登録情報 データベース : EMDB / ID : EMD-42476 ダウンロードとリンクタイトル PLCb3-Gbg-Gaq complex on membranes マップデータ 詳細 試料複合体 : PLCb3-Gbg-Gaq complexタンパク質・ペプチド : Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1タンパク質・ペプチド : Guanine nucleotide-binding protein subunit gammaタンパク質・ペプチド : Guanine nucleotide-binding protein G(q) subunit alphaタンパク質・ペプチド : 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3リガンド : GUANOSINE-5'-DIPHOSPHATEリガンド : TETRAFLUOROALUMINATE IONリガンド : MAGNESIUM IONリガンド : CALCIUM IONリガンド : water 残り2件を表示 表示を減らす 詳細 キーワード PLCb3 / Gbg / Gaq / 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
phosphoinositide phospholipase C / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phosphatidylinositol metabolic process / PLC beta mediated events / phospholipase C-activating dopamine receptor signaling pathway / regulation of platelet activation / regulation of systemic arterial blood pressure / phosphatidylinositol phospholipase C activity / phototransduction, visible light ... phosphoinositide phospholipase C / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phosphatidylinositol metabolic process / PLC beta mediated events / phospholipase C-activating dopamine receptor signaling pathway / regulation of platelet activation / regulation of systemic arterial blood pressure / phosphatidylinositol phospholipase C activity / phototransduction, visible light / entrainment of circadian clock / phospholipase C activity / glutamate receptor signaling pathway / regulation of canonical Wnt signaling pathway / postsynaptic cytosol / action potential / Synthesis of IP3 and IP4 in the cytosol / phosphatidylinositol-mediated signaling / : / photoreceptor outer segment / lipid catabolic process / release of sequestered calcium ion into cytosol / GTPase activator activity / molecular function activator activity / G protein-coupled receptor binding / negative regulation of protein kinase activity / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / blood coagulation / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / nuclear membrane / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / molecular adaptor activity / protein stabilization / calmodulin binding / cadherin binding / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / calcium ion binding / protein-containing complex binding / GTP binding / Golgi apparatus / signal transduction / protein-containing complex / extracellular exosome / membrane / nucleus / metal ion binding / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 Phospholipase C-beta, C-terminal domain / PLC-beta C terminal / PLC-beta, PH domain / Phospholipase C-beta, C-terminal domain superfamily / PH domain / Phosphatidylinositol-4, 5-bisphosphate phosphodiesterase beta / Phosphoinositide-specific phospholipase C, EF-hand-like domain / Phosphoinositide-specific phospholipase C, efhand-like / G-protein alpha subunit, group Q / Phosphoinositide phospholipase C family ... Phospholipase C-beta, C-terminal domain / PLC-beta C terminal / PLC-beta, PH domain / Phospholipase C-beta, C-terminal domain superfamily / PH domain / Phosphatidylinositol-4, 5-bisphosphate phosphodiesterase beta / Phosphoinositide-specific phospholipase C, EF-hand-like domain / Phosphoinositide-specific phospholipase C, efhand-like / G-protein alpha subunit, group Q / Phosphoinositide phospholipase C family / Phospholipase C, phosphatidylinositol-specific, Y domain / Phosphatidylinositol-specific phospholipase C, Y domain / Phosphatidylinositol-specific phospholipase Y-box domain profile. / Phospholipase C, catalytic domain (part); domain Y / Phosphatidylinositol-specific phospholipase C, X domain / Phosphatidylinositol-specific phospholipase C, X domain / Phospholipase C, catalytic domain (part); domain X / Phosphatidylinositol-specific phospholipase X-box domain profile. / PLC-like phosphodiesterase, TIM beta/alpha-barrel domain superfamily / C2 domain / Protein kinase C conserved region 2 (CalB) / C2 domain / C2 domain profile. / C2 domain superfamily / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / EF-hand domain pair / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Guanine nucleotide-binding protein subunit gamma / Guanine nucleotide-binding protein G(q) subunit alpha / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.37 Å 詳細 データ登録者Falzone ME / MacKinnon R 資金援助 米国, 2件 詳細 詳細を隠すOrganization Grant number 国 Howard Hughes Medical Institute (HHMI) 米国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM142137 米国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2023タイトル : The mechanism of regulation of -catalyzed hydrolysis.著者 : Maria E Falzone / Roderick MacKinnon / 要旨 : () enzymes cleave phosphatidylinositol 4,5-bisphosphate ( producing and (diacylglycerol). modulates the function of many ion channels, while and regulate intracellular Ca levels and protein ... () enzymes cleave phosphatidylinositol 4,5-bisphosphate ( producing and (diacylglycerol). modulates the function of many ion channels, while and regulate intracellular Ca levels and protein phosphorylation by protein kinase C, respectively. enzymes are under the control of G protein coupled receptor signaling through direct interactions with G proteins and and have been shown to be coincidence detectors for dual stimulation of and -coupled receptors. are aqueous-soluble cytoplasmic enzymes but partition onto the membrane surface to access their lipid substrate, complicating their functional and structural characterization. Using newly developed methods, we recently showed that activates by recruiting it to the membrane. Using these same methods, here we show that increases the catalytic rate constant, , of . Since stimulation of by depends on an autoinhibitory element (the X-Y linker), we propose that produces partial relief of the X-Y linker autoinhibition through an allosteric mechanism. We also determined membrane-bound structures of the and complexes, which show that these G proteins can bind simultaneously and independently of each other to regulate activity. The structures rationalize a finding in the enzyme assay, that costimulation by both G proteins follows a product rule of each independent stimulus. We conclude that baseline activity of is strongly suppressed, but the effect of G proteins, especially acting together, provides a robust stimulus upon G protein stimulation. 履歴 登録 2023年10月24日 - ヘッダ(付随情報) 公開 2023年12月6日 - マップ公開 2023年12月6日 - 更新 2023年12月6日 - 現状 2023年12月6日 処理サイト : RCSB / 状態 : 公開
すべて表示 表示を減らす