glioblastoma cells. (PMID:23754617)
- Human SMC3 knock-down rendered SMC1 instable without cytoplasmic accumulation. (PMID:23776448)
- The mutation c.1731G>A/p.E577E in our patient expands the mutational spectrum of SMC1A to splice site mutations and also represents the first exonic synonymous splice site mutation observed in any human cohesinopathy (PMID:23863341)
- Our clinical and molecular findings expand the total number of characterized SMC1A-mutated patients (from 44 to 52) and the restricted repertoire of SMC1A mutations (from 29 to 34), contributing to the molecular and clinical signature of SMC1A-based CdLS. (PMID:24124034)
- A dominant negative effect is considered the pathogenic mechanism in SMC1A-defective female patients, the level of allelic preferential expression might be one of the factors contributing to the wide phenotypic variability observed in these patients. (PMID:24756084)
- The SMC1a mutation leads to chromosomal instability and tumorigenesis in early colorectal adenomas. (PMID:25080505)
- Our findings identify both SMC1 and CTCF as critical regulators of the differentiation-dependent life cycle of high-risk human papillomaviruses (PMID:25875106)
- Results show that SMC1A is overexpressed in colorectal cancer tissues and correlated with poor prognosis for late stage disease. (PMID:25884313)
- same down-regulation of cohesin targets is observed in SMC1A-mutated patient fibroblasts (PMID:26206533)
- Loss-of-function mutations of SMC1A may be associated with early-onset encephalopathy with epilepsy. (PMID:26358754)
- two novel de novo heterozygous frameshift mutations in the SMC1A gene were identified in two patients with developmental delay and epilepsy. (PMID:26386245)
Cross-species orthologs
6 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | smc1a | ENSDARG00000055754 |
| danio_rerio | smc1al | ENSDARG00000058203 |
| mus_musculus | Smc1a | ENSMUSG00000041133 |
| rattus_norvegicus | Smc1a | ENSRNOG00000003139 |
| caenorhabditis_elegans | WBGENE00012198 | |
| caenorhabditis_elegans | WBGENE00019087 |
Paralogs (7): SMC1B (ENSG00000077935), SMC3 (ENSG00000108055), SMC4 (ENSG00000113810), CKAP4 (ENSG00000136026), SMC2 (ENSG00000136824), CCDC122 (ENSG00000151773), CCDC157 (ENSG00000187860)
Protein
Protein identifiers
Structural maintenance of chromosomes protein 1A — Q14683 (reviewed: Q14683)
Alternative names: Sb1.8
All UniProt accessions (6): Q14683, A0A384MR33, A0A6Q8PHC3, G8JLG1, V9GY57, V9GYN9
UniProt curated annotations — full annotation on UniProt →
Function. Involved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, or via its phosphorylation by ATR. Works as a downstream effector both in the ATM/NBS1 branch and in the ATR/MSH2 branch of S-phase checkpoint.
Subunit / interactions. Forms a heterodimer with SMC3 in cohesin complexes. Cohesin complexes are composed of the SMC1 (SMC1A or SMC1B) and SMC3 heterodimer attached via their SMC hinge domain, RAD21 which link them, and one STAG protein (STAG1, STAG2 or STAG3), which interacts with RAD21. In germ cell cohesin complexes, SMC1A is mutually exclusive with SMC1B. Interacts with BRCA1. Found in a complex with CDCA5, SMC3 and RAD21, PDS5A/SCC-112 and PDS5B/APRIN. Interacts with NDC80. Interacts with BRAT1. Found in a complex containing POLE and SMC3. Interacts with RPGR, STAG3 and SYCP2. The cohesin complex interacts with the cohesin loading complex subunits NIPBL/Scc2 (via HEAT repeats) and MAU2/Scc4. NIPBL directly contacts all members of the complex, RAD21, SMC1A/B, SMC3 and STAG1.
Subcellular location. Nucleus. Chromosome. Centromere. Kinetochore.
Post-translational modifications. Ubiquitinated by the DCX(DCAF15) complex, leading to its degradation. Phosphorylated by ATM upon ionizing radiation in a NBS1-dependent manner. Phosphorylated by ATR upon DNA methylation in a MSH2/MSH6-dependent manner. Phosphorylation of Ser-957 and Ser-966 activates it and is required for S-phase checkpoint activation.
Disease relevance. Cornelia de Lange syndrome 2 (CDLS2) [MIM:300590] A form of Cornelia de Lange syndrome, a clinically heterogeneous developmental disorder associated with malformations affecting multiple systems. Characterized by facial dysmorphisms, abnormal hands and feet, growth delay, cognitive retardation, hirsutism, gastroesophageal dysfunction and cardiac, ophthalmologic and genitourinary anomalies. The disease is caused by variants affecting the gene represented in this entry. Developmental and epileptic encephalopathy 85 with or without midline brain defects (DEE85) [MIM:301044] An X-linked form of epileptic encephalopathy, a heterogeneous group of severe early-onset epilepsies characterized by refractory seizures, neurodevelopmental impairment, and poor prognosis. Development is normal prior to seizure onset, after which cognitive and motor delays become apparent. DEE85 is characterized by onset of severe refractory seizures in the first year of life, global developmental delay with impaired intellectual development and poor or absent speech, and dysmorphic facial features. Many patients have midline brain defects on brain imaging. The disease is caused by variants affecting the gene represented in this entry.
Domain organisation. The flexible SMC hinge domain, which separates the large intramolecular coiled coil regions, allows the heterotypic interaction with the corresponding domain of SMC3, forming a V-shaped heterodimer. The two heads of the heterodimer are then connected by different ends of the cleavable RAD21 protein, forming a ring structure.
Miscellaneous. Mutated Cornelia de Lange cell lines display genomic instability and sensitivity to ionizing radiation and interstrand cross-linking agents.
Similarity. Belongs to the SMC family. SMC1 subfamily.
RefSeq proteins (2): NP_001268392, NP_006297* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR003395 | RecF/RecN/SMC_N | Domain |
| IPR010935 | SMC_hinge | Domain |
| IPR024704 | SMC | Family |
| IPR027417 | P-loop_NTPase | Homologous_superfamily |
| IPR028468 | Smc1_ABC | Domain |
| IPR036277 | SMC_hinge_sf | Homologous_superfamily |
Pfam: PF02463, PF06470
UniProt features (128 total): sequence variant 37, helix 34, strand 28, modified residue 9, turn 5, coiled-coil region 4, region of interest 3, compositionally biased region 2, mutagenesis site 2, chain 1, domain 1, binding site 1, sequence conflict 1
Structure
Experimental structures (PDB)
18 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 8ROE | X-RAY DIFFRACTION | 1.36 |
| 8ROD | X-RAY DIFFRACTION | 1.5 |
| 8ROF | X-RAY DIFFRACTION | 1.65 |
| 8RO9 | X-RAY DIFFRACTION | 1.77 |
| 8ROC | X-RAY DIFFRACTION | 1.85 |
| 8RO8 | X-RAY DIFFRACTION | 1.9 |
| 8ROG | X-RAY DIFFRACTION | 1.94 |
| 8RO7 | X-RAY DIFFRACTION | 2.09 |
| 8RO6 | X-RAY DIFFRACTION | 2.2 |
| 6WG4 | X-RAY DIFFRACTION | 2.31 |
| 8ROA | X-RAY DIFFRACTION | 2.44 |
| 8ROB | X-RAY DIFFRACTION | 2.5 |
| 6WG6 | X-RAY DIFFRACTION | 3.54 |
| 8P0A | ELECTRON MICROSCOPY | 3.67 |
| 6WGE | ELECTRON MICROSCOPY | 3.9 |
| 8PQ5 | ELECTRON MICROSCOPY | 4.4 |
| 6WG3 | ELECTRON MICROSCOPY | 5.3 |
| 7W1M | ELECTRON MICROSCOPY | 6.5 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q14683-F1 | 83.02 | 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 (1): 32–39
Post-translational modifications (9): 358, 360, 648, 713, 957, 962, 966, 970, 1037
Mutagenesis-validated functional residues (2):
| Position | Phenotype |
|---|---|
| 957 | reduces phosphorylation and the s-phase checkpoint activation. abolishes s-phase activation; when associated with a-966. |
| 966 | reduces phosphorylation and the s-phase checkpoint activation. increases sensitivity to dna methylation. abolishes s-pha |
Function
Pathways and Gene Ontology
Reactome pathways
24 pathways
| ID | Pathway |
|---|---|
| R-HSA-1221632 | Meiotic synapsis |
| R-HSA-2467813 | Separation of Sister Chromatids |
| R-HSA-2468052 | Establishment of Sister Chromatid Cohesion |
| R-HSA-2470946 | Cohesin Loading onto Chromatin |
| R-HSA-2500257 | Resolution of Sister Chromatid Cohesion |
| R-HSA-3108214 | SUMOylation of DNA damage response and repair proteins |
| R-HSA-9018519 | Estrogen-dependent gene expression |
| R-HSA-1474165 | Reproduction |
| R-HSA-1500620 | Meiosis |
| R-HSA-162582 | Signal Transduction |
| R-HSA-1640170 | Cell Cycle |
| R-HSA-2555396 | Mitotic Metaphase and Anaphase |
| R-HSA-2990846 | SUMOylation |
| R-HSA-3108232 | SUMO E3 ligases SUMOylate target proteins |
| R-HSA-392499 | Metabolism of proteins |
| R-HSA-597592 | Post-translational protein modification |
| R-HSA-68877 | Mitotic Prometaphase |
| R-HSA-68882 | Mitotic Anaphase |
| R-HSA-68884 | Mitotic Telophase/Cytokinesis |
| R-HSA-68886 | M Phase |
| R-HSA-69242 | S Phase |
| R-HSA-69278 | Cell Cycle, Mitotic |
| R-HSA-8939211 | ESR-mediated signaling |
| R-HSA-9006931 | Signaling by Nuclear Receptors |
MSigDB gene sets: 779 (showing top):
E2F_Q4, GOBP_CHROMOSOME_ORGANIZATION, E2F_Q4_01, BORCZUK_MALIGNANT_MESOTHELIOMA_UP, AAGCAAT_MIR137, MORF_SMC1L1, E2F4DP1_01, REACTOME_MEIOTIC_SYNAPSIS, GOBP_CELLULAR_RESPONSE_TO_BIOTIC_STIMULUS, MATTIOLI_MGUS_VS_PCL, AAGCCAT_MIR135A_MIR135B, MORF_RRM1, MORF_HDAC1, THEILGAARD_NEUTROPHIL_AT_SKIN_WOUND_DN, GNF2_MCM5
GO Biological Process (14): mitotic sister chromatid segregation (GO:0000070), DNA repair (GO:0006281), sister chromatid cohesion (GO:0007062), mitotic sister chromatid cohesion (GO:0007064), response to radiation (GO:0009314), establishment of mitotic sister chromatid cohesion (GO:0034087), establishment of meiotic sister chromatid cohesion (GO:0034089), somatic stem cell population maintenance (GO:0035019), cell division (GO:0051301), meiotic cell cycle (GO:0051321), response to DNA damage checkpoint signaling (GO:0072423), mitotic spindle assembly (GO:0090307), DNA damage response (GO:0006974), chromosome organization (GO:0051276)
GO Molecular Function (9): DNA binding (GO:0003677), chromatin binding (GO:0003682), RNA binding (GO:0003723), ATP binding (GO:0005524), ATP hydrolysis activity (GO:0016887), mediator complex binding (GO:0036033), protein heterodimerization activity (GO:0046982), nucleotide binding (GO:0000166), protein binding (GO:0005515)
GO Cellular Component (13): chromosome, centromeric region (GO:0000775), kinetochore (GO:0000776), condensed nuclear chromosome (GO:0000794), nucleus (GO:0005634), nucleoplasm (GO:0005654), chromosome (GO:0005694), cytosol (GO:0005829), cohesin complex (GO:0008278), nuclear matrix (GO:0016363), mitotic cohesin complex (GO:0030892), meiotic cohesin complex (GO:0030893), mitotic spindle pole (GO:0097431), nuclear lumen (GO:0031981)
Reactome top-level categories
Rollup of top-15 pathways:
| Category | Pathways |
|---|---|
| M Phase | 3 |
| Meiosis | 1 |
| Mitotic Anaphase | 1 |
| S Phase | 1 |
| Mitotic Telophase/Cytokinesis | 1 |
| Mitotic Prometaphase | 1 |
| SUMO E3 ligases SUMOylate target proteins | 1 |
| ESR-mediated signaling | 1 |
| Reproduction | 1 |
| Cell Cycle | 1 |
| Post-translational protein modification | 1 |
| SUMOylation | 1 |
| Metabolism of proteins | 1 |
| Mitotic Metaphase and Anaphase | 1 |
| Cell Cycle, Mitotic | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cellular anatomical structure | 3 |
| mitotic nuclear division | 2 |
| mitotic cell cycle process | 2 |
| establishment of sister chromatid cohesion | 2 |
| nucleic acid binding | 2 |
| binding | 2 |
| intracellular membraneless organelle | 2 |
| nucleus | 2 |
| nuclear lumen | 2 |
| cohesin complex | 2 |
| sister chromatid segregation | 1 |
| DNA metabolic process | 1 |
| DNA damage response | 1 |
| cell cycle process | 1 |
| chromosome organization | 1 |
| sister chromatid cohesion | 1 |
| response to abiotic stimulus | 1 |
| mitotic cell cycle | 1 |
| mitotic sister chromatid cohesion | 1 |
| meiotic sister chromatid cohesion | 1 |
| stem cell population maintenance | 1 |
| cellular process | 1 |
| cell cycle | 1 |
| sexual reproduction | 1 |
| reproductive process | 1 |
| meiotic nuclear division | 1 |
| response to DNA integrity checkpoint signaling | 1 |
| mitotic sister chromatid segregation | 1 |
| mitotic spindle organization | 1 |
| spindle assembly | 1 |
| cellular response to stress | 1 |
| organelle organization | 1 |
| adenyl ribonucleotide binding | 1 |
| purine ribonucleoside triphosphate binding | 1 |
| ribonucleoside triphosphate phosphatase activity | 1 |
| ATP-dependent activity | 1 |
| protein-containing complex binding | 1 |
| protein dimerization activity | 1 |
| nucleoside phosphate binding | 1 |
| heterocyclic compound binding | 1 |
Protein interactions and networks
STRING
4260 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| SMC1A | RAD21 | O60216 | 999 |
| SMC1A | NIPBL | Q6KC79 | 998 |
| SMC1A | STAG2 | Q8N3U4 | 997 |
| SMC1A | STAG1 | Q8WVM7 | 996 |
| SMC1A | SMC3 | Q9UQE7 | 993 |
| SMC1A | STAG3 | Q9UJ98 | 991 |
| SMC1A | REC8 | O95072 | 955 |
| SMC1A | PDS5A | Q29RF7 | 953 |
| SMC1A | RAD21L1 | Q9H4I0 | 937 |
| SMC1A | CTCF | P49711 | 914 |
| SMC1A | WAPL | Q7Z5K2 | 892 |
| SMC1A | PDS5B | Q9NTI5 | 852 |
| SMC1A | MDC1 | Q14676 | 816 |
| SMC1A | HDAC8 | Q9BY41 | 797 |
| SMC1A | MRE11 | P49959 | 775 |
IntAct
310 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| STAG2 | RAD21 | psi-mi:“MI:0914”(association) | 0.970 |
| SMC3 | RAD21 | psi-mi:“MI:0914”(association) | 0.960 |
| SMC3 | RAD21 | psi-mi:“MI:0915”(physical association) | 0.960 |
| SMC1A | SMC3 | psi-mi:“MI:0915”(physical association) | 0.940 |
| SMC3 | SMC1A | psi-mi:“MI:0915”(physical association) | 0.940 |
| STAG1 | RAD21 | psi-mi:“MI:0914”(association) | 0.930 |
| RAD21 | SMC1A | psi-mi:“MI:0915”(physical association) | 0.930 |
| RAE1 | NUP98 | psi-mi:“MI:0914”(association) | 0.930 |
| SMC1A | RAD21 | psi-mi:“MI:0914”(association) | 0.930 |
| SMC1A | RAD21 | psi-mi:“MI:0915”(physical association) | 0.930 |
| RAD21 | SMC1A | psi-mi:“MI:0914”(association) | 0.930 |
| STAG1 | RAD21 | psi-mi:“MI:0915”(physical association) | 0.930 |
| SMC1A | STAG2 | psi-mi:“MI:0915”(physical association) | 0.920 |
| WAPL | RAD21 | psi-mi:“MI:0914”(association) | 0.910 |
| WAPL | RAD21 | psi-mi:“MI:0915”(physical association) | 0.910 |
BioGRID (676): SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Reconstituted Complex), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), SMC1A (Affinity Capture-MS), NDC80 (Co-fractionation), PDS5A (Co-fractionation)
ESM2 similar proteins: A2VDP1, A5D7M3, A8HUA1, B2RW38, D3Z8K2, E1BM70, E2R1I5, F1QNW4, O75150, O93308, O95995, O97593, P02562, P04462, P0CK98, P11778, P29616, P46824, P46825, Q0V9R4, Q14683, Q3U319, Q499U4, Q4R7K7, Q5DTM8, Q5R9B3, Q5RAU7, Q5T655, Q5VTR2, Q5ZLS3, Q60779, Q68CZ1, Q6DGZ3, Q7XJ96, Q7Z3E2, Q8BKE9, Q8BR07, Q8C9S4, Q8CG73, Q8CJB9
Diamond homologs: A3PMS2, B2FDA8, B8CW13, B8GZ28, B9E1H0, E1X022, O01789, O66878, O93308, O93309, O94383, O95347, O97593, O97594, P15016, P50533, P73340, P75361, P97690, P9WGF2, P9WGF3, Q09591, Q14683, Q1INB1, Q20060, Q24U48, Q3JR19, Q54LV0, Q552D9, Q59037, Q5H054, Q5R4K5, Q69GZ5, Q73VM3, Q8I1U7, Q8IED2, Q8NDV3, Q8TZY2, Q90988, Q920F6
SIGNOR signaling
5 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| ATM | up-regulates | SMC1A | phosphorylation |
| ATM | “up-regulates activity” | SMC1A | phosphorylation |
| SMC1A | “form complex” | “RAD21L Cohesin complex” | binding |
| SMC1A | “form complex” | “Cohesin complex” | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 175 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| S Phase | 10 | 14.1× | 2e-07 |
| Meiosis | 6 | 13.3× | 2e-04 |
| Activation of the pre-replicative complex | 5 | 12.7× | 1e-03 |
| G1/S Transition | 6 | 10.8× | 7e-04 |
| Resolution of Sister Chromatid Cohesion | 16 | 10.7× | 4e-10 |
| G2/M Checkpoints | 9 | 9.4× | 4e-05 |
| SUMOylation of DNA damage response and repair proteins | 8 | 9.1× | 1e-04 |
| Reproduction | 6 | 8.8× | 2e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| mitotic sister chromatid cohesion | 5 | 36.2× | 3e-05 |
| sister chromatid cohesion | 6 | 29.6× | 1e-05 |
| mitotic spindle assembly | 7 | 15.5× | 5e-05 |
| cellular response to xenobiotic stimulus | 8 | 12.4× | 4e-05 |
| centrosome cycle | 5 | 10.9× | 7e-03 |
| double-strand break repair | 8 | 10.5× | 1e-04 |
| protein autophosphorylation | 8 | 7.5× | 1e-03 |
| DNA replication | 7 | 7.5× | 3e-03 |
Disease & clinical
Cancer significance
From intOGen — cancer-driver classification: activating (oncogene-like) across 1 cancer types — AML.
Clinical variants and AI predictions
ClinVar
1210 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 130 |
| Likely pathogenic | 77 |
| Uncertain significance | 375 |
| Likely benign | 366 |
| Benign | 57 |
Top pathogenic / likely-pathogenic (30)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1068642 | NM_006306.4(SMC1A):c.3145C>T (p.Arg1049Ter) | Pathogenic |
| 1068693 | NM_006306.4(SMC1A):c.2842_2845dup (p.Asp949delinsGlyTer) | Pathogenic |
| 1069931 | NM_006306.4(SMC1A):c.10del (p.Phe3_Leu4insTer) | Pathogenic |
| 1069969 | NM_006306.4(SMC1A):c.2398C>T (p.Gln800Ter) | Pathogenic |
| 1072544 | NC_000023.10:g.(?53449431)(53449549_?)del | Pathogenic |
| 1074295 | NM_006306.4(SMC1A):c.2923C>T (p.Arg975Ter) | Pathogenic |
| 1075881 | NM_006306.4(SMC1A):c.481del (p.Ser161fs) | Pathogenic |
| 1076178 | NM_006306.4(SMC1A):c.586C>G (p.Arg196Gly) | Pathogenic |
| 1164033 | NM_006306.4(SMC1A):c.2341T>C (p.Cys781Arg) | Pathogenic |
| 1164034 | NM_006306.4(SMC1A):c.1171C>T (p.Gln391Ter) | Pathogenic |
| 11672 | NM_006306.4(SMC1A):c.2493_2495del (p.Asp831_Gln832delinsGlu) | Pathogenic |
| 11673 | NM_006306.4(SMC1A):c.1478A>C (p.Glu493Ala) | Pathogenic |
| 11674 | NM_006306.4(SMC1A):c.173_187del (p.Val58_Arg62del) | Pathogenic |
| 11675 | NM_006306.4(SMC1A):c.1487G>A (p.Arg496His) | Pathogenic |
| 1184942 | NM_006306.4(SMC1A):c.1813_1814del (p.Ile605fs) | Pathogenic |
| 1199214 | NM_006306.4(SMC1A):c.2039_2040del (p.Arg680fs) | Pathogenic |
| 1320145 | NM_006306.4(SMC1A):c.109+575dup | Pathogenic |
| 1323620 | NM_006306.4(SMC1A):c.2069del (p.Lys690fs) | Pathogenic |
| 1346682 | NM_006306.4(SMC1A):c.1607A>G (p.Lys536Arg) | Pathogenic |
| 1351039 | NM_006306.4(SMC1A):c.2437C>T (p.Gln813Ter) | Pathogenic |
| 1351269 | NM_006306.4(SMC1A):c.2173C>T (p.Arg725Ter) | Pathogenic |
| 1378122 | NM_006306.4(SMC1A):c.302del (p.Gly101fs) | Pathogenic |
| 1398517 | NM_006306.4(SMC1A):c.628C>T (p.Gln210Ter) | Pathogenic |
| 1418836 | NM_006306.4(SMC1A):c.2899C>T (p.Gln967Ter) | Pathogenic |
| 1419270 | NM_006306.4(SMC1A):c.286C>T (p.Arg96Cys) | Pathogenic |
| 1446827 | NM_006306.4(SMC1A):c.761del (p.Lys254fs) | Pathogenic |
| 1453732 | NM_006306.4(SMC1A):c.547_548del (p.Gln183fs) | Pathogenic |
| 1455114 | NM_006306.4(SMC1A):c.733_734del (p.Lys245fs) | Pathogenic |
| 1455891 | NM_006306.4(SMC1A):c.2132_2139del (p.Arg711fs) | Pathogenic |
| 1459972 | NC_000023.10:g.(?53430478)(53442138_?)del | Pathogenic |
SpliceAI
3196 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| X:53380099:A:AC | donor_gain | 1.0000 |
| X:53380100:C:CC | donor_gain | 1.0000 |
| X:53380614:CCCTA:C | donor_loss | 1.0000 |
| X:53380615:CCTA:C | donor_loss | 1.0000 |
| X:53380616:CTA:C | donor_loss | 1.0000 |
| X:53380617:TACC:T | donor_loss | 1.0000 |
| X:53380618:ACCTC:A | donor_loss | 1.0000 |
| X:53380619:C:CA | donor_loss | 1.0000 |
| X:53380619:CCT:C | donor_gain | 1.0000 |
| X:53380726:GCCAC:G | acceptor_gain | 1.0000 |
| X:53380727:CCAC:C | acceptor_gain | 1.0000 |
| X:53380727:CCACC:C | acceptor_gain | 1.0000 |
| X:53380728:CAC:C | acceptor_gain | 1.0000 |
| X:53380728:CACC:C | acceptor_gain | 1.0000 |
| X:53380729:AC:A | acceptor_gain | 1.0000 |
| X:53380730:CC:C | acceptor_gain | 1.0000 |
| X:53380731:C:CC | acceptor_gain | 1.0000 |
| X:53381014:CCAC:C | donor_loss | 1.0000 |
| X:53381015:CAC:C | donor_loss | 1.0000 |
| X:53381085:TAG:T | acceptor_gain | 1.0000 |
| X:53381088:C:CC | acceptor_gain | 1.0000 |
| X:53382226:CCTTA:C | donor_loss | 1.0000 |
| X:53382227:CTTAC:C | donor_loss | 1.0000 |
| X:53382228:TTA:T | donor_loss | 1.0000 |
| X:53382229:TAC:T | donor_loss | 1.0000 |
| X:53382230:A:AC | donor_gain | 1.0000 |
| X:53382230:A:AT | donor_loss | 1.0000 |
| X:53382231:C:A | donor_loss | 1.0000 |
| X:53382231:C:CC | donor_gain | 1.0000 |
| X:53382379:AATGC:A | acceptor_gain | 1.0000 |
AlphaMissense
8247 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| X:53380166:G:C | S1213R | 1.000 |
| X:53380166:G:T | S1213R | 1.000 |
| X:53380167:C:A | S1213I | 1.000 |
| X:53380168:T:G | S1213R | 1.000 |
| X:53380630:A:T | V1203D | 1.000 |
| X:53380633:C:T | G1202E | 1.000 |
| X:53380634:C:G | G1202R | 1.000 |
| X:53380634:C:T | G1202R | 1.000 |
| X:53380639:A:G | L1200P | 1.000 |
| X:53380668:C:A | K1190N | 1.000 |
| X:53380668:C:G | K1190N | 1.000 |
| X:53380672:A:G | L1189P | 1.000 |
| X:53380675:G:A | S1188F | 1.000 |
| X:53380675:G:T | S1188Y | 1.000 |
| X:53380676:A:G | S1188P | 1.000 |
| X:53380681:A:T | V1186D | 1.000 |
| X:53380727:C:G | A1171P | 1.000 |
| X:53381027:G:C | N1166K | 1.000 |
| X:53381027:G:T | N1166K | 1.000 |
| X:53381029:T:C | N1166D | 1.000 |
| X:53381036:A:C | D1163E | 1.000 |
| X:53381036:A:T | D1163E | 1.000 |
| X:53381037:T:A | D1163V | 1.000 |
| X:53381037:T:C | D1163G | 1.000 |
| X:53381037:T:G | D1163A | 1.000 |
| X:53381038:C:A | D1163Y | 1.000 |
| X:53381038:C:G | D1163H | 1.000 |
| X:53381038:C:T | D1163N | 1.000 |
| X:53381039:C:A | L1162F | 1.000 |
| X:53381039:C:G | L1162F | 1.000 |
dbSNP variants (sampled 300 via entrez): RS1000320526 (X:53419200 C>T), RS1000522033 (X:53378456 A>G), RS1001022445 (X:53408353 A>T), RS1001082215 (X:53419407 G>A), RS1001164920 (X:53377995 T>C), RS1001178868 (X:53383544 C>A,T), RS1001271237 (X:53397379 G>A), RS1001440015 (X:53392437 T>A), RS1001652226 (X:53402432 A>C), RS1001684337 (X:53413113 T>C), RS1001748769 (X:53423352 C>A), RS1001839274 (X:53382895 G>C), RS1001936226 (X:53401691 G>A,C), RS1002252438 (X:53421662 T>C), RS1002384123 (X:53399745 G>A,C,T)
Disease associations
OMIM: gene MIM:300040 | disease phenotypes: MIM:300590, MIM:301044, MIM:605130, MIM:122470, MIM:169300, MIM:309530
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| Cornelia de Lange syndrome 2 | Definitive | X-linked |
| developmental and epileptic encephalopathy, 85, with or without midline brain defects | Definitive | X-linked |
| Cornelia de Lange syndrome | Supportive | Autosomal dominant |
| atypical Rett syndrome | Supportive | Autosomal dominant |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| X-linked complex neurodevelopmental disorder | Definitive | XL |
Mondo (14): Cornelia de Lange syndrome 2 (MONDO:0010370), developmental and epileptic encephalopathy, 85, with or without midline brain defects (MONDO:0026771), congenital nervous system disorder (MONDO:0002320), microcephaly (MONDO:0001149), Wiedemann-Steiner syndrome (MONDO:0011518), intellectual disability (MONDO:0001071), atypical Rett syndrome (MONDO:0017746), Cornelia de Lange syndrome (MONDO:0016033), polyneuropathy (MONDO:0001824), pectus excavatum (MONDO:0008213), Cornelia de Lange syndrome 1 (MONDO:0007387), congenital heart disease (MONDO:0005453), X-linked complex neurodevelopmental disorder (MONDO:0100148), intellectual disability, X-linked 1 (MONDO:0010656)
Orphanet (6): Cornelia de Lange syndrome (Orphanet:199), Wiedemann-Steiner syndrome (Orphanet:319182), Atypical Rett syndrome (Orphanet:3095), X-linked non-syndromic intellectual disability (Orphanet:777), NON RARE IN EUROPE: Unexplained intellectual disability (Orphanet:319658), Severe intellectual disability-progressive postnatal microcephaly-midline stereotypic hand movements syndrome (Orphanet:397933)
HPO phenotypes
248 total (30 of 248 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000003 | Multicystic kidney dysplasia |
| HP:0000028 | Cryptorchidism |
| HP:0000047 | Hypospadias |
| HP:0000059 | Hypoplastic labia majora |
| HP:0000076 | Vesicoureteral reflux |
| HP:0000083 | Renal insufficiency |
| HP:0000119 | Abnormality of the genitourinary system |
| HP:0000130 | Abnormality of the uterus |
| HP:0000161 | Median cleft upper lip |
| HP:0000175 | Cleft palate |
| HP:0000193 | Bifid uvula |
| HP:0000218 | High palate |
| HP:0000219 | Thin upper lip vermilion |
| HP:0000233 | Thin vermilion border |
| HP:0000238 | Hydrocephalus |
| HP:0000248 | Brachycephaly |
| HP:0000252 | Microcephaly |
| HP:0000256 | Macrocephaly |
| HP:0000278 | Retrognathia |
| HP:0000294 | Low anterior hairline |
| HP:0000311 | Round face |
| HP:0000319 | Smooth philtrum |
| HP:0000322 | Short philtrum |
| HP:0000324 | Facial asymmetry |
| HP:0000325 | Triangular face |
| HP:0000341 | Narrow forehead |
| HP:0000343 | Long philtrum |
| HP:0000347 | Micrognathia |
| HP:0000358 | Posteriorly rotated ears |
| HP:0000396 | Overfolded helix |
GWAS associations
2 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST008103_88 | Bipolar disorder | 1.000000e-06 |
| GCST90002392_235 | Mean corpuscular volume | 2.000000e-10 |
MeSH disease descriptors (8)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D005660 | Funnel Chest | C05.116.099.386; C05.660.386; C16.131.621.386 |
| D006330 | Heart Defects, Congenital | C14.240.400; C14.280.400; C16.131.240.400 |
| D008607 | Intellectual Disability | C10.597.606.360; C23.888.592.604.646; F01.700.687; F03.625.539 |
| D008831 | Microcephaly | C05.660.207.620; C10.500.507.400.500; C16.131.621.207.620; C16.131.666.507.400.500 |
| D011115 | Polyneuropathies | C10.668.829.800 |
| C567906 | Mental Retardation, X-Linked 1 (supp.) | |
| C564489 | Mental Retardation, X-Linked 78 (supp.) | |
| C536704 | Wiedemann Grosse Dibbern syndrome (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL4105747 (SINGLE PROTEIN)
Molecules with ChEMBL bioactivity
2 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 11,759 (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 |
|---|---|---|---|
| CHEMBL1614701 | SELUMETINIB | 4 | 10,221 |
| CHEMBL1232461 | MOLIBRESIB | 2 | 1,538 |
PharmGKB: 1 entry (VIP=true, CPIC=false)
ChEMBL bioactivities
4 potent at pChembl≥5 of 4 total, top 4 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).
| pChembl | Type | Value | Unit | Molecule |
|---|---|---|---|---|
| 8.91 | Kd | 1.243 | nM | CHEMBL5653589 |
| 8.91 | ED50 | 1.243 | nM | CHEMBL5653589 |
| 6.44 | Kd | 365 | nM | SELUMETINIB |
| 5.78 | IC50 | 1660 | nM | MOLIBRESIB |
PubChem BioAssay actives
3 with measured affinity, of 229 total; 3 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 |
|---|---|---|---|---|
| 4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide | 2149444: Binding affinity to human SMC1A incubated for 45 mins by Kinobead based pull down assay | kd | 0.0012 | uM |
| Selumetinib | 1425172: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry. | kd | 0.3650 | uM |
| 2-[(4S)-6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]-N-ethylacetamide | 2178702: Inhibition of SMC1A (unknown origin) incubated for 1 hr by colloidal coomassie staining based LC-MS/MS analysis | ic50 | 1.6600 | uM |
CTD chemical–gene interactions
81 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | decreases expression, increases expression | 2 |
| cobaltous chloride | decreases expression | 2 |
| Resveratrol | increases reaction, affects cotreatment, increases expression, decreases reaction, increases phosphorylation | 2 |
| Acetaminophen | decreases expression, increases expression | 2 |
| Acetylcysteine | decreases reaction, increases phosphorylation, increases reaction | 2 |
| Benzo(a)pyrene | increases expression | 2 |
| Doxorubicin | decreases reaction, increases phosphorylation, increases reaction, decreases expression | 2 |
| Phenylmercuric Acetate | affects cotreatment, decreases expression | 2 |
| Valproic Acid | decreases expression | 2 |
| FR900359 | increases phosphorylation | 1 |
| TAK-243 | decreases sumoylation | 1 |
| pradimicin-IRD | affects response to substance, affects expression | 1 |
| dicrotophos | increases expression | 1 |
| geldanamycin | increases expression | 1 |
| lasiocarpine | increases metabolic processing, decreases expression | 1 |
| myristicin | decreases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| propionaldehyde | decreases expression | 1 |
| bisphenol A | decreases methylation | 1 |
| sodium arsenate | decreases expression | 1 |
| beta-lapachone | decreases expression | 1 |
| arsenite | affects binding, decreases reaction | 1 |
| methylparaben | increases expression | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | decreases expression | 1 |
| butyraldehyde | decreases expression | 1 |
| perfluorooctanoic acid | decreases expression | 1 |
| fludarabine | affects cotreatment, increases phosphorylation | 1 |
| 2,3-bis(3’-hydroxybenzyl)butyrolactone | affects cotreatment, increases expression | 1 |
| nickel sulfate | decreases expression | 1 |
| coumarin | increases phosphorylation | 1 |
ChEMBL screening assays
10 unique, capped per target: 10 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL3991885 | Binding | Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by ma | The target landscape of clinical kinase drugs. — Science |
Cellosaurus cell lines
4 cell lines: 3 embryonic stem cell, 1 finite cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_A6J0 | SEES3-1V human SMC1A, clone1 | Embryonic stem cell | Male |
| CVCL_A6J1 | SEES3-1V human SMC1A, clone2 | Embryonic stem cell | Male |
| CVCL_A6J2 | SEES3-1V human SMC1A, clone3 | Embryonic stem cell | Male |
| CVCL_D3AL | GM29122 | Finite cell line | Female |
Clinical trials (associated diseases)
297 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| 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 |
| NCT00162968 | PHASE4 | COMPLETED | Escitalopram as a Treatment for Pain in Polyneuropathy |
| NCT00832572 | PHASE4 | TERMINATED | Study of Ranexa in Patients With Coronary Artery Disease and Painful Polyneuropathy |
| NCT01047488 | PHASE4 | UNKNOWN | Imipramine and Pregabalin Combination in Painful Polyneuropathy |
| NCT01076478 | PHASE4 | COMPLETED | Asian Study on Cilostazol Effectivity in Neuropathies of Diabetes Mellitus Type 2-A Pilot Study in the Philippines |
| NCT01302275 | PHASE4 | COMPLETED | Oxcarbazepine for the Treatment of Chronic Peripheral Neuropathic Pain |
| NCT02033057 | PHASE4 | UNKNOWN | Muscular Electrostimulation of the Sedated and Mechanically Ventilated Critically Ill Patient. Analysis of the Effect on Acquired Muscular Weakness and Its Clinical Consequences. |
| NCT01486953 | PHASE4 | UNKNOWN | Pulmonary Mechanics During Minimally Invasive Repair of Pectus Excavatum |
| NCT02056301 | PHASE4 | TERMINATED | A Comparison Trial Between PCA and Epidural Analgesia for Pectus Excavatum Repair |
| NCT02169297 | PHASE4 | COMPLETED | Sub-Paraspinal Block in Nuss Patients. A Pilot Project |
| NCT02721017 | PHASE4 | COMPLETED | Cryoanalgesia vs. Epidural in the Nuss Procedure |
| 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 |
| NCT00259974 | PHASE3 | COMPLETED | RIMAG Study: Trial of Rituximab Versus Placebo in Polyneuropathy Associated With Anti-MAG IgM Monoclonal Gammopathy |
| NCT01263132 | PHASE3 | COMPLETED | Neuropathic Pain Management |
| NCT01450163 | PHASE3 | COMPLETED | Evaluate The Efficacy and Safety Of Pregabalin In Prevention, Reduction of Oxaliplatin-Induced Painful Neuropathy |
| NCT06563895 | PHASE3 | RECRUITING | Acoramidis Transthyretin Amyloidosis Prevention Trial in the Young (ACT-EARLY) Study in Asymptomatic Carriers of a Pathogenic TTR Variant |
| NCT06672237 | PHASE3 | RECRUITING | A Phase 3 Study of NTLA-2001 in ATTRv-PN |
| NCT07116473 | PHASE3 | NOT_YET_RECRUITING | To Evaluate the Long-term Safety and Tolerability of Acoramidis in Participants With Newly Diagnosed ATTR-CM (ACT-EARLY OLE) |
| NCT04381897 | PHASE2 | NOT_YET_RECRUITING | Use of N-Acetylcysteine in the Treatment of Repetitive and Self-Injurious Behaviors in Cornelia de Lange Syndrome |
| NCT02304302 | PHASE2 | COMPLETED | Down Syndrome Memantine Follow-up Study |
| NCT03862950 | PHASE2 | COMPLETED | A Trial of Metformin in Individuals With Fragile X Syndrome (Met) |
| NCT04529226 | PHASE2 | UNKNOWN | Study to Compare Clozapine vs Treatment as Usual in People With Intellectual Disability & Treatment-resistant Psychosis |
| NCT04821856 | PHASE2 | COMPLETED | Evaluation of the Effectiveness of Cannabidiol in Treating Severe Behavioural Problems in Children and Adolescents With Intellectual Disability |
| NCT00050245 | PHASE2 | COMPLETED | Rituximab to Treat Neuropathy With Anti-MAG Antibodies |
| NCT00082316 | PHASE2 | COMPLETED | Tolerability of Three Local Anesthetic Formulations in Conjunction With NGX-4010 for the Treatment of Neuropathic Pain |
| NCT00089557 | PHASE2 | TERMINATED | An Open-Label Extension Study of NGX-4010 for the Treatment of Neuropathic Pain |
| NCT00231673 | PHASE2 | COMPLETED | A Study To Evaluate The Effect Of Topiramate On Clinical And Electrophysiological Parameters In Subjects With Diabetic Peripheral Polyneuropathy |
| NCT00723918 | PHASE2 | WITHDRAWN | Combination of an Investigational Cannabinoid and Methadone for HIV-associated Neuropathy |
| NCT01088256 | PHASE2 | TERMINATED | Efficacy of Etoricoxib on Peripheral Hyperalgesia |
| NCT05273320 | PHASE1 | COMPLETED | Clinical Trial of Nabilone for Aggression in Adults With Intellectual and Developmental Disabilities |
| NCT05301361 | PHASE1 | ENROLLING_BY_INVITATION | Sensitivity of the NIH Toolbox to Stimulant Treatment in Intellectual Disabilities |
| NCT06016764 | PHASE1 | COMPLETED | Use of MRI and cTBS for Catatonia in Autism |
| NCT06586827 | PHASE1 | COMPLETED | Impact of Competency-Based Training and Technical Assistance Employment Outcomes of Individuals With ID/DD |
| NCT07531940 | PHASE1 | NOT_YET_RECRUITING | Escalating Doses of Memantine in Down Syndrome (MEDS-123) |
| NCT00614562 | PHASE1 | COMPLETED | Neurally Adjusted Ventilatory Assist (NAVA) in Patients With Critical Illness Associated Polyneuropathy / or Polymyopathy (CIP/M) |
| NCT01867645 | PHASE1 | TERMINATED | The Impact of IVIG Treatment on Critical Illness Polyneuropathy and/or Myopathy in Patients With MOF and SIRS/Sepsis |
| NCT06789783 | PHASE2/PHASE3 | RECRUITING | Cornelia De Lange Syndrome: Assessing Positive Effects of Lithium Treatment |
Related Atlas pages
- Associated diseases: Cornelia de Lange syndrome 2, developmental and epileptic encephalopathy, 85, with or without midline brain defects, Cornelia de Lange syndrome, atypical Rett syndrome, X-linked complex neurodevelopmental disorder
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): atypical Rett syndrome, bipolar disorder, congenital nervous system disorder, Cornelia de Lange syndrome, Cornelia de Lange syndrome 1, Cornelia de Lange syndrome 2, developmental and epileptic encephalopathy, 85, with or without midline brain defects, intellectual disability, X-linked 1, microcephaly, pectus excavatum, polyneuropathy, Wiedemann-Steiner syndrome, X-linked complex neurodevelopmental disorder