期刊
JOURNAL OF BIOLOGICAL CHEMISTRY
卷 277, 期 29, 页码 26524-26529出版社
AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
DOI: 10.1074/jbc.M204121200
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资金
- NIAID NIH HHS [AI47209, AI42047] Funding Source: Medline
The m-Bop protein encoded by the mouse Bop gene is strongly expressed in heart and skeletal muscle, and recent studies with Bop knockout mice have demonstrated that m-Bop is essential for cardiogenesis in vivo and can act as a HDAC-dependent repressor in vitro. In the present studies, m-Bop was observed to interact with skNAC, a reported transcriptional activator specific to heart and skeletal muscle. The amino-terminal S region of the split S-ET domain of m-Bop as well as the MYND domain were required for interaction with skNAC in both the two-hybrid system and in coimmunoprecipitation experiments from cultured mammalian cells. As shown previously for interaction of the MYND domain-containing transcriptional corepressor, BS69, with several viral and cellular oncoproteins, a PXLXP motif in skNAC was required for interaction with mBop. Similar kinetics of induction and localization of m-Bop and skNAC during the induction of myogenesis in cultured C2C12 cells suggests a possible associated role for these proteins during this process.
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