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-Structure paper
タイトル | Cannabinoid non-cannabidiol site modulation of TRPV2 structure and function. |
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ジャーナル・号・ページ | Nat Commun, Vol. 13, Issue 1, Page 7483, Year 2022 |
掲載日 | 2022年12月5日 |
著者 | Liying Zhang / Charlotte Simonsen / Lucie Zimova / Kaituo Wang / Lavanya Moparthi / Rachelle Gaudet / Maria Ekoff / Gunnar Nilsson / Ute A Hellmich / Viktorie Vlachova / Pontus Gourdon / Peter M Zygmunt / |
PubMed 要旨 | TRPV2 is a ligand-operated temperature sensor with poorly defined pharmacology. Here, we combine calcium imaging and patch-clamp electrophysiology with cryo-electron microscopy (cryo-EM) to explore ...TRPV2 is a ligand-operated temperature sensor with poorly defined pharmacology. Here, we combine calcium imaging and patch-clamp electrophysiology with cryo-electron microscopy (cryo-EM) to explore how TRPV2 activity is modulated by the phytocannabinoid Δ-tetrahydrocannabiorcol (C16) and by probenecid. C16 and probenecid act in concert to stimulate TRPV2 responses including histamine release from rat and human mast cells. Each ligand causes distinct conformational changes in TRPV2 as revealed by cryo-EM. Although the binding for probenecid remains elusive, C16 associates within the vanilloid pocket. As such, the C16 binding location is distinct from that of cannabidiol, partially overlapping with the binding site of the TRPV2 inhibitor piperlongumine. Taken together, we discover a new cannabinoid binding site in TRPV2 that is under the influence of allosteric control by probenecid. This molecular insight into ligand modulation enhances our understanding of TRPV2 in normal and pathophysiology. |
リンク | Nat Commun / PubMed:36470868 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 2.94 - 3.49 Å |
構造データ | EMDB-14745, PDB-7zjd: EMDB-14746, PDB-7zje: EMDB-14747, PDB-7zjg: EMDB-14748, PDB-7zjh: EMDB-14749, PDB-7zji: |
由来 |
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キーワード | MEMBRANE PROTEIN / temperature sensor |