登録情報 データベース : PDB / ID : 8el7 構造の表示 ダウンロードとリンクタイトル CryoEM structure of Resistance to Inhibitors of Cholinesterase-8B (Ric-8B) in complex with G alpha s 要素Guanine nucleotide-binding protein G(s) subunit alpha isoforms short Isoform 1 of Synembryn-B 詳細キーワード SIGNALING PROTEIN / chaperone / armadillo repeat / GEF / complex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
PKA activation in glucagon signalling / hair follicle placode formation / G-protein alpha-subunit binding / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway ... PKA activation in glucagon signalling / hair follicle placode formation / G-protein alpha-subunit binding / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / protein folding chaperone / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / guanyl-nucleotide exchange factor activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / platelet aggregation / cognition / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / positive regulation of cold-induced thermogenesis / G protein activity / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / G alpha (s) signalling events / G protein-coupled receptor signaling pathway / GTPase activity / centrosome / GTP binding / extracellular exosome / metal ion binding / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 Synembryn / Guanine nucleotide exchange factor, Ric8 / Guanine nucleotide exchange factor synembryn / Leucine-rich Repeat Variant / Leucine-rich Repeat Variant / G-protein alpha subunit, group S / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. ... Synembryn / Guanine nucleotide exchange factor, Ric8 / Guanine nucleotide exchange factor synembryn / Leucine-rich Repeat Variant / Leucine-rich Repeat Variant / G-protein alpha subunit, group S / 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 / Armadillo-like helical / Alpha Horseshoe / Armadillo-type fold / P-loop containing nucleoside triphosphate hydrolase / Mainly Alpha 類似検索 - ドメイン・相同性 Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Chaperone Ric-8B 類似検索 - 構成要素生物種 Homo sapiens (ヒト)Mus musculus (ハツカネズミ)手法 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 2.8 Å 詳細データ登録者 Papasergi-Scott, M.M. / Skiniotis, G. 資金援助 米国, 1件 詳細 詳細を隠す組織 認可番号 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R01 GM088242 米国
引用ジャーナル : Structure / 年 : 2023タイトル : Structures of Ric-8B in complex with Gα protein folding clients reveal isoform specificity mechanisms.著者 : Makaía M Papasergi-Scott / Frank E Kwarcinski / Maiya Yu / Ouliana Panova / Ann M Ovrutsky / Georgios Skiniotis / Gregory G Tall / 要旨 : Mammalian Ric-8 proteins act as chaperones to regulate the cellular abundance of heterotrimeric G protein α subunits. The Ric-8A isoform chaperones Gαi/o, Gα12/13, and Gαq/11 subunits, while Ric- ... Mammalian Ric-8 proteins act as chaperones to regulate the cellular abundance of heterotrimeric G protein α subunits. The Ric-8A isoform chaperones Gαi/o, Gα12/13, and Gαq/11 subunits, while Ric-8B acts on Gαs/olf subunits. Here, we determined cryoelectron microscopy (cryo-EM) structures of Ric-8B in complex with Gαs and Gαolf, revealing isoform differences in the relative positioning and contacts between the C-terminal α5 helix of Gα within the concave pocket formed by Ric-8 α-helical repeat elements. Despite the overall architectural similarity with our earlier structures of Ric-8A complexed to Gαq and Gαi1, Ric-8B distinctly accommodates an extended loop found only in Gαs/olf proteins. The structures, along with results from Ric-8 protein thermal stability assays and cell-based Gαolf folding assays, support a requirement for the Gα C-terminal region for binding specificity, and highlight that multiple structural elements impart specificity for Ric-8/G protein binding. 履歴 登録 2022年9月23日 登録サイト : RCSB / 処理サイト : RCSB改定 1.0 2023年3月1日 Provider : repository / タイプ : Initial release改定 1.1 2023年4月5日 Group : Database references / カテゴリ : citation / citation_authorItem : _citation.country / _citation.journal_abbrev ... _citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name 改定 1.2 2023年5月17日 Group : Database references / カテゴリ : citationItem : _citation.journal_volume / _citation.page_first / _citation.page_last改定 1.3 2024年11月6日 Group : Data collection / Refinement description / Structure summaryカテゴリ : chem_comp_atom / chem_comp_bond ... chem_comp_atom / chem_comp_bond / em_3d_fitting_list / em_admin / pdbx_entry_details / pdbx_modification_feature Item : _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id ... _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _em_admin.last_update / _pdbx_entry_details.has_protein_modification
すべて表示 表示を減らす