Function: Participates in the regulation of gene transcription. Binds DNA in a non-specific manner, yet also specifically recognizes the core sequence 5'-CAC[GA]TG-3'. Seems to activate the transcription of growth-related genes
By similarity.
Subunit structure: Efficient DNA binding requires dimerization with another bHLH protein. Binds DNA as a heterodimer with MAX. Interacts with TAF1C and SPAG9. Interacts with PARP10. Interacts with KDM5A and KDM5B. Interacts (when phosphorylated at Thr-58 and Ser-62) with FBXW7
By similarity. Interacts with PIM2
By similarity. Interacts with NO66
By similarity.
Subcellular location: Nucleus › nucleoplasm
By similarity. Nucleus › nucleolus
By similarity.
Post-translational modification: Phosphorylated by PRKDC. Phosphorylation at Thr-58 and Ser-62 by GSK3 is required for ubiquitination and degradation by the proteasome
By similarity. Phosphorylation at Ser-329 by PIM2 leads to the stabilization of MYC. Phosphorylation at Ser-62 by CDK2 prevents Ras-induced senescence
By similarity.Ubiquitinated by the SCF(FBXW7) complex when phosphorylated at Thr-58 and Ser-62, leading to its degradation by the proteasome. In the nucleoplasm, ubiquitination is counteracted by USP28, which interacts with of FBXW7 (FBW7alpha), leading to its deubiquitination and preventing degradation. Also polyubiquitinated by the DCX(TRUSS) complex
By similarity.
Involvement in disease: Note=Overexpression of C-Myc is implicated in the etiology of a variety of hematopoietic tumors.
Biotechnological use: POU5F1/OCT4, SOX2, MYC/c-Myc and KLF4 are the four Yamanaka factors. When combined, these factors are sufficient to reprogram differentiated cells to an embryonic-like state designated iPS (induced pluripotent stem) cells. iPS cells exhibit the morphology and growth properties of ES cells and express ES cell marker genes. Ref.2
Sequence similarities: Contains 1 bHLH (basic helix-loop-helix) domain.
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