5tdr

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== Function ==
== Function ==
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[https://www.uniprot.org/uniprot/SET3_YEAST SET3_YEAST] Transcriptional regulator that acts via the formation of large multiprotein complexes that modify and/or remodel the chromatin. Required for both gene activation and repression. Part of the Set3C complex, which is required to repress early/middle sporulation genes during meiosis. Required for the transcriptional activation of genes with high activity.<ref>PMID:12434058</ref>
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[https://www.uniprot.org/uniprot/H31_HUMAN H31_HUMAN]
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== Publication Abstract from PubMed ==
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The plant homeodomain (PHD) finger of Set3 binds methylated lysine 4 of histone H3 in vitro and in vivo; however, precise selectivity of this domain has not been fully characterized. Here, we explore the determinants of methyllysine recognition by the PHD fingers of Set3 and its orthologs. We use X-ray crystallographic and spectroscopic approaches to show that the Set3 PHD finger binds di- and trimethylated states of H3K4 with comparable affinities and employs similar molecular mechanisms to form complexes with either mark. Composition of the methyllysine-binding pocket plays an essential role in determining the selectivity of the PHD fingers. The finding that the histone-binding activity is not conserved in the PHD finger of Set4 suggests different functions for the Set3 and Set4 paralogs.
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Structural Insight into Recognition of Methylated Histone H3K4 by Set3.,Gatchalian J, Ali M, Andrews FH, Zhang Y, Barrett AS, Kutateladze TG J Mol Biol. 2016 Sep 30. pii: S0022-2836(16)30400-4. doi:, 10.1016/j.jmb.2016.09.020. PMID:27697561<ref>PMID:27697561</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
== References ==
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Current revision

Set3 PHD finger in complex with histone H3K4me2

PDB ID 5tdr

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