5H1T

Complex structure of TRIM24 PHD-bromodomain and inhibitor 1

5H1T の概要

• エントリーDOI: 10.2210/pdb5h1t/pdb
• 関連するPDBエントリー: 5H1U 5H1V
• 分子名称: Transcription intermediary factor 1-alpha, ZINC ION, methyl 6-azanyl-3,4-dihydro-2H-quinoline-1-carboxylate, ... (5 entities in total)
• 機能のキーワード: transcription, transcription inhibitor, transcription-transcription inhibitor complex, transcription/transcription inhibitor
• 由来する生物種: Homo sapiens (Human)
• 細胞内の位置: Nucleus : O15164
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 86429.77

構造登録者

Liu, J. (登録日: 2016-10-11, 公開日: 2017-02-22, 最終更新日: 2023-11-08)

主引用文献

Liu, J.,Li, F.,Bao, H.,Jiang, Y.,Zhang, S.,Ma, R.,Gao, J.,Wu, J.,Ruan, K.
The polar warhead of a TRIM24 bromodomain inhibitor rearranges a water-mediated interaction network
FEBS J., 284:1082-1095, 2017

PubMed Abstract: Tripartite motif-containing protein 24 (TRIM24) is closely correlated with multiple cancers, and a recent study demonstrated that the bromodomain of TRIM24 is essential for the proliferation of lethal castration-resistant prostate cancer. Here, we identify three new inhibitors of the TRIM24 bromodomain using NMR fragment-based screening. The crystal structures of two new inhibitors in complex with the TRIM24 bromodomain reveal that the water-bridged interaction network is conserved in the same fashion as those for known benzoimidazolone inhibitors. Interestingly, the polar substitution on the warhead of one new inhibitor pulls the whole ligand approximately 2 Å into the inner side pocket of the TRIM24 bromodomain, and thus exhibits a binding mode significantly different from other known bromodomain ligands. This mode provides a useful handle for further hit-to-lead evolution toward novel inhibitors of the TRIM24 bromodomain.

PubMed: 28207202
DOI: 10.1111/febs.14041

実験手法

X-RAY DIFFRACTION (1.951 Å)