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-Structure paper
タイトル | Structural Pharmacology of TRPV4 Antagonists. |
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ジャーナル・号・ページ | Adv Sci (Weinh), Vol. 11, Issue 25, Page e2401583, Year 2024 |
掲載日 | 2024年4月24日 |
著者 | Junping Fan / Chang Guo / Daohong Liao / Han Ke / Jing Lei / Wenjun Xie / Yuliang Tang / Makoto Tominaga / Zhuo Huang / Xiaoguang Lei / |
PubMed 要旨 | The nonselective calcium-permeable Transient Receptor Potential Cation Channel Subfamily V Member4 (TRPV4) channel regulates various physiological activities. Dysfunction of TRPV4 is linked to many ...The nonselective calcium-permeable Transient Receptor Potential Cation Channel Subfamily V Member4 (TRPV4) channel regulates various physiological activities. Dysfunction of TRPV4 is linked to many severe diseases, including edema, pain, gastrointestinal disorders, lung diseases, and inherited neurodegeneration. Emerging TRPV4 antagonists show potential clinical benefits. However, the molecular mechanisms of TRPV4 antagonism remain poorly understood. Here, cryo-electron microscopy (cryo-EM) structures of human TRPV4 are presented in-complex with two potent antagonists, revealing the detailed binding pockets and regulatory mechanisms of TRPV4 gating. Both antagonists bind to the voltage-sensing-like domain (VSLD) and stabilize the channel in closed states. These two antagonists induce TRPV4 to undergo an apparent fourfold to twofold symmetry transition. Moreover, it is demonstrated that one of the antagonists binds to the VSLD extended pocket, which differs from the canonical VSLD pocket. Complemented with functional and molecular dynamics simulation results, this study provides crucial mechanistic insights into TRPV4 regulation by small-molecule antagonists, which may facilitate future drug discovery targeting TRPV4. |
リンク | Adv Sci (Weinh) / PubMed:38659239 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 3.21 - 3.74 Å |
構造データ | EMDB-36659, PDB-8ju5: EMDB-36660, PDB-8ju6: EMDB-36675, PDB-8jvi: EMDB-36676, PDB-8jvj: |
化合物 |
ChemComp-F3L: ChemComp-XPW:
ChemComp-F9M: |
由来 |
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キーワード | MEMBRANE PROTEIN / Channel |