First Author | Martin JF | Year | 1993 |
Journal | Proc Natl Acad Sci U S A | Volume | 90 |
Issue | 11 | Pages | 5282-6 |
PubMed ID | 8506376 | Mgi Jnum | J:17643 |
Mgi Id | MGI:65676 | Doi | 10.1073/pnas.90.11.5282 |
Citation | Martin JF, et al. (1993) Myocyte enhancer factor (MEF) 2C: a tissue-restricted member of the MEF-2 family of transcription factors. Proc Natl Acad Sci U S A 90(11):5282-6 |
abstractText | MEF-2 is a muscle-specific DNA binding activity that recognizes an A+T-rich sequence found in the control regions of numerous muscle-specific genes. The recent cloning of MEF-2 showed that it belongs to the MADS (MCM1, Agamous, Deficiens, and serum-response factor) box family of transcription factors and that MEF-2 mRNA is expressed ubiquitously. Here we describe the cloning of a member of the MEF-2 gene family, referred to as MEF-2C, that is nearly identical to other MEF-2 gene products in the MADS box but diverges from other members of the family outside of this domain. MEF-2C binds the MEF-2 site with high affinity and can activate transcription of a reporter gene linked to tandem copies of that site. In contrast to previously described members of the MEF-2 family, MEF-2C transcripts are highly enriched in skeletal muscle, spleen, and brain of adult mice and are upregulated during myoblast differentiation. These results suggest that the MEF-2 site is a target for a diverse family of proteins that regulates transcription in a variety of cell types. |