ジャーナル: Nat Struct Mol Biol / 年: 2020 タイトル: Structure of H3K36-methylated nucleosome-PWWP complex reveals multivalent cross-gyre binding. 著者: Haibo Wang / Lucas Farnung / Christian Dienemann / Patrick Cramer / 要旨: Recognition of histone-modified nucleosomes by specific reader domains underlies the regulation of chromatin-associated processes. Whereas structural studies revealed how reader domains bind modified ...Recognition of histone-modified nucleosomes by specific reader domains underlies the regulation of chromatin-associated processes. Whereas structural studies revealed how reader domains bind modified histone peptides, it is unclear how reader domains interact with modified nucleosomes. Here, we report the cryo-electron microscopy structure of the PWWP reader domain of human transcriptional coactivator LEDGF in complex with an H3K36-methylated nucleosome at 3.2-Å resolution. The structure reveals multivalent binding of the reader domain to the methylated histone tail and to both gyres of nucleosomal DNA, explaining the known cooperative interactions. The observed cross-gyre binding may contribute to nucleosome integrity during transcription. The structure also explains how human PWWP domain-containing proteins are recruited to H3K36-methylated regions of the genome for transcription, histone acetylation and methylation, and for DNA methylation and repair.
名称: H3K36me3 nucleosome-LEDGF complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#7 詳細: H3K36me3 introduced by methyl-lysine analog method, only the density of PWWP domain of LEDGF is visible in the structure
名称: PC4 and SFRS1-interacting protein / タイプ: protein_or_peptide / ID: 7 詳細: density of residue 30-34 and residue 92-530 are invisible コピー数: 1 / 光学異性体: LEVO