- EMDB-3113: Negative stain EM structure of the Tse6-Tsi6-VgrG1-EagT6-EF-Tu complex -
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基本情報
登録情報
データベース: EMDB / ID: EMD-3113
タイトル
Negative stain EM structure of the Tse6-Tsi6-VgrG1-EagT6-EF-Tu complex
マップデータ
Reconstruction of Tse6-Tsi6-VgrG1-EagT6-EF-Tu complex
試料
試料: Tse6-Tsi6-VgrG1-EagT6-EF-Tu complex
タンパク質・ペプチド: Valine-glycine repeat protein 1
タンパク質・ペプチド: Type VI secretion exported 6
タンパク質・ペプチド: Type VI secretion immunity 6
タンパク質・ペプチド: Effector associated gene with tse6
タンパク質・ペプチド: Elongation factor Tu 1
キーワード
Type VI secretion system / bacterial competition / polymicrobial / effector / glycohydrolase
機能・相同性
機能・相同性情報
type VI protein secretion system complex / protein secretion by the type VI secretion system / NAD+ glycohydrolase / toxin sequestering activity / NADP+ nucleosidase activity / NAD+ nucleosidase activity / guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / translational elongation ...type VI protein secretion system complex / protein secretion by the type VI secretion system / NAD+ glycohydrolase / toxin sequestering activity / NADP+ nucleosidase activity / NAD+ nucleosidase activity / guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / translational elongation / translation elongation factor activity / response to antibiotic / GTPase activity / GTP binding / magnesium ion binding / RNA binding / extracellular region / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能
Tsi6 / Tsi6 / Inner membrane lipoprotein DcrB/EagT6 / Bacterial toxin 46 / DcrB / Bacterial toxin 46 / Bacteriophage T4 gp5 C-terminal trimerisation domain / Mog1/PsbP, alpha/beta/alpha sandwich / Type VI secretion system, RhsGE-associated Vgr family subset / PAAR motif ...Tsi6 / Tsi6 / Inner membrane lipoprotein DcrB/EagT6 / Bacterial toxin 46 / DcrB / Bacterial toxin 46 / Bacteriophage T4 gp5 C-terminal trimerisation domain / Mog1/PsbP, alpha/beta/alpha sandwich / Type VI secretion system, RhsGE-associated Vgr family subset / PAAR motif / PAAR motif / Type VI secretion system, RhsGE-associated Vgr protein / Phage tail baseplate hub (GPD) / Gp5/Type VI secretion system Vgr protein, OB-fold domain / Type VI secretion system/phage-baseplate injector OB domain / Vgr protein, OB-fold domain superfamily / : / Translation elongation factor EFTu/EF1A, C-terminal / Translation elongation factor EFTu/EF1A, bacterial/organelle / Elongation factor Tu, domain 2 / Elongation factor Tu (EF-Tu), GTP-binding domain / : / Elongation factor Tu C-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / Translation elongation factor EFTu-like, domain 2 / Elongation factor Tu domain 2 / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Small GTP-binding protein domain / Translation protein, beta-barrel domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Elongation factor Tu 1 / Effector EagT6 / NAD(P)(+) glycohydrolase toxin Tse6 / Immune protein Tsi6 / Type VI secretion system spike protein VgrG1a 類似検索 - 構成要素
ジャーナル: Cell / 年: 2015 タイトル: An interbacterial NAD(P)(+) glycohydrolase toxin requires elongation factor Tu for delivery to target cells. 著者: John C Whitney / Dennis Quentin / Shin Sawai / Michele LeRoux / Brittany N Harding / Hannah E Ledvina / Bao Q Tran / Howard Robinson / Young Ah Goo / David R Goodlett / Stefan Raunser / Joseph D Mougous / 要旨: Type VI secretion (T6S) influences the composition of microbial communities by catalyzing the delivery of toxins between adjacent bacterial cells. Here, we demonstrate that a T6S integral membrane ...Type VI secretion (T6S) influences the composition of microbial communities by catalyzing the delivery of toxins between adjacent bacterial cells. Here, we demonstrate that a T6S integral membrane toxin from Pseudomonas aeruginosa, Tse6, acts on target cells by degrading the universally essential dinucleotides NAD(+) and NADP(+). Structural analyses of Tse6 show that it resembles mono-ADP-ribosyltransferase proteins, such as diphtheria toxin, with the exception of a unique loop that both excludes proteinaceous ADP-ribose acceptors and contributes to hydrolysis. We find that entry of Tse6 into target cells requires its binding to an essential housekeeping protein, translation elongation factor Tu (EF-Tu). These proteins participate in a larger assembly that additionally directs toxin export and provides chaperone activity. Visualization of this complex by electron microscopy defines the architecture of a toxin-loaded T6S apparatus and provides mechanistic insight into intercellular membrane protein delivery between bacteria.
名称: Tse6-Tsi6-VgrG1-EagT6-EF-Tu complex / タイプ: sample / ID: 1000 集合状態: Trimer of VgrG1 binds to monomers of Tse6, Tsi6, EF-Tu and a dimer of EagT6 Number unique components: 5