4qyl
Crystal Structure of the human BRPF1 bromodomain in complex with a histone H2AK5ac peptide
Structural highlights
FunctionBRPF1_HUMAN Component of the MOZ/MORF complex which has a histone H3 acetyltransferase activity. Positively regulates the transcription of RUNX1 and RUNX2.[1] [2] Publication Abstract from PubMedBromodomain-PHD finger protein 1 (BRPF1) is part of the MOZ HAT complex and contains a unique combination of domains typically found in chromatin-associated factors, which include plant homeodomain (PHD) fingers, a bromodomain and a proline-tryptophan-tryptophan-proline (PWWP) domain. Bromodomains are conserved structural motifs generally known to recognize acetylated histones, and the BRPF1 bromodomain preferentially selects for H2AK5ac, H4K12ac and H3K14ac. We solved the X-ray crystal structures of the BRPF1 bromodomain in complex with the H2AK5ac and H4K12ac histone peptides. Site-directed mutagenesis on residues in the BRPF1 bromodomain-binding pocket was carried out to investigate the contribution of specific amino acids on ligand binding. Our results provide critical insights into the molecular mechanism of ligand binding by the BRPF1 bromodomain, and reveal that ordered water molecules are an essential component driving ligand recognition. Structural insights into recognition of acetylated histone ligands by the BRPF1 bromodomain.,Lubula MY, Eckenroth BE, Carlson S, Poplawski A, Chruszcz M, Glass KC FEBS Lett. 2014 Sep 30. pii: S0014-5793(14)00705-4. doi:, 10.1016/j.febslet.2014.09.028. PMID:25281266[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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