登録情報 データベース : EMDB / ID : EMD-28268 ダウンロードとリンクタイトル Phospholipase C beta 3 (PLCb3) in complex with Gbg on lipid nanodiscs マップデータfinal sharpened map 詳細 試料複合体 : Phospholipase C beta 3 (PLCb3) in complex with two copies of Gbg on lipid nanodiscs.複合体 : Phospholipase C beta 3 (PLCb3)タンパク質・ペプチド : 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3複合体 : G protein beta subunit (Gb1)タンパク質・ペプチド : Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1複合体 : G protein gamma subunit 2 (Gg2)タンパク質・ペプチド : Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2複合体 : G protein beta subunit (Gb1)複合体 : G protein gamma subunit 2 (Gg2)リガンド : CALCIUM ION 詳細 キーワード PIP2 degradation / IP3 production / DAG production / G protein signaling / HYDROLASE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 / regulation of systemic arterial blood pressure / phosphatidylinositol phospholipase C activity / phospholipase C activity / postsynaptic cytosol / Synthesis of IP3 and IP4 in the cytosol ... phosphoinositide phospholipase C / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phosphatidylinositol metabolic process / PLC beta mediated events / regulation of systemic arterial blood pressure / phosphatidylinositol phospholipase C activity / phospholipase C activity / postsynaptic cytosol / Synthesis of IP3 and IP4 in the cytosol / phosphatidylinositol-mediated signaling / lipid catabolic process / release of sequestered calcium ion into cytosol / molecular function activator activity / 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 / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / 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 / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / Ras protein signal transduction / G alpha (q) signalling events / Extra-nuclear estrogen signaling / cell population proliferation / molecular adaptor activity / calmodulin binding / cadherin binding / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / calcium ion binding / protein-containing complex binding / signal transduction / protein-containing complex / extracellular exosome / membrane / nucleus / 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 / Phosphoinositide phospholipase C family / Phospholipase C, phosphatidylinositol-specific, Y domain ... 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 / 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-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 類似検索 - ドメイン・相同性 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / 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 : 3.3 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) F32GM142137 米国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2023タイトル : activates hydrolysis by recruiting and orienting on the membrane surface.著者 : Maria E Falzone / Roderick MacKinnon / 要旨 : catalyze the hydrolysis of phosphatidylinositol 4, 5-bisphosphate [Formula: see text] into [Formula: see text] [Formula: see text] and [Formula: see text] [Formula: see text]. [Formula: see text] ... catalyze the hydrolysis of phosphatidylinositol 4, 5-bisphosphate [Formula: see text] into [Formula: see text] [Formula: see text] and [Formula: see text] [Formula: see text]. [Formula: see text] regulates the activity of many membrane proteins, while and lead to increased intracellular Ca levels and activate protein kinase C, respectively. are regulated by G protein-coupled receptors through direct interaction with [Formula: see text] and [Formula: see text] and are aqueous-soluble enzymes that must bind to the cell membrane to act on their lipid substrate. This study addresses the mechanism by which [Formula: see text] activates 3. We show that 3 functions as a slow Michaelis-Menten enzyme ( [Formula: see text] ) on membrane surfaces. We used membrane partitioning experiments to study the solution-membrane localization equilibrium of 3. Its partition coefficient is such that only a small quantity of 3 exists in the membrane in the absence of [Formula: see text] . When [Formula: see text] is present, equilibrium binding on the membrane surface increases 3 in the membrane, increasing [Formula: see text] in proportion. Atomic structures on membrane vesicle surfaces show that two [Formula: see text] anchor 3 with its catalytic site oriented toward the membrane surface. Taken together, the enzyme kinetic, membrane partitioning, and structural data show that [Formula: see text] activates by increasing its concentration on the membrane surface and orienting its catalytic core to engage [Formula: see text] . This principle of activation explains rapid stimulated catalysis with low background activity, which is essential to the biological processes mediated by [Formula: see text], and . 履歴 登録 2022年9月28日 - ヘッダ(付随情報) 公開 2023年5月24日 - マップ公開 2023年5月24日 - 更新 2024年6月19日 - 現状 2024年6月19日 処理サイト : RCSB / 状態 : 公開
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