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6OP9

HER3 pseudokinase domain bound to bosutinib

4OTW」から置き換えられました
6OP9 の概要
エントリーDOI10.2210/pdb6op9/pdb
分子名称Receptor tyrosine-protein kinase erbB-3, 4-[(2,4-dichloro-5-methoxyphenyl)amino]-6-methoxy-7-[3-(4-methylpiperazin-1-yl)propoxy]quinoline-3-carbonitrile (3 entities in total)
機能のキーワードreceptor tyrosine kinase, pseudokinase, bosutinib, membrane, signaling protein, transferase-transferase inhibitor complex, transferase/transferase inhibitor
由来する生物種Homo sapiens (Human)
タンパク質・核酸の鎖数1
化学式量合計37472.37
構造登録者
Littlefield, P.,Agnew, C.,Jura, N. (登録日: 2019-04-24, 公開日: 2019-08-21, 最終更新日: 2024-05-22)
主引用文献Campbell, M.R.,Ruiz-Saenz, A.,Peterson, E.,Agnew, C.,Ayaz, P.,Garfinkle, S.,Littlefield, P.,Steri, V.,Oeffinger, J.,Sampang, M.,Shan, Y.,Shaw, D.E.,Jura, N.,Moasser, M.M.
Targetable HER3 functions driving tumorigenic signaling in HER2-amplified cancers.
Cell Rep, 38:110291-110291, 2022
Cited by
PubMed Abstract: Effective inactivation of the HER2-HER3 tumor driver has remained elusive because of the challenging attributes of the pseudokinase HER3. We report a structure-function study of constitutive HER2-HER3 signaling to identify opportunities for targeting. The allosteric activation of the HER2 kinase domain (KD) by the HER3 KD is required for tumorigenic signaling and can potentially be targeted by allosteric inhibitors. ATP binding within the catalytically inactive HER3 KD provides structural rigidity that is important for signaling, but this is mimicked, not opposed, by small molecule ATP analogs, reported here in a bosutinib-bound crystal structure. Mutational disruption of ATP binding and molecular dynamics simulation of the apo KD of HER3 identify a conformational coupling of the ATP pocket with a hydrophobic AP-2 pocket, analogous to EGFR, that is critical for tumorigenic signaling and feasible for targeting. The value of these potential target sites is confirmed in tumor growth assays using gene replacement techniques.
PubMed: 35108525
DOI: 10.1016/j.celrep.2021.110291
主引用文献が同じPDBエントリー
実験手法
X-RAY DIFFRACTION (2.501 Å)
構造検証レポート
Validation report summary of 6op9
検証レポート(詳細版)ダウンロードをダウンロード

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件を2026-04-15に公開中

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