登録情報 データベース : EMDB / ID : EMD-22458 構造の表示 ダウンロードとリンクタイトル Structure of the Visual Signaling Complex between Transducin and Phosphodiesterase 6 マップデータVisual Signaling Complex between Transducin and Phosphodiesterase 6 詳細 試料複合体 : Complex of Transducin and Phosphodiesterase 6複合体 : Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha (E.C.3.1.4.35), Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta (E.C.3.1.4.35), Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (E.C.3.1.4.35)タンパク質・ペプチド : Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alphaタンパク質・ペプチド : Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit betaタンパク質・ペプチド : Guanine nucleotide-binding protein G(t) subunit alpha-1, Guanine nucleotide-binding protein G(i) subunit alpha-1 chimera複合体 : Guanine nucleotide-binding protein G(t) subunit alpha-1, Guanine nucleotide-binding protein G(i) subunit alpha-1 chimera,Gt-alpha/Gi1-alpha chimeraタンパク質・ペプチド : Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gammaリガンド : ZINC IONリガンド : MAGNESIUM IONリガンド : 2-{2-ETHOXY-5-[(4-ETHYLPIPERAZIN-1-YL)SULFONYL]PHENYL}-5-METHYL-7-PROPYLIMIDAZO[5,1-F][1,2,4]TRIAZIN-4(1H)-ONEリガンド : GUANOSINE-3',5'-MONOPHOSPHATEリガンド : GUANOSINE-5'-TRIPHOSPHATE 残り2件を表示 表示を減らす 詳細 キーワード G protein / G protein-effector complex / Transducin / phosphodiesterase 6 / phototransduction / GPCR signaling / SIGNALING PROTEIN機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
negative regulation of cyclic-nucleotide phosphodiesterase activity / 3',5'-cyclic-GMP phosphodiesterase / calmodulin-activated dual specificity 3',5'-cyclic-GMP, 3',5'-cyclic-AMP phosphodiesterase activity / calmodulin-activated 3',5'-cyclic-GMP phosphodiesterase activity / detection of light stimulus involved in visual perception / G protein-coupled receptor complex / Inactivation, recovery and regulation of the phototransduction cascade / positive regulation of G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / phototransduction, visible light ... negative regulation of cyclic-nucleotide phosphodiesterase activity / 3',5'-cyclic-GMP phosphodiesterase / calmodulin-activated dual specificity 3',5'-cyclic-GMP, 3',5'-cyclic-AMP phosphodiesterase activity / calmodulin-activated 3',5'-cyclic-GMP phosphodiesterase activity / detection of light stimulus involved in visual perception / G protein-coupled receptor complex / Inactivation, recovery and regulation of the phototransduction cascade / positive regulation of G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / phototransduction, visible light / Ca2+ pathway / positive regulation of epidermal growth factor receptor signaling pathway / photoreceptor outer segment membrane / G alpha (i) signalling events / entrainment of circadian clock by photoperiod / acyl binding / cGMP binding / response to light stimulus / 3',5'-cyclic-GMP phosphodiesterase activity / phototransduction / 3',5'-cyclic-AMP phosphodiesterase activity / cAMP-mediated signaling / photoreceptor inner segment / visual perception / G protein-coupled receptor binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / photoreceptor disc membrane / GDP binding / heterotrimeric G-protein complex / retina development in camera-type eye / molecular adaptor activity / positive regulation of MAPK cascade / GTPase activity / protein kinase binding / GTP binding / zinc ion binding / metal ion binding / cytoplasm 類似検索 - 分子機能 Retinal cGMP phosphodiesterase, gamma subunit / Retinal cGMP phosphodiesterase, gamma subunit superfamily / Retinal cGMP phosphodiesterase, gamma subunit / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / 3'5'-cyclic nucleotide phosphodiesterase, conserved site / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase domain signature. / 3'5'-cyclic nucleotide phosphodiesterase domain profile. ... Retinal cGMP phosphodiesterase, gamma subunit / Retinal cGMP phosphodiesterase, gamma subunit superfamily / Retinal cGMP phosphodiesterase, gamma subunit / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / 3'5'-cyclic nucleotide phosphodiesterase, conserved site / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase domain signature. / 3'5'-cyclic nucleotide phosphodiesterase domain profile. / GAF domain / Domain present in phytochromes and cGMP-specific phosphodiesterases. / GAF domain / Metal dependent phosphohydrolases with conserved 'HD' motif. / GAF-like domain superfamily / HD/PDEase domain / G-protein alpha subunit, group I / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Guanine nucleotide-binding protein G(t) subunit alpha-1 / Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma / Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha / Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta 類似検索 - 構成要素生物種 Bos taurus (ウシ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.2 Å 詳細 データ登録者Gao Y / Eskici G 資金援助 米国, 3件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R35 GM122575 米国 National Institutes of Health/National Cancer Institute (NIH/NCI) R01 CA201402 米国 National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) R01 NS092695 米国
引用ジャーナル : Mol Cell / 年 : 2020タイトル : Structure of the Visual Signaling Complex between Transducin and Phosphodiesterase 6.著者 : Yang Gao / Gözde Eskici / Sekar Ramachandran / Frédéric Poitevin / Alpay Burak Seven / Ouliana Panova / Georgios Skiniotis / Richard A Cerione / 要旨 : Heterotrimeric G proteins communicate signals from activated G protein-coupled receptors to downstream effector proteins. In the phototransduction pathway responsible for vertebrate vision, the G ... Heterotrimeric G proteins communicate signals from activated G protein-coupled receptors to downstream effector proteins. In the phototransduction pathway responsible for vertebrate vision, the G protein-effector complex is composed of the GTP-bound transducin α subunit (Gα·GTP) and the cyclic GMP (cGMP) phosphodiesterase 6 (PDE6), which stimulates cGMP hydrolysis, leading to hyperpolarization of the photoreceptor cell. Here we report a cryo-electron microscopy (cryoEM) structure of PDE6 complexed to GTP-bound Gα. The structure reveals two Gα·GTP subunits engaging the PDE6 hetero-tetramer at both the PDE6 catalytic core and the PDEγ subunits, driving extensive rearrangements to relieve all inhibitory constraints on enzyme catalysis. Analysis of the conformational ensemble in the cryoEM data highlights the dynamic nature of the contacts between the two Gα·GTP subunits and PDE6 that supports an alternating-site catalytic mechanism. 履歴 登録 2020年8月15日 - ヘッダ(付随情報) 公開 2020年10月21日 - マップ公開 2020年10月21日 - 更新 2024年5月29日 - 現状 2024年5月29日 処理サイト : RCSB / 状態 : 公開
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