SIM2
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Also known as MGC119447bHLHe15
Summary
SIM2 (SIM bHLH transcription factor 2, HGNC:10883) is a protein-coding gene on chromosome 21q22.13, encoding Single-minded homolog 2 (Q14190). Transcription factor that may be a master gene of CNS development in cooperation with Arnt.
This gene represents a homolog of the Drosophila single-minded (sim) gene, which encodes a transcription factor that is a master regulator of neurogenesis. The encoded protein is ubiquitinated by RING-IBR-RING-type E3 ubiquitin ligases, including the parkin RBR E3 ubiquitin protein ligase. This gene maps within the so-called Down syndrome chromosomal region, and is thus thought to contribute to some specific Down syndrome phenotypes. Alternative splicing of this gene results in multiple transcript variants.
Source: NCBI Gene 6493 — RefSeq curated summary.
At a glance
- GWAS associations: 10
- Clinical variants (ClinVar): 104 total — 1 likely-pathogenic
- Transcription factor: yes — 12 downstream targets (CollecTRI)
- MANE Select transcript:
NM_005069
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:10883 |
| Approved symbol | SIM2 |
| Name | SIM bHLH transcription factor 2 |
| Location | 21q22.13 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | MGC119447, bHLHe15 |
| Ensembl gene | ENSG00000159263 |
| Ensembl biotype | protein_coding |
| OMIM | 600892 |
| Entrez | 6493 |
Gene structure
Transcript identifiers
Ensembl transcripts: 5 — 3 protein_coding, 1 protein_coding_CDS_not_defined, 1 retained_intron
ENST00000290399, ENST00000431229, ENST00000460783, ENST00000481185, ENST00000483178
RefSeq mRNA: 2 — MANE Select: NM_005069
NM_005069, NM_009586
CCDS: CCDS13646
Canonical transcript exons
ENST00000290399 — 11 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001044382 | 36747665 | 36749917 |
| ENSE00001284595 | 36744728 | 36745136 |
| ENSE00003458994 | 36743387 | 36743555 |
| ENSE00003474390 | 36741717 | 36741864 |
| ENSE00003558601 | 36723045 | 36723130 |
| ENSE00003575917 | 36719821 | 36719929 |
| ENSE00003579996 | 36699115 | 36699921 |
| ENSE00003598947 | 36726119 | 36726318 |
| ENSE00003621494 | 36731045 | 36731151 |
| ENSE00003632648 | 36712533 | 36712622 |
| ENSE00003635370 | 36709168 | 36709250 |
Expression profiles
Bgee: expression breadth ubiquitous, 135 present calls, max score 95.91.
FANTOM5 (CAGE): breadth broad, TPM avg 4.4001 / max 278.0239, expressed in 643 samples.
FANTOM5 promoters (6 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 189003 | 2.8303 | 542 |
| 189002 | 0.9623 | 446 |
| 189004 | 0.3629 | 212 |
| 189005 | 0.1415 | 76 |
| 189006 | 0.0687 | 19 |
| 189007 | 0.0344 | 8 |
Top tissues by expression
261 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| renal medulla | UBERON:0000362 | 95.91 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 93.17 | gold quality |
| esophagus squamous epithelium | UBERON:0006920 | 92.67 | gold quality |
| buccal mucosa cell | CL:0002336 | 92.18 | gold quality |
| metanephros cortex | UBERON:0010533 | 90.84 | gold quality |
| esophagus mucosa | UBERON:0002469 | 90.60 | gold quality |
| epithelium of esophagus | UBERON:0001976 | 90.25 | gold quality |
| oral cavity | UBERON:0000167 | 80.15 | gold quality |
| amniotic fluid | UBERON:0000173 | 79.50 | gold quality |
| squamous epithelium | UBERON:0006914 | 79.22 | gold quality |
| vastus lateralis | UBERON:0001379 | 78.91 | silver quality |
| tongue squamous epithelium | UBERON:0006919 | 77.99 | silver quality |
| adult mammalian kidney | UBERON:0000082 | 77.94 | gold quality |
| superior surface of tongue | UBERON:0007371 | 77.49 | gold quality |
| tibia | UBERON:0000979 | 77.14 | gold quality |
| quadriceps femoris | UBERON:0001377 | 76.94 | silver quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 76.39 | gold quality |
| kidney | UBERON:0002113 | 75.08 | gold quality |
| triceps brachii | UBERON:0001509 | 74.55 | gold quality |
| tongue | UBERON:0001723 | 74.47 | gold quality |
| gluteal muscle | UBERON:0002000 | 73.63 | gold quality |
| nipple | UBERON:0002030 | 73.03 | gold quality |
| fundus of stomach | UBERON:0001160 | 72.61 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 71.70 | silver quality |
| body of stomach | UBERON:0001161 | 71.34 | gold quality |
| stomach | UBERON:0000945 | 71.17 | gold quality |
| cardia of stomach | UBERON:0001162 | 70.94 | gold quality |
| muscle organ | UBERON:0001630 | 70.55 | gold quality |
| medial globus pallidus | UBERON:0002477 | 70.22 | silver quality |
| body of tongue | UBERON:0011876 | 69.63 | gold quality |
Single-cell (SCXA)
Detected in 2 experiment(s), a significant marker in 2.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-CURD-119 | yes | 57.96 |
| E-ANND-3 | yes | 10.20 |
Regulation
Is transcription factor: yes
Downstream targets (CollecTRI)
12 targets.
| Target | Regulation |
|---|---|
| ARNT | |
| BCL2 | Repression |
| CASP3 | Activation |
| CSTB | |
| EPO | |
| HIF1A | Repression |
| MYOD1 | |
| MYOM2 | Activation |
| PIAS1 | |
| PRKN | Unknown |
| SIM2 | |
| SNAI2 | Unknown |
Upstream regulators (CollecTRI, top): CTNNB1, MYB, MYC, SIM2
miRNA regulators (miRDB)
28 targeting SIM2, 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-3692-3P | 99.98 | 70.27 | 2139 |
| HSA-MIR-4493 | 99.90 | 66.48 | 977 |
| HSA-MIR-548AJ-5P | 99.78 | 71.12 | 3085 |
| HSA-MIR-548G-5P | 99.78 | 71.12 | 3085 |
| HSA-MIR-548X-5P | 99.78 | 71.12 | 3085 |
| HSA-MIR-548F-5P | 99.78 | 71.02 | 3093 |
| HSA-MIR-1260A | 99.61 | 66.67 | 1098 |
| HSA-MIR-1260B | 99.61 | 66.67 | 1098 |
| HSA-MIR-4516 | 99.61 | 67.78 | 3390 |
| HSA-MIR-372-5P | 99.41 | 69.11 | 2299 |
| HSA-MIR-6852-5P | 99.17 | 66.69 | 2073 |
| HSA-MIR-4292 | 99.16 | 65.57 | 1767 |
| HSA-MIR-6791-5P | 99.16 | 65.92 | 1844 |
| HSA-MIR-661 | 99.09 | 65.94 | 2062 |
| HSA-MIR-6770-5P | 98.97 | 66.76 | 1853 |
| HSA-MIR-1267 | 98.24 | 69.05 | 837 |
| HSA-MIR-665 | 97.60 | 65.64 | 1781 |
| HSA-MIR-6802-3P | 97.29 | 65.42 | 613 |
| HSA-MIR-4286 | 97.20 | 64.37 | 1587 |
| HSA-MIR-3189-3P | 96.80 | 66.34 | 896 |
| HSA-MIR-552-3P | 96.68 | 64.12 | 1026 |
| HSA-MIR-7108-5P | 96.42 | 66.17 | 598 |
| HSA-MIR-6726-5P | 95.97 | 63.72 | 841 |
| HSA-MIR-920 | 95.97 | 63.95 | 811 |
| HSA-MIR-4300 | 95.85 | 64.56 | 1003 |
| HSA-MIR-5591-5P | 95.85 | 64.76 | 1002 |
| HSA-MIR-874-3P | 95.02 | 65.66 | 806 |
| HSA-MIR-6774-3P | 89.14 | 65.20 | 68 |
Literature-anchored findings (GeneRIF, showing 32)
- Stage-specific expression of the sim2-short-form protein was seen in normal matched paraffin sections of the colon tumors. In a matched set of tissues of Benign Prostatic Hyperplasia (BPH) and prostate carcinomas, sim2-s expression was detected in the BPH (PMID:12530058)
- Isoform-specific expression of SIM2 short-form (SIM2-s) was seen selectively in colon, prostate, and pancreatic carcinomas. (PMID:12676991)
- Tissue- and tumor-specific expression of both SIM2 isoforms (SIM2-s and SIM2-l), but not SIM1, were detected in the pancreatic tumor models. (PMID:14550949)
- SIM1 and SIM2 have a novel nuclear localization signal (PMID:14697214)
- a novel NXF signaling system on neural gene promoter may be a molecular target of the adverse effects of Sim2 in the mental retardation of Down’s syndrome (PMID:14701734)
- Potential role of SIM2 in central nervous system development. SIM2 overexpression could participate in pathogenesis of mental retardation in Down syndrome. (PMID:15946822)
- provide a direct link between SIM2-s and differentiation, and may provide a model to identify SIM2-s targets (PMID:16129820)
- The expression of a splice variant of SIM2, SIM2s, is lost or reduced in human breast cancers. Inhibits growth and invasiveness of breast cancer cells upon ectopic expression. Represses MMP3 expression by direct binding to the MMP3 promoter. (PMID:16840439)
- Knockdown of SIM2s in MCF-7 breast cancer cells contributed to an epithelial-mesenchymal transition associated with increased MMP2 and slug levels. (PMID:18160708)
- Ha-Ras transformation of MCF10A cells leads to repression of Singleminded-2s through NOTCH and C/EBPbeta. (PMID:19169276)
- SIM2s’ functional interference with HIF1alpha activities on BNIP3 may indicate a novel role for SIM2s in promoting tumourigenesis. (PMID:19668230)
- The SIM2 is expressed in prostate cancer(PCa) and that anti-SIM2 antibodies are detectable in PCa patients’ sera implicate SIM2 as a PCa-associated antigen that is a suitable potential target for PCa immunotherapy. (PMID:19737960)
- Genetic variants of SIM2 gene may not be associated with the susceptibility to congenital scoliosis and different clinical phenotypes of CS in Chinese Han population. (PMID:20137643)
- Significantly lower frequency of SIM2 C-G haplotype (rs2073601-rs2073416) was noticed in individuals with Down syndrome (P value =0.01669) and their fathers (P value=0.01185) (PMID:22048266)
- These results suggest an involvement of SIM2 in key traits of prostate tumor cell biology. (PMID:22174909)
- role for SIM2s in promoting human breast tumor differentiation and maintaining epithelial integrity. (PMID:22777354)
- Altered expression of SIM2 and ETS2 could be one of the reasons for variable occurrence of different malignant conditions in Down syndrome. (PMID:23343470)
- miR-200a is downregulated in human glioma and inhibition of miR-200a caused upregulation of SIM2-s in T98G cells and promoted their motility. (PMID:24162743)
- a single peptide containing multiple SIM2 epitopes can be used to induce both a CD4 and CD8 T cell response, providing a peptide-based vaccine formulation for potential use in immunotherapy of various cancers. (PMID:24690990)
- Data suggest selected SIM1 variants exhibit poor dimerization with ARNT2 (aryl-hydrocarbon receptor nuclear translocator 2) and anomalous intracellular localization; data were used to predict spot in SIM1/SIM2 (residues 290-326) critical in function. (PMID:24814368)
- Data showed that SIM2 was highly expressed in human glioma tumors and cell lines and its short form might increase the invasion of glioma cells through the alteration of epithelial-mesenchymal transition. (PMID:24909296)
- In SH-SY5Y cells, ethanol exposure increased Sim2 expression in a manner similar to that of cleaved caspase 3. PKA activation was required for this. Sim2 might be involved in activating caspase 3 and ethanol-induced apoptosis in SH-SY5Y cells. (PMID:25319570)
- Two genes, OR51E2 and SIM2, and two miRNAs, miR-200c and miR-200b, showed significant association with prostate cancer. (PMID:28910345)
- attenuates resistance to hypoxia and tumor growth by transcriptional suppression of HIF1A in uterine cervical squamous cell carcinoma (PMID:29109451)
- SIM2 increases CRT sensitivity through tumor differentiation by cooperation with ARNT. (PMID:29427302)
- TMEM75 functions as an oncogene relying on activation of SIM2 in colorectal cancer. (PMID:29964097)
- SIM2s interacts with ATM and is stabilized through ATM-dependent phosphorylation in response to IR. (PMID:30531838)
- these results show a role for SIM2s in the resolution of replication stress and further characterize the necessity of SIM2s for effective RAD51 loading in response to DNA damage or stress, ultimately promoting genomic integrity and thus preventing the accumulation of cancer-promoting mutations. (PMID:31775907)
- These findings support a role for SIM2s in the prevention of breast cancer progression through its ability to repress PTGS2 expression via modulating the NFkappaB signaling pathway. (PMID:31783895)
- CD24 and CK4 are upregulated by SIM2, and are predictive biomarkers for chemoradiotherapy and surgery in esophageal cancer. (PMID:32124945)
- Long noncoding RNA CASC15 facilitates esophageal squamous cell carcinoma tumorigenesis via decreasing SIM2 stability via FTOmediated demethylation. (PMID:33650646)
- Characterization of functionally deficient SIM2 variants found in patients with neurological phenotypes. (PMID:35730699)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| mus_musculus | Sim2 | ENSMUSG00000062713 |
| rattus_norvegicus | Sim2 | ENSRNOG00000054203 |
| drosophila_melanogaster | trh | FBGN0262139 |
| drosophila_melanogaster | sima | FBGN0266411 |
| caenorhabditis_elegans | WBGENE00001851 |
Paralogs (7): HIF1A (ENSG00000100644), SIM1 (ENSG00000112246), EPAS1 (ENSG00000116016), HIF3A (ENSG00000124440), NPAS1 (ENSG00000130751), NPAS3 (ENSG00000151322), NPAS4 (ENSG00000174576)
Protein
Protein identifiers
Single-minded homolog 2 — Q14190 (reviewed: Q14190)
Alternative names: Class E basic helix-loop-helix protein 15
All UniProt accessions (3): Q14190, H7BZX8, V9GY04
UniProt curated annotations — full annotation on UniProt →
Function. Transcription factor that may be a master gene of CNS development in cooperation with Arnt. It may have pleiotropic effects in the tissues expressed during development.
Subunit / interactions. Efficient DNA binding requires dimerization with another bHLH protein. Heterodimer of SIM2 and ARNT.
Subcellular location. Nucleus.
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q14190-1 | SIM2 | yes |
| Q14190-2 | SIM2S |
RefSeq proteins (2): NP_005060, NP_033664 (=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000014 | PAS | Domain |
| IPR001610 | PAC | Repeat |
| IPR010578 | SIM_C | Domain |
| IPR011598 | bHLH_dom | Domain |
| IPR013655 | PAS_fold_3 | Domain |
| IPR013767 | PAS_fold | Domain |
| IPR035965 | PAS-like_dom_sf | Homologous_superfamily |
| IPR036638 | HLH_DNA-bd_sf | Homologous_superfamily |
Pfam: PF00989, PF06621, PF08447, PF23171
UniProt features (36 total): mutagenesis site 18, domain 5, sequence conflict 3, region of interest 3, compositionally biased region 2, splice variant 2, chain 1, sequence variant 1, short sequence motif 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q14190-F1 | 63.05 | 0.36 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Mutagenesis-validated functional residues (18):
| Position | Phenotype |
|---|---|
| 367 | reduced nuclear translocation. |
| 368 | no effect on nuclear translocation. |
| 369 | no effect on nuclear translocation. |
| 370 | no effect on nuclear translocation. |
| 371 | no effect on nuclear translocation. |
| 372 | no effect on nuclear translocation. |
| 373 | reduced nuclear translocation. |
| 375 | no effect on nuclear translocation. |
| 376 | no effect on nuclear translocation. |
| 377 | no effect on nuclear translocation. |
| 378 | no effect on nuclear translocation. |
| 379 | no effect on nuclear translocation. |
| 380 | no effect on nuclear translocation. |
| 381 | no effect on nuclear translocation. |
| 382 | no effect on nuclear translocation. |
| 383 | no effect on nuclear translocation. |
| 385 | reduced nuclear translocation. |
| 386 | reduced nuclear translocation. |
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 138 (showing top):
GCACCTT_MIR18A_MIR18B, BENPORATH_ES_WITH_H3K27ME3, MORF_MSH3, GCANCTGNY_MYOD_Q6, MODULE_16, MORF_RAD51L3, TANG_SENESCENCE_TP53_TARGETS_UP, GOBP_EMBRYONIC_PATTERN_SPECIFICATION, CREIGHTON_ENDOCRINE_THERAPY_RESISTANCE_5, GOBP_RESPIRATORY_SYSTEM_DEVELOPMENT, GOBP_EMBRYO_DEVELOPMENT, MORF_ATF2, chr21q22, DANG_BOUND_BY_MYC, MORF_BCL2L11
GO Biological Process (9): negative regulation of transcription by RNA polymerase II (GO:0000122), regulation of transcription by RNA polymerase II (GO:0006357), nervous system development (GO:0007399), embryonic pattern specification (GO:0009880), cell differentiation (GO:0030154), lung development (GO:0030324), regulation of DNA-templated transcription (GO:0006355), negative regulation of DNA-templated transcription (GO:0045892), system development (GO:0048731)
GO Molecular Function (7): RNA polymerase II transcription regulatory region sequence-specific DNA binding (GO:0000977), DNA-binding transcription factor activity, RNA polymerase II-specific (GO:0000981), DNA binding (GO:0003677), DNA-binding transcription factor activity (GO:0003700), protein heterodimerization activity (GO:0046982), protein binding (GO:0005515), protein dimerization activity (GO:0046983)
GO Cellular Component (4): chromatin (GO:0000785), nucleus (GO:0005634), nucleoplasm (GO:0005654), nuclear body (GO:0016604)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| regulation of DNA-templated transcription | 3 |
| regulation of transcription by RNA polymerase II | 2 |
| transcription by RNA polymerase II | 2 |
| DNA-templated transcription | 2 |
| transcription cis-regulatory region binding | 2 |
| cellular anatomical structure | 2 |
| negative regulation of DNA-templated transcription | 1 |
| system development | 1 |
| pattern specification process | 1 |
| embryo development | 1 |
| cellular developmental process | 1 |
| respiratory tube development | 1 |
| animal organ development | 1 |
| respiratory system development | 1 |
| regulation of gene expression | 1 |
| regulation of RNA biosynthetic process | 1 |
| negative regulation of RNA biosynthetic process | 1 |
| multicellular organism development | 1 |
| anatomical structure development | 1 |
| chromatin | 1 |
| RNA polymerase II transcription regulatory region sequence-specific DNA binding | 1 |
| DNA-binding transcription factor activity | 1 |
| nucleic acid binding | 1 |
| transcription regulator activity | 1 |
| protein dimerization activity | 1 |
| binding | 1 |
| protein binding | 1 |
| chromosome | 1 |
| intracellular membrane-bounded organelle | 1 |
| nuclear lumen | 1 |
| nucleoplasm | 1 |
| intracellular membraneless organelle | 1 |
Protein interactions and networks
STRING
778 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| SIM2 | ARNT | P27540 | 601 |
| SIM2 | OTP | Q5XKR4 | 568 |
| SIM2 | THSD4 | Q6ZMP0 | 529 |
| SIM2 | NPAS4 | Q8IUM7 | 512 |
| SIM2 | PIAS1 | O75925 | 508 |
| SIM2 | SIX3 | O95343 | 502 |
| SIM2 | ACTB | P02570 | 490 |
| SIM2 | ARNT2 | Q9HBZ2 | 485 |
| SIM2 | TRH | P20396 | 467 |
| SIM2 | CTSE | P14091 | 460 |
| SIM2 | SUMO1 | P55856 | 448 |
| SIM2 | SUMO2 | P55855 | 444 |
| SIM2 | HIF1A | Q16665 | 444 |
| SIM2 | TRIM5 | Q9C035 | 443 |
| SIM2 | ROS1 | P08922 | 422 |
IntAct
38 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| SIM2 | PTGES3 | psi-mi:“MI:0915”(physical association) | 0.570 |
| FOXR2 | NME2P1 | psi-mi:“MI:0914”(association) | 0.530 |
| SIM2 | Dlg4 | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| HSP90AB1 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | FKBP5 | psi-mi:“MI:0915”(physical association) | 0.400 |
| MLF1 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| Hacd3 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| MLF2 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | HSP90AB1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | BAG4 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | NUDC | psi-mi:“MI:0915”(physical association) | 0.400 |
| BAG2 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 | |
| HSPB1 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| NUDCD3 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 | |
| SIM2 | PSMD2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SGTA | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | STIP1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| FKBPL | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | STUB1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| CACYBP | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | AIP | psi-mi:“MI:0915”(physical association) | 0.400 |
| AARSD1 | SIM2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | PPP5C | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIM2 | TTC1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| FOXN1 | FOXN1 | psi-mi:“MI:0914”(association) | 0.350 |
| SIM2 | HSPA8 | psi-mi:“MI:0914”(association) | 0.350 |
| ARNT2 | FNTA | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (52): SIM2 (Affinity Capture-MS), SIM2 (Affinity Capture-MS), SIM2 (Affinity Capture-MS), SIM2 (Affinity Capture-MS), ARNT (Affinity Capture-MS), ARNT2 (Affinity Capture-MS), MAGED1 (Affinity Capture-MS), MATR3 (Affinity Capture-MS), MAGED1 (Affinity Capture-Western), SIM2 (Affinity Capture-Western), SIM2 (Affinity Capture-Western), ARNT (FRET), MAGED1 (FRET), ARNT (Reconstituted Complex), ARNT2 (Reconstituted Complex)
ESM2 similar proteins: A1YFY6, A2T6X9, A6H7I8, B2RUJ5, F1M5F3, F1N2W9, O35430, O35431, O95487, O95628, O95644, P0C6S7, P14316, P17863, P22681, P22682, P23798, P23906, P35227, P81133, P98084, Q02410, Q0IHY4, Q13469, Q14190, Q14432, Q1L994, Q3UR85, Q52L14, Q5CD77, Q5RD33, Q60591, Q61045, Q61079, Q66JB6, Q69ZT9, Q6NRE7, Q6QB00, Q8BIZ1, Q8BT14
Diamond homologs: A1YFY6, A2T6X9, A9YTQ3, O09000, O35800, P05709, P81133, P97459, P97481, Q0PGG7, Q0VBL6, Q14190, Q16665, Q24119, Q24167, Q309Z6, Q61045, Q61079, Q61221, Q8IXF0, Q98SJ5, Q98SW2, Q99742, Q99814, Q9I8A9, Q9JHS1, Q9JHS2, Q9QZQ0, Q9XTA5, Q9Y2N7, Q9YIB9, E7FFX1, O02747, O44712, O57539, O61734, P30561, P35869, P41738, P70365
SIGNOR signaling
1 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| SIM2 | “up-regulates activity” | ARNT | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 33 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 |
|---|---|---|---|
| HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand | 5 | 44.0× | 8e-06 |
| Cellular responses to stress | 5 | 8.4× | 4e-03 |
| Cellular responses to stimuli | 5 | 7.2× | 7e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| protein folding | 10 | 35.6× | 3e-11 |
| protein stabilization | 5 | 11.5× | 4e-03 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
104 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 1 |
| Uncertain significance | 84 |
| Likely benign | 5 |
| Benign | 3 |
Top pathogenic / likely-pathogenic (1)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1334899 | NM_005069.6(SIM2):c.461A>G (p.Tyr154Cys) | Likely pathogenic |
SpliceAI
2379 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 21:36699919:AAG:A | donor_loss | 1.0000 |
| 21:36699921:GG:G | donor_loss | 1.0000 |
| 21:36699923:T:A | donor_loss | 1.0000 |
| 21:36712832:T:A | acceptor_gain | 1.0000 |
| 21:36718661:G:GT | donor_gain | 1.0000 |
| 21:36726117:A:AG | acceptor_gain | 1.0000 |
| 21:36726117:AGG:A | acceptor_loss | 1.0000 |
| 21:36726118:G:C | acceptor_loss | 1.0000 |
| 21:36726118:G:GG | acceptor_gain | 1.0000 |
| 21:36726314:TCCAG:T | donor_loss | 1.0000 |
| 21:36726315:CCAG:C | donor_loss | 1.0000 |
| 21:36726316:CAGG:C | donor_loss | 1.0000 |
| 21:36726318:GGTG:G | donor_loss | 1.0000 |
| 21:36726320:T:A | donor_loss | 1.0000 |
| 21:36731147:CCTCC:C | donor_gain | 1.0000 |
| 21:36731152:G:GG | donor_gain | 1.0000 |
| 21:36741715:A:AG | acceptor_gain | 1.0000 |
| 21:36741716:G:GG | acceptor_gain | 1.0000 |
| 21:36741716:GT:G | acceptor_gain | 1.0000 |
| 21:36741837:GCATC:G | donor_gain | 1.0000 |
| 21:36741842:G:GG | donor_gain | 1.0000 |
| 21:36747663:A:AG | acceptor_gain | 1.0000 |
| 21:36747664:G:GG | acceptor_gain | 1.0000 |
| 21:36747664:GC:G | acceptor_gain | 1.0000 |
| 21:36712833:G:A | acceptor_gain | 0.9900 |
| 21:36723043:A:AG | acceptor_gain | 0.9900 |
| 21:36723044:G:GG | acceptor_gain | 0.9900 |
| 21:36723044:GA:G | acceptor_gain | 0.9900 |
| 21:36726118:GGTC:G | acceptor_gain | 0.9900 |
| 21:36726258:AC:A | donor_gain | 0.9900 |
AlphaMissense
4311 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 21:36699764:G:C | K6N | 1.000 |
| 21:36699764:G:T | K6N | 1.000 |
| 21:36699772:C:A | A9D | 1.000 |
| 21:36699780:A:G | R12G | 1.000 |
| 21:36699781:G:C | R12T | 1.000 |
| 21:36699781:G:T | R12M | 1.000 |
| 21:36699782:G:C | R12S | 1.000 |
| 21:36699782:G:T | R12S | 1.000 |
| 21:36699783:A:G | R13G | 1.000 |
| 21:36699784:G:C | R13T | 1.000 |
| 21:36699784:G:T | R13M | 1.000 |
| 21:36699785:G:C | R13S | 1.000 |
| 21:36699785:G:T | R13S | 1.000 |
| 21:36699792:G:A | E16K | 1.000 |
| 21:36699794:A:C | E16D | 1.000 |
| 21:36699794:A:T | E16D | 1.000 |
| 21:36699797:T:A | N17K | 1.000 |
| 21:36699797:T:G | N17K | 1.000 |
| 21:36699804:T:C | F20L | 1.000 |
| 21:36699805:T:C | F20S | 1.000 |
| 21:36699805:T:G | F20C | 1.000 |
| 21:36699806:T:A | F20L | 1.000 |
| 21:36699806:T:G | F20L | 1.000 |
| 21:36699814:T:A | L23H | 1.000 |
| 21:36699814:T:C | L23P | 1.000 |
| 21:36699816:G:C | A24P | 1.000 |
| 21:36699817:C:A | A24D | 1.000 |
| 21:36699823:T:C | L26P | 1.000 |
| 21:36699826:T:A | L27H | 1.000 |
| 21:36699826:T:C | L27P | 1.000 |
dbSNP variants (sampled 300 via entrez): RS1000030674 (21:36706578 G>A,T), RS1000120358 (21:36733228 C>A), RS1000134758 (21:36701851 C>T), RS1000159034 (21:36737822 G>A), RS1000209563 (21:36722257 A>G), RS1000212076 (21:36743916 C>T), RS1000285147 (21:36705742 C>A,T), RS1000314859 (21:36738086 G>A), RS1000321781 (21:36701354 T>C), RS1000387091 (21:36711566 G>A,T), RS1000408836 (21:36733001 C>T), RS1000441853 (21:36705942 T>C,G), RS1000538423 (21:36747280 T>C), RS1000588679 (21:36701161 T>A), RS1000607600 (21:36741994 T>C)
Disease associations
OMIM: gene MIM:600892 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
10 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST002322_19 | Asthma and hay fever | 2.000000e-06 |
| GCST003542_70 | Night sleep phenotypes | 1.000000e-06 |
| GCST004601_205 | Red blood cell count | 2.000000e-11 |
| GCST004604_2 | Hematocrit | 7.000000e-13 |
| GCST004615_134 | Hemoglobin concentration | 2.000000e-11 |
| GCST009203_14 | Cerebellum cortex volume | 9.000000e-06 |
| GCST010083_63 | Hemoglobin levels | 2.000000e-21 |
| GCST90000025_698 | Appendicular lean mass | 8.000000e-21 |
| GCST90002383_321 | Hematocrit | 2.000000e-10 |
| GCST90002384_490 | Hemoglobin | 1.000000e-09 |
EFO canonical traits (5, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0007827 | nighttime rest measurement |
| EFO:0004305 | erythrocyte count |
| EFO:0004348 | hematocrit |
| EFO:0004509 | hemoglobin measurement |
| EFO:0004980 | appendicular lean mass |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
30 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | affects methylation, decreases expression, increases abundance, increases expression | 4 |
| bisphenol A | affects cotreatment, decreases methylation, increases expression | 2 |
| Benzo(a)pyrene | affects methylation, increases methylation | 2 |
| Nickel | decreases expression | 2 |
| Valproic Acid | affects cotreatment, decreases expression | 2 |
| geraniol | increases expression | 1 |
| ethyl-p-hydroxybenzoate | increases expression | 1 |
| trichostatin A | decreases expression | 1 |
| arsenite | increases methylation | 1 |
| benzo(e)pyrene | increases methylation | 1 |
| potassium chromate(VI) | increases expression | 1 |
| aflatoxin B2 | increases methylation | 1 |
| cupric oxide | decreases expression | 1 |
| S-(1,2-dichlorovinyl)cysteine | affects response to substance, increases expression | 1 |
| 2-palmitoylglycerol | increases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, decreases expression | 1 |
| abrine | increases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| jinfukang | affects cotreatment, decreases expression | 1 |
| Fulvestrant | affects cotreatment, decreases methylation | 1 |
| Arsenic | increases abundance, increases expression | 1 |
| Cisplatin | affects cotreatment, decreases expression | 1 |
| Clozapine | decreases expression | 1 |
| Estradiol | increases expression | 1 |
| Lipopolysaccharides | affects response to substance, increases expression | 1 |
| Methapyrilene | increases methylation | 1 |
| Silicon Dioxide | decreases expression | 1 |
| Smoke | increases expression | 1 |
| Vanadates | decreases expression | 1 |
| Particulate Matter | increases expression | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): asthma, seasonal allergic rhinitis