+検索条件
-Structure paper
| タイトル | Cyclic-dinucleotide-induced filamentous assembly of phospholipases governs broad CBASS immunity. |
|---|---|
| ジャーナル・号・ページ | Cell, Vol. 188, Issue 14, Page 3744-3756.e16, Year 2025 |
| 掲載日 | 2025年7月10日 |
著者 | Jingge Wang / Zhao Li / Hao Lang / Wenfeng Fu / Yina Gao / Sen Yin / Panpan Sun / Zhaolong Li / Jiafeng Huang / Songqing Liu / Yun Zhu / Fei Sun / Dong Li / Pu Gao / Ang Gao / ![]() |
| PubMed 要旨 | Cyclic-oligonucleotide-based antiphage signaling systems (CBASS), a widespread antiviral bacterial immune system homologous to the mammalian cGAS-STING pathway, synthesizes cyclic nucleotide signals ...Cyclic-oligonucleotide-based antiphage signaling systems (CBASS), a widespread antiviral bacterial immune system homologous to the mammalian cGAS-STING pathway, synthesizes cyclic nucleotide signals and triggers effector proteins to induce cell death and prevent viral propagation. Among various CBASS effectors, phospholipase effectors are the first to be discovered and are one of the most widespread families that sense cyclic dinucleotides to degrade cell membrane phospholipids. Here, we report that CBASS phospholipases assemble from a dimeric inactive state into active higher-order filamentous oligomers upon sensing cyclic dinucleotides. Using a combined approach of cryo-electron microscopy and X-ray crystallography, we have determined the structures of CBASS phospholipase in the inactive dimeric state, the cyclic-dinucleotide-bound active higher-order state, and the substrate-analog-bound catalytic mimicry state, thereby visualizing the complete conformational reorganization process. Complemented by functional assays of intermolecular binding, phospholipase enzymatic activity, in vitro membrane disruption, and in vivo antiphage efficiency, our work elucidates the mechanisms of assembly and activation of CBASS phospholipases. |
リンク | Cell / PubMed:40345202 |
| 手法 | EM (単粒子) / X線回折 |
| 解像度 | 1.648 - 3.33 Å |
| 構造データ | EMDB-60745, PDB-9ion: EMDB-60746, PDB-9iop: ![]() PDB-9iom: ![]() PDB-9ioq: |
| 化合物 | ![]() ChemComp-HOH: ![]() PDB-1aep: ![]() ChemComp-MAY: |
| 由来 |
|
キーワード | LIPID BINDING PROTEIN / CapE / patatin-like phospholipase protein |
ムービー
コントローラー
構造ビューア
万見文献について



著者
リンク









キーワード