登録情報 データベース : EMDB / ID : EMD-33230 ダウンロードとリンクタイトル Cryo-EM structure of the galanin-bound GALR2-miniGq complex マップデータ 詳細 試料複合体 : Galanin-bound Galanin receptor 2 in complex with Galphaq, Gbeta/gamma subunit and single chain variable fragment (scFv16)タンパク質・ペプチド : Galaninタンパク質・ペプチド : Guanine nucleotide-binding protein G(q)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 G(I)/G(S)/G(O) subunit gamma-2タンパク質・ペプチド : single Fab chain (svFv16)タンパク質・ペプチド : Galanin receptor type 2 残り2件を表示 表示を減らす 詳細機能・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
galanin-activated signaling pathway / galanin receptor binding / type 1 galanin receptor binding / type 2 galanin receptor binding / type 3 galanin receptor binding / galanin receptor activity / positive regulation of large conductance calcium-activated potassium channel activity / positive regulation of timing of catagen / positive regulation of cortisol secretion / regulation of glucocorticoid metabolic process ... galanin-activated signaling pathway / galanin receptor binding / type 1 galanin receptor binding / type 2 galanin receptor binding / type 3 galanin receptor binding / galanin receptor activity / positive regulation of large conductance calcium-activated potassium channel activity / positive regulation of timing of catagen / positive regulation of cortisol secretion / regulation of glucocorticoid metabolic process / inositol phosphate metabolic process / negative regulation of lymphocyte proliferation / phosphatidylinositol metabolic process / neuropeptide hormone activity / neuropeptide binding / feeding behavior / insulin secretion / peptide hormone binding / response to immobilization stress / neuropeptide signaling pathway / protein kinase A signaling / cAMP-mediated signaling / Peptide ligand-binding receptors / 分泌 / muscle contraction / Olfactory Signaling Pathway / Activation of the phototransduction cascade / response to insulin / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 繊毛 / 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 / response to estrogen / 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 / neuron projection development / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / G alpha (i) signalling events / positive regulation of cytosolic calcium ion concentration / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / learning or memory / cell surface receptor signaling pathway / response to xenobiotic stimulus / positive regulation of apoptotic process / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / neuronal cell body / シナプス / protein-containing complex binding / シグナル伝達 / positive regulation of transcription by RNA polymerase II / extracellular space / extracellular exosome / extracellular region / 生体膜 / 細胞膜 / 細胞質基質 / 細胞質 類似検索 - 分子機能 Galanin receptor 2 / Galanin receptor family / Galanin / Galanin precursor / Galanin message associated peptide (GMAP) / Galanin / Galanin message associated peptide (GMAP) / Galanin signature. / Galanin / Serpentine type 7TM GPCR chemoreceptor Srsx ... Galanin receptor 2 / Galanin receptor family / Galanin / Galanin precursor / Galanin message associated peptide (GMAP) / Galanin / Galanin message associated peptide (GMAP) / Galanin signature. / Galanin / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / 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リピート / WD40リピート / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily 類似検索 - ドメイン・相同性 Galanin receptor type 2 / Galanin peptides / 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 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Jiang W / Zheng S 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Science and Technology (MoST, China) 中国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2022タイトル : Structural insights into galanin receptor signaling.著者 : Wentong Jiang / Sanduo Zheng / 要旨 : Galanin is a biologically active neuropeptide, and functions through three distinct G protein–coupled receptors (GPCRs), namely GALR1, GALR2, and GALR3. GALR signaling plays important roles in ... Galanin is a biologically active neuropeptide, and functions through three distinct G protein–coupled receptors (GPCRs), namely GALR1, GALR2, and GALR3. GALR signaling plays important roles in regulating various physiological processes such as energy metabolism, neuropathic pain, epileptic activity, and sleep homeostasis. GALR1 and GALR3 signal through the Gi/o pathway, whereas GALR2 signals mainly through the Gq/11 pathway. However, the molecular basis for galanin recognition and G protein selectivity of GALRs remains poorly understood. Here, we report the cryoelectron microscopy structures of the GALR1-Go and the GALR2-Gq complexes bound to the endogenous ligand galanin or spexin. The galanin peptide mainly adopts an alpha helical structure, which binds at the extracellular vestibule of the receptors, nearly parallel to the membrane plane without penetrating deeply into the receptor core. Structural analysis combined with functional studies reveals important structural determinants for the G protein selectivity of GALRs as well as other class A GPCRs. In addition, we show that the zinc ion is a negative allosteric regulator of GALR1 but not GALR2. Our studies provide insight into the mechanisms of G protein selectivity of GPCRs and highlight a potential function of the neuromodulator zinc ion as a modulator of GPCR signaling in the central nervous system. 履歴 登録 2022年4月18日 - ヘッダ(付随情報) 公開 2022年6月29日 - マップ公開 2022年6月29日 - 更新 2022年6月29日 - 現状 2022年6月29日 処理サイト : PDBj / 状態 : 公開
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