2P5B

The complex structure of JMJD2A and trimethylated H3K36 peptide

2P5B の概要

• エントリーDOI: 10.2210/pdb2p5b/pdb
• 関連するPDBエントリー: 2gp3 2gp5
• 分子名称: JmjC domain-containing histone demethylation protein 3A, Histone H3, ZINC ION, ... (7 entities in total)
• 機能のキーワード: jmjd2a, jmjc domain, histone demethylase, metal binding protein
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Nucleus: O75164; Nucleus (By similarity): P84239
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 87211.48

構造登録者

Zhang, G.,Chen, Z.,Zang, J.,Hong, X.,Shi, Y. (登録日: 2007-03-14, 公開日: 2007-06-12, 最終更新日: 2025-03-26)

主引用文献

Chen, Z.,Zang, J.,Kappler, J.,Hong, X.,Crawford, F.,Wang, Q.,Lan, F.,Jiang, C.,Whetstine, J.,Dai, S.,Hansen, K.,Shi, Y.,Zhang, G.
Structural basis of the recognition of a methylated histone tail by JMJD2A.
Proc.Natl.Acad.Sci.USA, 104:10818-10823, 2007

PubMed Abstract: The Jumonji C domain is a catalytic motif that mediates histone lysine demethylation. The Jumonji C-containing oxygenase JMJD2A specifically demethylates tri- and dimethylated lysine-9 and lysine-36 of histone 3 (H3K9/36 me3/2). Here we present structures of the JMJD2A catalytic core complexed with methylated H3K36 peptide substrates in the presence of Fe(II) and N-oxalylglycine. We found that the interaction between JMJD2A and peptides largely involves the main chains of the enzyme and the peptide. The peptide-binding specificity is primarily determined by the primary structure of the peptide, which explains the specificity of JMJD2A for methylated H3K9 and H3K36 instead of other methylated residues such as H3K27. The specificity for a particular methyl group, however, is affected by multiple factors, such as space and the electrostatic environment in the catalytic center of the enzyme. These results provide insights into the mechanisms and specificity of histone demethylation.

PubMed: 17567753
DOI: 10.1073/pnas.0704525104

実験手法

X-RAY DIFFRACTION (1.99 Å)