Journal
NATURE STRUCTURAL & MOLECULAR BIOLOGY
Volume 13, Issue 4, Pages 331-338Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nsmb1063
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Jun dimerization protein-2 ( JDP2) is a component of the AP-1 transcription factor that represses transactivation mediated by the Jun family of proteins. Here, we examine the functional mechanisms of JDP2 and show that it can inhibit p300-mediated acetylation of core histones in vitro and in vivo. Inhibition of histone acetylation requires the N-terminal 35 residues and the DNA-binding region of JDP2. In addition, we demonstrate that JDP2 has histone-chaperone activity in vitro. These results suggest that the sequence-specific DNA-binding protein JDP2 may control transcription via direct regulation of the modification of histones and the assembly of chromatin.
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