8IIZ

Crystal structure of MBP fused GAS41 YEATS domain in complex with H3K27ac peptide

8IIZ の概要

• エントリーDOI: 10.2210/pdb8iiz/pdb
• 関連するBIRD辞書のPRD_ID: PRD_900001
• 分子名称: Maltodextrin-binding protein,YEATS domain-containing protein 4, Histone H3.1, alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose, ... (5 entities in total)
• 機能のキーワード: yeats domain, transcription, complex, histone modification, nuclear protein
• 由来する生物種: Escherichia coli; 詳細
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 64609.40

構造登録者

Kikuchi, M.,Umehara, T. (登録日: 2023-02-24, 公開日: 2023-11-01, 最終更新日: 2024-10-23)

主引用文献

Kikuchi, M.,Takase, S.,Konuma, T.,Noritsugu, K.,Sekine, S.,Ikegami, T.,Ito, A.,Umehara, T.
GAS41 promotes H2A.Z deposition through recognition of the N terminus of histone H3 by the YEATS domain.
Proc.Natl.Acad.Sci.USA, 120:e2304103120-e2304103120, 2023

PubMed Abstract: Glioma amplified sequence 41 (GAS41), which has the Yaf9, ENL, AF9, Taf14, and Sas5 (YEATS) domain that recognizes lysine acetylation (Kac), regulates gene expression as a subunit of the SRCAP (SNF2-related CREBBP activator protein) complex that deposits histone H2A.Z at promoters in eukaryotes. The YEATS domains of the proteins AF9 and ENL recognize Kac by hydrogen bonding the aromatic cage to arginine situated just before K9ac or K27ac in the N-terminal tail of histone H3. Curiously, the YEATS domain of GAS41 binds most preferentially to the sequence that contains K14ac of H3 (H3K14ac) but lacks the corresponding arginine. Here, we biochemically and structurally elucidated the molecular mechanism by which GAS41 recognizes H3K14ac. First, stable binding of the GAS41 YEATS domain to H3K14ac required the N terminus of H3 (H3NT). Second, we revealed a pocket in the GAS41 YEATS domain responsible for the H3NT binding by crystallographic and NMR analyses. This pocket is away from the aromatic cage that recognizes Kac and is unique to GAS41 among the YEATS family. Finally, we showed that E109 of GAS41, a residue essential for the formation of the H3NT-binding pocket, was crucial for chromatin occupancy of H2A.Z and GAS41 at H2A.Z-enriched promoter regions. These data suggest that binding of GAS41 to H3NT via its YEATS domain is essential for its intracellular function.

PubMed: 37844223
DOI: 10.1073/pnas.2304103120

実験手法

X-RAY DIFFRACTION (2.1 Å)