登録情報 データベース : EMDB / ID : EMD-22647 構造の表示 ダウンロードとリンクタイトル PIKfyve/Fig4/Vac14 complex centered on PIKfyve - map2 マップデータPIKfyve/Fig4/Vac14 complex centered on PIKfyve - map2 詳細 試料複合体 : PIKfyve/Fig4/Vac14 complexタンパク質・ペプチド : 1-phosphatidylinositol 3-phosphate 5-kinaseタンパク質・ペプチド : 1-phosphatidylinositol 3-phosphate 5-kinase 詳細 キーワード Lipid kinase / Lipid phosphatase / protein complex / LIPID BINDING 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
1-phosphatidylinositol-3-phosphate 5-kinase / 1-phosphatidylinositol-3-phosphate 5-kinase activity / 1-phosphatidylinositol-5-kinase activity / phosphatidylinositol 5-phosphate metabolic process / 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate metabolic process / phosphatidylinositol-3,5-bisphosphate 5-phosphatase activity / myelin assembly / Synthesis of PIPs at the late endosome membrane / phagosome-lysosome fusion / 1-phosphatidylinositol-4-phosphate 5-kinase activity ... 1-phosphatidylinositol-3-phosphate 5-kinase / 1-phosphatidylinositol-3-phosphate 5-kinase activity / 1-phosphatidylinositol-5-kinase activity / phosphatidylinositol 5-phosphate metabolic process / 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate metabolic process / phosphatidylinositol-3,5-bisphosphate 5-phosphatase activity / myelin assembly / Synthesis of PIPs at the late endosome membrane / phagosome-lysosome fusion / 1-phosphatidylinositol-4-phosphate 5-kinase activity / Synthesis of PIPs at the early endosome membrane / phagosome maturation / Synthesis of PIPs at the Golgi membrane / peptidyl-serine autophosphorylation / regulation of autophagosome assembly / melanosome organization / phosphatidylinositol biosynthetic process / retrograde transport, endosome to Golgi / protein targeting to membrane / regulation of reactive oxygen species biosynthetic process / vesicle membrane / protein localization to nucleus / receptor-mediated endocytosis of virus by host cell / neutrophil chemotaxis / antigen processing and presentation of exogenous peptide antigen via MHC class II / phagocytic vesicle membrane / late endosome membrane / cell-cell junction / early endosome membrane / cytoplasmic vesicle / eukaryotic translation initiation factor 2alpha kinase activity / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase activity / histone H3T6 kinase activity / histone H3T11 kinase activity / histone H3T45 kinase activity / non-specific serine/threonine protein kinase / endosome membrane / intracellular signal transduction / membrane raft / Golgi membrane / protein serine kinase activity / protein serine/threonine kinase activity / perinuclear region of cytoplasm / zinc ion binding / ATP binding / cytosol 類似検索 - 分子機能 PIKfyve, DEP domain / 1-phosphatidylinositol-3phosphate-5-kinase / 1-phosphatidylinositol-3-phosphate 5-kinase, PIPK catalytic domain / Phosphatidylinositol-4-phosphate 5-kinase, core / : / Phosphatidylinositol-4-phosphate 5-kinase, N-terminal / Phosphatidylinositol-4-phosphate 5-Kinase / Phosphatidylinositol phosphate kinase (PIPK) domain profile. / Phosphatidylinositol phosphate kinases / FYVE zinc finger ... PIKfyve, DEP domain / 1-phosphatidylinositol-3phosphate-5-kinase / 1-phosphatidylinositol-3-phosphate 5-kinase, PIPK catalytic domain / Phosphatidylinositol-4-phosphate 5-kinase, core / : / Phosphatidylinositol-4-phosphate 5-kinase, N-terminal / Phosphatidylinositol-4-phosphate 5-Kinase / Phosphatidylinositol phosphate kinase (PIPK) domain profile. / Phosphatidylinositol phosphate kinases / FYVE zinc finger / FYVE zinc finger / Protein present in Fab1, YOTB, Vac1, and EEA1 / Zinc finger, FYVE-related / Zinc finger FYVE/FYVE-related type profile. / Domain found in Dishevelled, Egl-10, and Pleckstrin (DEP) / DEP domain profile. / Domain found in Dishevelled, Egl-10, and Pleckstrin / DEP domain / TCP-1-like chaperonin intermediate domain superfamily / GroEL-like apical domain superfamily / TCP-1/cpn60 chaperonin family / Chaperonin Cpn60/GroEL/TCP-1 family / Zinc finger, FYVE/PHD-type / Zinc finger, RING/FYVE/PHD-type / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily 類似検索 - ドメイン・相同性 Phosphoinositide kinase, FYVE-type zinc finger containing / 1-phosphatidylinositol 3-phosphate 5-kinase 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 : 6.6 Å 詳細 データ登録者Lees JA / Reinisch KM 資金援助 米国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM131715 米国
引用ジャーナル : Mol Cell / 年 : 2020タイトル : Insights into Lysosomal PI(3,5)P Homeostasis from a Structural-Biochemical Analysis of the PIKfyve Lipid Kinase Complex.著者 : Joshua A Lees / PeiQi Li / Nikit Kumar / Lois S Weisman / Karin M Reinisch / 要旨 : The phosphoinositide PI(3,5)P, generated exclusively by the PIKfyve lipid kinase complex, is key for lysosomal biology. Here, we explore how PI(3,5)P levels within cells are regulated. We find the ... The phosphoinositide PI(3,5)P, generated exclusively by the PIKfyve lipid kinase complex, is key for lysosomal biology. Here, we explore how PI(3,5)P levels within cells are regulated. We find the PIKfyve complex comprises five copies of the scaffolding protein Vac14 and one copy each of the lipid kinase PIKfyve, generating PI(3,5)P from PI3P and the lipid phosphatase Fig4, reversing the reaction. Fig4 is active as a lipid phosphatase in the ternary complex, whereas PIKfyve within the complex cannot access membrane-incorporated phosphoinositides due to steric constraints. We find further that the phosphoinositide-directed activities of both PIKfyve and Fig4 are regulated by protein-directed activities within the complex. PIKfyve autophosphorylation represses its lipid kinase activity and stimulates Fig4 lipid phosphatase activity. Further, Fig4 is also a protein phosphatase acting on PIKfyve to stimulate its lipid kinase activity, explaining why catalytically active Fig4 is required for maximal PI(3,5)P production by PIKfyve in vivo. 履歴 登録 2020年9月9日 - ヘッダ(付随情報) 公開 2020年10月21日 - マップ公開 2020年10月21日 - 更新 2024年3月6日 - 現状 2024年3月6日 処理サイト : RCSB / 状態 : 公開
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