4QYD

Crystal Structure of the human BRPF1 bromodomain in complex with a histone H4K12ac peptide

Summary for 4QYD

• Entry DOI: 10.2210/pdb4qyd/pdb
• Related: 4QYL
• Descriptor: Peregrin, Histone H4 (3 entities in total)
• Functional Keywords: bromodomain-phd finger protein 1 (brpf1), histone acetyltransferase (hat), monocytic leukemia zinc-finger (moz), epigenetics, chromatin reader, bromodomain, histone post-transcriptional modification (ptm) reader domain, histone h4 acetylated at lysine 14, acetyllysine, nucleus, protein binding
• Biological source: Homo sapiens (human); More
• Cellular location: Nucleus : P55201 P62805
• Total number of polymer chains: 2
• Total formula weight: 15037.24

Authors

Lubula, M.Y.,Glass, K.C. (deposition date: 2014-07-24, release date: 2014-09-24, Last modification date: 2024-10-30)

Primary citation

Lubula, M.Y.,Eckenroth, B.E.,Carlson, S.,Poplawski, A.,Chruszcz, M.,Glass, K.C.
Structural insights into recognition of acetylated histone ligands by the BRPF1 bromodomain.
Febs Lett., 588:3844-3854, 2014

PubMed Abstract: Bromodomain-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.

PubMed: 25281266
DOI: 10.1016/j.febslet.2014.09.028

Experimental method

X-RAY DIFFRACTION (1.94 Å)