Sin3A Associated Protein 25kDa (SAP25)
Английские синонимы
25 kDa Sin3-associated polypeptide; Histone deacetylase complex subunit SAP25; Sin3 corepressor complex subunit SAP25
SAP25 binds to the PAH1 domain of mSin3A, associates with the mSin3A-HDAC complex in vivo, and represses transcription when tethered to DNA. SAP25 is required for mSin3A-mediated, but not N-CoR-mediated, repression. SAP25 is a nucleocytoplasmic shuttling protein, actively exported from the nucleus by a CRM1-dependent mechanism. A fraction of SAP25 is located in promyelocytic leukemia protein (PML) nuclear bodies, and PML induces a striking nuclear accumulation of SAP25. An isotope-coded affinity tag quantitative proteomic analysis of the SAP25 complex revealed that SAP25 is associated with several components of the mSin3 complex, nuclear export machinery, and regulators of transcription and cell cycle. SAP25 is a novel core component of the mSin3 corepressor complex whose subcellular location is regulated by PML.
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Московский государственный университет им. Ломоносова
Московский государственный университет им. Ломоносова
