登録情報 データベース : EMDB / ID : EMD-30847 構造の表示 ダウンロードとリンクタイトル Structure of a human NHE1-CHP1 complex under pH 6.5 マップデータ 詳細 試料複合体 : Human NHE1-CHP1 complex under pH 6.5複合体 : Sodium/protein exchanger 1 (NHE1)タンパク質・ペプチド : Sodium/hydrogen exchanger 1複合体 : Calcineurin B homologous protein 1 (CHP1)タンパク質・ペプチド : Calcineurin B homologous protein 1リガンド : 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine 詳細 キーワード Transporter / MEMBRANE 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 phosphatase activity / positive regulation of sodium:proton antiporter activity / Sodium/Proton exchangers / regulation of the force of heart contraction by cardiac conduction / cation-transporting ATPase complex / membrane docking / negative regulation of protein autophosphorylation / Hyaluronan degradation / positive regulation of protein transport / regulation of cardiac muscle cell membrane potential ... negative regulation of phosphatase activity / positive regulation of sodium:proton antiporter activity / Sodium/Proton exchangers / regulation of the force of heart contraction by cardiac conduction / cation-transporting ATPase complex / membrane docking / negative regulation of protein autophosphorylation / Hyaluronan degradation / positive regulation of protein transport / regulation of cardiac muscle cell membrane potential / transporter complex / positive regulation of phospholipid biosynthetic process / cellular response to electrical stimulus / potassium:proton antiporter activity / positive regulation of glycoprotein biosynthetic process / sodium:proton antiporter activity / positive regulation of action potential / hyaluronan catabolic process / maintenance of cell polarity / regulation of pH / positive regulation of calcineurin-NFAT signaling cascade / sodium ion export across plasma membrane / membrane organization / protein phosphatase 2B binding / microtubule bundle formation / intracellular sodium ion homeostasis / regulation of stress fiber assembly / cardiac muscle cell differentiation / sodium ion import across plasma membrane / positive regulation of mitochondrial membrane permeability / : / negative regulation of calcineurin-NFAT signaling cascade / regulation of cardiac muscle contraction by calcium ion signaling / regulation of focal adhesion assembly / cardiac muscle cell contraction / response to acidic pH / negative regulation of protein import into nucleus / small GTPase-mediated signal transduction / cellular response to cold / positive regulation of cardiac muscle hypertrophy / endoplasmic reticulum-Golgi intermediate compartment / negative regulation of protein phosphorylation / positive regulation of the force of heart contraction / cellular response to antibiotic / protein kinase inhibitor activity / protein complex oligomerization / intercalated disc / potassium channel regulator activity / positive regulation of protein targeting to membrane / negative regulation of protein kinase activity / transport vesicle / cellular response to acidic pH / response to muscle stretch / cytoplasmic microtubule organization / phosphatidylinositol-4,5-bisphosphate binding / monoatomic ion transport / cellular response to epinephrine stimulus / protein export from nucleus / potassium ion transmembrane transport / negative regulation of protein ubiquitination / T-tubule / proton transmembrane transport / regulation of intracellular pH / stem cell differentiation / potassium ion transport / cellular response to mechanical stimulus / phospholipid binding / kinase binding / cellular response to insulin stimulus / calcium-dependent protein binding / cell migration / lamellipodium / microtubule cytoskeleton / positive regulation of cell growth / cellular response to hypoxia / microtubule binding / molecular adaptor activity / basolateral plasma membrane / membrane fusion / protein-macromolecule adaptor activity / calmodulin binding / apical plasma membrane / protein stabilization / positive regulation of apoptotic process / membrane raft / Golgi membrane / focal adhesion / calcium ion binding / negative regulation of apoptotic process / perinuclear region of cytoplasm / cell surface / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / mitochondrion / extracellular exosome / nucleoplasm / membrane / identical protein binding / nucleus / plasma membrane 類似検索 - 分子機能 : / Sodium/hydrogen exchanger 1-like / Sodium/hydrogen exchanger, regulatory region / Regulatory region of Na+/H+ exchanger NHE binds to calmodulin / Na+/H+ exchanger / Cation/H+ exchanger, CPA1 family / Cation/H+ exchanger / Sodium/hydrogen exchanger, transmembrane / EF-hand domain pair / EF-hand, calcium binding motif ... : / Sodium/hydrogen exchanger 1-like / Sodium/hydrogen exchanger, regulatory region / Regulatory region of Na+/H+ exchanger NHE binds to calmodulin / Na+/H+ exchanger / Cation/H+ exchanger, CPA1 family / Cation/H+ exchanger / Sodium/hydrogen exchanger, transmembrane / EF-hand domain pair / EF-hand, calcium binding motif / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair 類似検索 - ドメイン・相同性 Sodium/hydrogen exchanger 1 / Calcineurin B homologous protein 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 : 3.4 Å 詳細 データ登録者Dong Y / Gao Y / Li B / Zhang XC / Zhao Y 引用ジャーナル : Nat Commun / 年 : 2021タイトル : Structure and mechanism of the human NHE1-CHP1 complex.著者 : Yanli Dong / Yiwei Gao / Alina Ilie / DuSik Kim / Annie Boucher / Bin Li / Xuejun C Zhang / John Orlowski / Yan Zhao / 要旨 : Sodium/proton exchanger 1 (NHE1) is an electroneutral secondary active transporter present on the plasma membrane of most mammalian cells and plays critical roles in regulating intracellular pH and ... Sodium/proton exchanger 1 (NHE1) is an electroneutral secondary active transporter present on the plasma membrane of most mammalian cells and plays critical roles in regulating intracellular pH and volume homeostasis. Calcineurin B-homologous protein 1 (CHP1) is an obligate binding partner that promotes NHE1 biosynthetic maturation, cell surface expression and pH-sensitivity. Dysfunctions of either protein are associated with neurological disorders. Here, we elucidate structures of the human NHE1-CHP1 complex in both inward- and inhibitor (cariporide)-bound outward-facing conformations. We find that NHE1 assembles as a symmetrical homodimer, with each subunit undergoing an elevator-like conformational change during cation exchange. The cryo-EM map reveals the binding site for the NHE1 inhibitor cariporide, illustrating how inhibitors block transport activity. The CHP1 molecule differentially associates with these two conformational states of each NHE1 monomer, and this association difference probably underlies the regulation of NHE1 pH-sensitivity by CHP1. 履歴 登録 2021年1月3日 - ヘッダ(付随情報) 公開 2021年6月23日 - マップ公開 2021年6月23日 - 更新 2024年3月27日 - 現状 2024年3月27日 処理サイト : PDBj / 状態 : 公開
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