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9QB8

Lymphostatin - Conformation II - pH 8 Hepes

9QB8 の概要
エントリーDOI10.2210/pdb9qb8/pdb
EMDBエントリー52990
分子名称Lymphostatin, MANGANESE (II) ION (2 entities in total)
機能のキーワードvirulence factor lymphostatin lifa conformation ii, toxin
由来する生物種Escherichia coli O127:H6
タンパク質・核酸の鎖数1
化学式量合計366476.16
構造登録者
Bottcher, B.,Schneider, R.,Griessmann, M.,Ramussen, T. (登録日: 2025-02-28, 公開日: 2025-07-16, 最終更新日: 2025-07-23)
主引用文献Griessmann, M.,Rasmussen, T.,Flegler, V.J.,Kraft, C.,Schneider, R.,Hateley, M.,Spantzel, L.,Stevens, M.P.,Borsch, M.,Bottcher, B.
Structure of lymphostatin, a large multi-functional virulence factor of pathogenic Escherichia coli.
Nat Commun, 16:5389-5389, 2025
Cited by
PubMed Abstract: Lymphostatin is a key virulence factor of enteropathogenic and enterohaemorrhagic Escherichia coli, playing roles in bacterial colonisation of the gut and in the inhibition of lymphocyte proliferation and proinflammatory responses. The protein's glycosyltransferase and cysteine protease motifs are required for activity against lymphocytes, but high-resolution structural information has proven elusive. Here, we describe the structure of lymphostatin from enteropathogenic E. coli O127:H6, determined by electron cryo-microscopy at different pH values. We observe three conformations of a highly complex molecule with two glycosyltransferase domains, one PaToxP-like protease domain, an ADP-ribosyltransferase domain, a vertex domain and a delivery domain. Long linkers hold these domains together and occlude the catalytic sites of the N-terminal glycosyltransferase and protease domains. Lymphostatin binds to bovine T-lymphocytes and HEK-293T cells, forming clusters at the plasma membrane that are internalized. With six distinct domains, lymphostatin can be regarded as a multitool of pathogenic Escherichia coli, enabling complex interactions with host cells.
PubMed: 40562750
DOI: 10.1038/s41467-025-60995-9
主引用文献が同じPDBエントリー
実験手法
ELECTRON MICROSCOPY (3.4 Å)
構造検証レポート
Validation report summary of 9qb8
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2025-07-23に公開中

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