登録情報 データベース : EMDB / ID : EMD-31971 ダウンロードとリンクタイトル Cryo-EM structure of the human P4-type flippase ATP8B1-CDC50A in the auto-inhibited E2Pi-PS state マップデータ 詳細 試料複合体 : ATP8B1-CDC50A complexタンパク質・ペプチド : Phospholipid-transporting ATPase ICタンパク質・ペプチド : Cell cycle control protein 50Aリガンド : O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine 詳細 キーワード auto-inhibited / phosphorylated / lipid flippase / LIPID TRANSPORT / TRANSLOCASE-LIPID TRANSPORT 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
vestibulocochlear nerve formation / regulation of plasma membrane organization / regulation of microvillus assembly / positive regulation of phospholipid translocation / phosphatidylcholine flippase activity / aminophospholipid flippase activity / aminophospholipid transport / phosphatidylserine flippase activity / protein localization to endosome / ATPase-coupled intramembrane lipid transporter activity ... vestibulocochlear nerve formation / regulation of plasma membrane organization / regulation of microvillus assembly / positive regulation of phospholipid translocation / phosphatidylcholine flippase activity / aminophospholipid flippase activity / aminophospholipid transport / phosphatidylserine flippase activity / protein localization to endosome / ATPase-coupled intramembrane lipid transporter activity / phospholipid-translocating ATPase complex / positive regulation of protein exit from endoplasmic reticulum / phosphatidylserine floppase activity / inner ear receptor cell development / phosphatidylcholine floppase activity / xenobiotic transmembrane transport / stereocilium / bile acid metabolic process / cardiolipin binding / apical protein localization / P-type phospholipid transporter / phospholipid translocation / azurophil granule membrane / bile acid and bile salt transport / transport vesicle membrane / Golgi organization / Ion transport by P-type ATPases / specific granule membrane / regulation of chloride transport / sensory perception of sound / trans-Golgi network / positive regulation of neuron projection development / late endosome membrane / early endosome membrane / monoatomic ion transmembrane transport / nuclear body / apical plasma membrane / negative regulation of DNA-templated transcription / Neutrophil degranulation / structural molecule activity / magnesium ion binding / endoplasmic reticulum / Golgi apparatus / ATP hydrolysis activity / nucleoplasm / ATP binding / membrane / plasma membrane / cytosol 類似検索 - 分子機能 CDC50/LEM3 family / LEM3 (ligand-effect modulator 3) family / CDC50 family / P-type ATPase, subfamily IV / P-type ATPase, C-terminal / P-type ATPase, N-terminal / Phospholipid-translocating ATPase N-terminal / Phospholipid-translocating P-type ATPase C-terminal / Cation transport ATPase (P-type) / E1-E2 ATPase / P-type ATPase, haloacid dehalogenase domain ... CDC50/LEM3 family / LEM3 (ligand-effect modulator 3) family / CDC50 family / P-type ATPase, subfamily IV / P-type ATPase, C-terminal / P-type ATPase, N-terminal / Phospholipid-translocating ATPase N-terminal / Phospholipid-translocating P-type ATPase C-terminal / Cation transport ATPase (P-type) / E1-E2 ATPase / P-type ATPase, haloacid dehalogenase domain / P-type ATPase, phosphorylation site / P-type ATPase, cytoplasmic domain N / E1-E2 ATPases phosphorylation site. / P-type ATPase, A domain superfamily / P-type ATPase / P-type ATPase, transmembrane domain superfamily / HAD superfamily / HAD-like superfamily 類似検索 - ドメイン・相同性 Phospholipid-transporting ATPase IC / Cell cycle control protein 50A 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 : 3.98 Å 詳細 データ登録者Chen MT / Chen Y 資金援助 中国, 2件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Science and Technology (MoST, China) 2019YFA0508500 中国 Chinese Academy of Sciences XDB37020202 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 the activation of autoinhibited human lipid flippase ATP8B1 upon substrate binding.著者 : Meng-Ting Cheng / Yu Chen / Zhi-Peng Chen / Xin Liu / Zhiyong Zhang / Yuxing Chen / Wen-Tao Hou / Cong-Zhao Zhou / 要旨 : SignificanceATP8B1 is a P4 ATPase that maintains membrane asymmetry by transporting phospholipids across the cell membrane. Disturbance of lipid asymmetry will lead to the imbalance of the cell ... SignificanceATP8B1 is a P4 ATPase that maintains membrane asymmetry by transporting phospholipids across the cell membrane. Disturbance of lipid asymmetry will lead to the imbalance of the cell membrane and eventually, cell death. Thus, defects in ATP8B1 are usually associated with severe human diseases, such as intrahepatic cholestasis. The present structures of ATP8B1 complexed with its auxiliary noncatalytic partners CDC50A and CDC50B reveal an autoinhibited state of ATP8B1 that could be released upon substrate binding. Moreover, release of this autoinhibition could be facilitated by the bile acids, which are key factors that alter the membrane asymmetry of hepatocytes. This enabled us to figure out a feedback loop of bile acids and lipids across the cell membrane. 履歴 登録 2021年9月16日 - ヘッダ(付随情報) 公開 2022年3月30日 - マップ公開 2022年3月30日 - 更新 2024年10月16日 - 現状 2024年10月16日 処理サイト : PDBj / 状態 : 公開
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