- PDB-7s8c: Cryo-EM structure of human TRPV6 in complex with inhibitor econazole -
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基本情報
登録情報
データベース: PDB / ID: 7s8c
タイトル
Cryo-EM structure of human TRPV6 in complex with inhibitor econazole
要素
Transient receptor potential cation channel subfamily V member 6
キーワード
MEMBRANE PROTEIN / Transient Receptor Potential V Family Member 6 / TRP / channel / econazole / inhibitor / antagonist / cNW11 / nanodiscs / TRPV6
機能・相同性
機能・相同性情報
parathyroid hormone secretion / regulation of calcium ion-dependent exocytosis / TRP channels / calcium ion import across plasma membrane / calcium ion homeostasis / calcium channel complex / calcium channel activity / calcium ion transmembrane transport / response to calcium ion / calcium ion transport ...parathyroid hormone secretion / regulation of calcium ion-dependent exocytosis / TRP channels / calcium ion import across plasma membrane / calcium ion homeostasis / calcium channel complex / calcium channel activity / calcium ion transmembrane transport / response to calcium ion / calcium ion transport / calmodulin binding / identical protein binding / metal ion binding / plasma membrane 類似検索 - 分子機能
Transient receptor potential cation channel subfamily V member 6 / Transient receptor potential cation channel subfamily V member 5/6 / Ankyrin repeat-containing domain / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat ...Transient receptor potential cation channel subfamily V member 6 / Transient receptor potential cation channel subfamily V member 5/6 / Ankyrin repeat-containing domain / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat / Ion transport domain / Ion transport protein / Alpha Horseshoe / Mainly Alpha 類似検索 - ドメイン・相同性
Chem-ECL / Chem-POV / CHOLESTEROL HEMISUCCINATE / Transient receptor potential cation channel subfamily V member 6 類似検索 - 構成要素
National Institutes of Health/National Cancer Institute (NIH/NCI)
R01 CA206573
ドイツ
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
R01 NS083660
ドイツ
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
R01 NS107253
ドイツ
National Science Foundation (NSF, United States)
1818086
ドイツ
German Research Foundation (DFG)
464295817
ドイツ
引用
ジャーナル: Nat Commun / 年: 2021 タイトル: Structural mechanisms of TRPV6 inhibition by ruthenium red and econazole. 著者: Arthur Neuberger / Kirill D Nadezhdin / Alexander I Sobolevsky / 要旨: TRPV6 is a calcium-selective ion channel implicated in epithelial Ca uptake. TRPV6 inhibitors are needed for the treatment of a broad range of diseases associated with disturbed calcium homeostasis, ...TRPV6 is a calcium-selective ion channel implicated in epithelial Ca uptake. TRPV6 inhibitors are needed for the treatment of a broad range of diseases associated with disturbed calcium homeostasis, including cancers. Here we combine cryo-EM, calcium imaging, and mutagenesis to explore molecular bases of human TRPV6 inhibition by the antifungal drug econazole and the universal ion channel blocker ruthenium red (RR). Econazole binds to an allosteric site at the channel's periphery, where it replaces a lipid. In contrast, RR inhibits TRPV6 by binding in the middle of the ion channel's selectivity filter and plugging its pore like a bottle cork. Despite different binding site locations, both inhibitors induce similar conformational changes in the channel resulting in closure of the gate formed by S6 helices bundle crossing. The uncovered molecular mechanisms of TRPV6 inhibition can guide the design of a new generation of clinically useful inhibitors.