DNA-binding protein inhibitor ID-4 (ID4)

Transcriptional regulator (lacking a basic DNA binding domain) which simplifies 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, such as cellular growth, senescence, differentiation, apoptosis, angiogenesis, and neoplastic transformation (By similarity).

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