- PDB-7ru9: Metazoan pre-targeting GET complex (cBUGG-in) -
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基本情報
登録情報
データベース: PDB / ID: 7ru9
タイトル
Metazoan pre-targeting GET complex (cBUGG-in)
要素
ATPase GET3
Golgi to ER traffic protein 4 homolog
Large proline-rich protein BAG6
Ubiquitin-like protein 4A
キーワード
CHAPERONE / ATPase / complex / membrane protein chaperone
機能・相同性
機能・相同性情報
BAT3 complex / immune response-activating cell surface receptor signaling pathway / GET complex / NK T cell activation / ubiquitin-like protein transferase activity / protein carrier activity / maintenance of unfolded protein / tail-anchored membrane protein insertion into ER membrane / positive regulation of ERAD pathway / synaptonemal complex assembly ...BAT3 complex / immune response-activating cell surface receptor signaling pathway / GET complex / NK T cell activation / ubiquitin-like protein transferase activity / protein carrier activity / maintenance of unfolded protein / tail-anchored membrane protein insertion into ER membrane / positive regulation of ERAD pathway / synaptonemal complex assembly / protein insertion into ER membrane / post-translational protein targeting to endoplasmic reticulum membrane / internal peptidyl-lysine acetylation / misfolded protein binding / endoplasmic reticulum stress-induced pre-emptive quality control / natural killer cell activation / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / ubiquitin-specific protease binding / proteasome binding / regulation of embryonic development / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / polyubiquitin modification-dependent protein binding / negative regulation of proteolysis / ERAD pathway / proteasomal protein catabolic process / synapse assembly / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / lung development / Hsp70 protein binding / molecular function activator activity / protein modification process / kidney development / regulation of protein stability / brain development / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / chromosome / protein-folding chaperone binding / chromatin organization / ribosome binding / spermatogenesis / molecular adaptor activity / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / cell differentiation / protein stabilization / receptor ligand activity / signaling receptor binding / apoptotic process / ubiquitin protein ligase binding / negative regulation of apoptotic process / nucleolus / ATP hydrolysis activity / extracellular exosome / nucleoplasm / ATP binding / membrane / metal ion binding / identical protein binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能
Ubl4, C-terminal TUGS domain / UBL4A-like, ubiquitin-like domain / Tethering Ubl4a to BAGS domain / Large proline-rich protein BAG6 / : / BCL2-associated athanogene 6 / Bag6, BAG-similar domain / Golgi to ER traffic protein 4 / Golgi to ER traffic protein 4 / : ...Ubl4, C-terminal TUGS domain / UBL4A-like, ubiquitin-like domain / Tethering Ubl4a to BAGS domain / Large proline-rich protein BAG6 / : / BCL2-associated athanogene 6 / Bag6, BAG-similar domain / Golgi to ER traffic protein 4 / Golgi to ER traffic protein 4 / : / Arsenical pump ATPase, ArsA/GET3, eukaryotic / Arsenical pump ATPase, ArsA/GET3 / Anion-transporting ATPase-like domain / Anion-transporting ATPase / Tetratricopeptide repeat domain / Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat / Ubiquitin domain signature. / Ubiquitin conserved site / Ubiquitin domain / Alpha Horseshoe / Ubiquitin family / Tetratricopeptide-like helical domain superfamily / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ubiquitin-like domain superfamily / P-loop containing nucleoside triphosphate hydrolase / Mainly Alpha 類似検索 - ドメイン・相同性
ADENOSINE-5'-TRIPHOSPHATE / Ubiquitin-like protein 4A / Large proline-rich protein BAG6 / ATPase GET3 / Golgi to ER traffic protein 4 homolog 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
DP2GM137415
American Heart Association
287375208
引用
ジャーナル: Nat Struct Mol Biol / 年: 2021 タイトル: Structural insights into metazoan pretargeting GET complexes. 著者: Alexander F A Keszei / Matthew C J Yip / Ta-Chien Hsieh / Sichen Shao / 要旨: Close coordination between chaperones is essential for protein biosynthesis, including the delivery of tail-anchored (TA) proteins containing a single C-terminal transmembrane domain to the ...Close coordination between chaperones is essential for protein biosynthesis, including the delivery of tail-anchored (TA) proteins containing a single C-terminal transmembrane domain to the endoplasmic reticulum (ER) by the conserved GET pathway. For successful targeting, nascent TA proteins must be promptly chaperoned and loaded onto the cytosolic ATPase Get3 through a transfer reaction involving the chaperone SGTA and bridging factors Get4, Ubl4a and Bag6. Here, we report cryo-electron microscopy structures of metazoan pretargeting GET complexes at 3.3-3.6 Å. The structures reveal that Get3 helix 8 and the Get4 C terminus form a composite lid over the Get3 substrate-binding chamber that is opened by SGTA. Another interaction with Get4 prevents formation of Get3 helix 4, which links the substrate chamber and ATPase domain. Both interactions facilitate TA protein transfer from SGTA to Get3. Our findings show how the pretargeting complex primes Get3 for coordinated client loading and ER targeting.
A: ATPase GET3 B: ATPase GET3 C: Golgi to ER traffic protein 4 homolog D: Large proline-rich protein BAG6 E: Ubiquitin-like protein 4A F: Golgi to ER traffic protein 4 homolog G: Large proline-rich protein BAG6 H: Ubiquitin-like protein 4A ヘテロ分子