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SAM domain of TFCP2 transcription factors SAM (sterile alpha motif) domain of TFCP2 transcription factors is a putative protein-protein interaction domain. Proteins of this group have an N-terminal DNA-binding CP2 domain, a central predicted SAM domain and a C-terminal dimerization domain. They are involved in transcriptional regulation from early development to terminal differentiation. In particular, they regulate expression of erythroid cell-specific alpha-globin, fibrinogen, and sex-determining gene SRY as well as lens alpha-crystallin. TFCP2 regulators can interact with NF-E4 proteins forming heteromeric stage selector protein complex (SSP). This complex is able to bind stage selector element (SSE) and regulate embryonic globin expression in fetal-erythroid cells. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",