transient receptor potential V family member 6 / TRP / human / channel / open / TRPV6 / inhibitor / blocker / antagonist / genistein / phytoestrogen / isoflavone / TRP channels / cancer / oncochannel / natural compound / membrane protein
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 / 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 ...Transient receptor potential cation channel subfamily V member 6 / Transient receptor potential cation channel subfamily V member 5/6 / 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 / Ion transport domain / Ion transport protein 類似検索 - ドメイン・相同性
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
米国
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
R01 NS083660
米国
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
R01 NS107253
米国
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)
R01 AR078814
米国
German Research Foundation (DFG)
464295817
ドイツ
引用
ジャーナル: Nat Commun / 年: 2023 タイトル: Structural mechanism of human oncochannel TRPV6 inhibition by the natural phytoestrogen genistein. 著者: Arthur Neuberger / Yury A Trofimov / Maria V Yelshanskaya / Kirill D Nadezhdin / Nikolay A Krylov / Roman G Efremov / Alexander I Sobolevsky / 要旨: Calcium-selective oncochannel TRPV6 is the major driver of cell proliferation in human cancers. While significant effort has been invested in the development of synthetic TRPV6 inhibitors, natural ...Calcium-selective oncochannel TRPV6 is the major driver of cell proliferation in human cancers. While significant effort has been invested in the development of synthetic TRPV6 inhibitors, natural channel blockers have been largely neglected. Here we report the structure of human TRPV6 in complex with the plant-derived phytoestrogen genistein, extracted from Styphnolobium japonicum, that was shown to inhibit cell invasion and metastasis in cancer clinical trials. Despite the pharmacological value, the molecular mechanism of TRPV6 inhibition by genistein has remained enigmatic. We use cryo-EM combined with electrophysiology, calcium imaging, mutagenesis, and molecular dynamics simulations to show that genistein binds in the intracellular half of the TRPV6 pore and acts as an ion channel blocker and gating modifier. Genistein binding to the open channel causes pore closure and a two-fold symmetrical conformational rearrangement in the S4-S5 and S6-TRP helix regions. The unprecedented mechanism of TRPV6 inhibition by genistein uncovers new possibilities in structure-based drug design.