- EMDB-16817: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with ... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-16817
タイトル
Chaetomium thermophilum Get1/Get2 heterotetramer in complex with a Get3 dimer (amphipol)
マップデータ
試料
複合体: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with a Get3 dimer
複合体: Tail-anchored protein insertase Get1 and Get2
タンパク質・ペプチド: Protein GET2,Protein GET1
複合体: Dimeric ATPase Get3
タンパク質・ペプチド: ATPase GET3
リガンド: ZINC ION
キーワード
membrane protein insertion / GET pathway / tail anchored membrane protein / MEMBRANE PROTEIN
機能・相同性
機能・相同性情報
GET complex / tail-anchored membrane protein insertion into ER membrane / protein insertion into ER membrane / post-translational protein targeting to endoplasmic reticulum membrane / retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum / protein-membrane adaptor activity / endoplasmic reticulum membrane / ATP hydrolysis activity / ATP binding / membrane / metal ion binding 類似検索 - 分子機能
GET complex subunit Get2/sif1 / GET complex subunit GET2 / Get 1, fungi / Get1 family / CHD5-like protein / Arsenical pump ATPase, ArsA/GET3, eukaryotic / Arsenical pump ATPase, ArsA/GET3 / Anion-transporting ATPase-like domain / Anion-transporting ATPase / Helix hairpin bin domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Uncharacterized protein / Protein GET1 / Arsenite translocating ATPase-like protein 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2023 タイトル: The GET insertase exhibits conformational plasticity and induces membrane thinning. 著者: Melanie A McDowell / Michael Heimes / Giray Enkavi / Ákos Farkas / Daniel Saar / Klemens Wild / Blanche Schwappach / Ilpo Vattulainen / Irmgard Sinning / 要旨: The eukaryotic guided entry of tail-anchored proteins (GET) pathway mediates the biogenesis of tail-anchored (TA) membrane proteins at the endoplasmic reticulum. In the cytosol, the Get3 chaperone ...The eukaryotic guided entry of tail-anchored proteins (GET) pathway mediates the biogenesis of tail-anchored (TA) membrane proteins at the endoplasmic reticulum. In the cytosol, the Get3 chaperone captures the TA protein substrate and delivers it to the Get1/Get2 membrane protein complex (GET insertase), which then inserts the substrate via a membrane-embedded hydrophilic groove. Here, we present structures, atomistic simulations and functional data of human and Chaetomium thermophilum Get1/Get2/Get3. The core fold of the GET insertase is conserved throughout eukaryotes, whilst thinning of the lipid bilayer occurs in the vicinity of the hydrophilic groove to presumably lower the energetic barrier of membrane insertion. We show that the gating interaction between Get2 helix α3' and Get3 drives conformational changes in both Get3 and the Get1/Get2 membrane heterotetramer. Thus, we provide a framework to understand the conformational plasticity of the GET insertase and how it remodels its membrane environment to promote substrate insertion.
全体 : Chaetomium thermophilum Get1/Get2 heterotetramer in complex with ...
全体
名称: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with a Get3 dimer
要素
複合体: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with a Get3 dimer
複合体: Tail-anchored protein insertase Get1 and Get2
タンパク質・ペプチド: Protein GET2,Protein GET1
複合体: Dimeric ATPase Get3
タンパク質・ペプチド: ATPase GET3
リガンド: ZINC ION
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超分子 #1: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with ...
超分子
名称: Chaetomium thermophilum Get1/Get2 heterotetramer in complex with a Get3 dimer タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2 詳細: Get2-Get1 was expressed as a fusion protein in S. cerevisiae and Get3 was expressed in E. coli. The complex components were purified and reconstituted in vitro.
分子量
理論値: 165 KDa
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超分子 #2: Tail-anchored protein insertase Get1 and Get2
超分子
名称: Tail-anchored protein insertase Get1 and Get2 / タイプ: complex / ID: 2 / 親要素: 1 / 含まれる分子: #2