InnateDB Protein
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IDBP-197684.6
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Last Modified
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2014-10-13 [Report errors or provide feedback]
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Gene Symbol
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Id3
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Protein Name
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inhibitor of DNA binding 3
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Synonyms
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bHLHb25; Hlh462; Idb3;
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Species
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Mus musculus
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Ensembl Protein
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ENSMUSP00000008016
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InnateDB Gene
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IDBG-197682 (Id3)
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Protein Structure
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Function |
Transcriptional regulator (lacking a basic DNA binding domain) which negatively regulates the basic helix-loop-helix (bHLH) transcription factors by forming heterodimers and inhibiting their DNA binding and transcriptional activity. Implicated in regulating a variety of cellular processes, including cellular growth, senescence, differentiation, apoptosis, angiogenesis, and neoplastic transformation. Involved in myogenesis by inhibiting skeletal muscle and cardiac myocyte differentiation and promoting muscle precursor cells proliferation. Inhibits the binding of E2A-containing protein complexes to muscle creatine kinase E-box enhancer. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK-ARNTL/BMAL1 heterodimer. {ECO:0000269PubMed:19217292, ECO:0000269PubMed:22862948, ECO:0000269PubMed:23824195}.
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Subcellular Localization |
Nucleus {ECO:0000255PROSITE- ProRule:PRU00981, ECO:0000269PubMed:16556596}. Cytoplasm {ECO:0000269PubMed:16556596}. Note=Nuclear in proliferating cells, translocates to cytosol during cell differentiation.
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Disease Associations |
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Tissue Specificity |
Expressed by myoblasts (at protein level). {ECO:0000269PubMed:23824195}.
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Comments |
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Number of Interactions
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This gene and/or its encoded proteins are associated with 17 experimentally validated interaction(s) in this database.
They are also associated with 31 interaction(s) predicted by orthology.
Experimentally validated |
Total |
17
[view]
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Protein-Protein |
13
[view]
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Protein-DNA |
4
[view]
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Protein-RNA |
0
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DNA-DNA |
0
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RNA-RNA |
0
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DNA-RNA |
0
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Predicted by orthology |
Total |
31 [view]
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Molecular Function |
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Biological Process |
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Cellular Component |
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PDB ID |
MGI:96398
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InterPro |
IPR011598
Myc-type, basic helix-loop-helix (bHLH) domain
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PFAM |
PF00010
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PRINTS |
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PIRSF |
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SMART |
SM00353
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TIGRFAMs |
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Modification |
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SwissProt |
P41133
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PhosphoSite |
PhosphoSite-P41133
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TrEMBL |
Q545W1
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UniProt Splice Variant |
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Entrez Gene |
15903
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UniGene |
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RefSeq |
NP_032347
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MGI ID |
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MGI Symbol |
Id3
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OMIM |
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CCDS |
CCDS18800
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HPRD |
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IMGT |
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EMBL |
AK002820
BC145871
BC145873
CH466552
M60523
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GenPept |
AAA37818
AAI45872
AAI45874
BAB22383
EDL29948
EDL29949
EDL29950
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