Role of Host Cell Factor-1 in cell cycle regulation.
Volume 3, Issue 4
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Pages 187 - 192http://dx.doi.org/10.4161/trns.20711
: E2F, H3K4 HMT, HCF-1, histone modification, transcription
Authors: Zaffer Ullah Zargar and Shweta Tyagi View affiliations
Host cell factor-1(HCF-1) was first discovered as a cellular cofactor in the VP16-induced complex, a multi-protein DNA complex that forms on immediate early gene promoters of herpes simplex virus (HSV) to activate viral gene transcription. Subsequent research has revealed HCF-1 to be an abundant chromatin-associated protein that regulates various stages of the cell cycle. Recent reports show that HCF-1 interacts with diverse E2F proteins to induce cell-cycle-specific transcription. HCF-1 can act as a scaffold to a variety of histone-modifying proteins and these HCF-1-E2F-containing multi-protein complexes can bring about context-dependent activation or repression of transcription. In this review we examine the diversity of HCF-E2F interactions and the variety of multi-protein complexes it occurs in, to influence the local chromatin landscape at the E2F-promoters.
Received: April 2, 2012; Accepted: May 10, 2012; Published Online: July 1, 2012
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