Previous Article | Next Article ![]()
Mol. Cell. Biol., Sep 1997, 4957-4966, Vol 17, No. 9
C Zhu, FE Johansen and R Prywes
Serum response factor (SRF) is a transcription factor which binds to the
serum response element (SRE) in the c-fos promoter. It is required for
regulated expression of the c-fos gene as well as other immediate- early
genes and some tissue-specific genes. To better understand the regulation
of SRF, we used a yeast interaction assay to screen a human HeLa cell cDNA
library for SRF-interacting proteins. ATF6, a basic- leucine zipper
protein, was isolated by binding to SRF and in particular to its
transcriptional activation domain. The binding of ATF6 to SRF was also
detected in vitro. An ATF6-VP16 chimera activated expression of an SRE
reporter gene in HeLa cells, suggesting that ATF6 can interact with
endogenous SRF. More strikingly, an antisense ATF6 construct reduced serum
induction of a c-fos reporter gene, suggesting that ATF6 is involved in
activation of transcription by SRF. ATF6 was previously partially cloned as
a member of the ATF family. The complete cDNA of ATF6 was isolated, and its
expression pattern was described.
Copyright © 1997, American Society for Microbiology
Interaction of ATF6 and serum response factor
Department of Biological Sciences, Columbia University, New York, New York 10027, USA.
This article has been cited by other articles:
Copyright © 2011 by the American Society for Microbiology. For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»