Proteome-wide analysis in Saccharomyces cerevisiae identifies several PHD fingers as novel direct and selective binding modules of histone H3 methylated at either lysine 4 or lysine 36

Autor: LeAnn J. Howe, Kay L. Walter, Xiaobing Shi, Steve M. Chan, Paul J. Utz, Alexey Lugovskoy, Aimee Lake, Jen Hao A. Kuo, Mark T. Bedford, Scott D. Briggs, Foteini Davrazou, David G. E. Martin, Or Gozani, Tatiana G. Kutateladze, Ian M. Fingerman, Ioulia Kachirskaia
Rok vydání: 2006
Předmět:
Zdroj: The Journal of biological chemistry. 282(4)
ISSN: 0021-9258
Popis: The PHD finger motif is a signature chromatin-associated motif that is found throughout eukaryotic proteomes. Here we have determined the histone methyl-lysine binding activity of the PHD fingers present within the Saccharomyces cerevisiae proteome. We provide evidence on the genomic scale that PHD fingers constitute a general class of effector modules for histone H3 trimethylated at lysine 4 (H3K4me3) and histone H3 trimethylated at lysine 36 (H3K36me3). Structural modeling of PHD fingers demonstrates a conserved mechanism for recognizing the trimethyl moiety and provides insight into the molecular basis of affinity for the different methyl-histone ligands. Together, our study suggests that a common function for PHD fingers is to transduce methyl-lysine events and sheds light on how a single histone modification can be linked to multiple biological outcomes.
Databáze: OpenAIRE