- EMDB-1875: Three dimensional structure of the injectisome -
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基本情報
登録情報
データベース: EMDB / ID: EMD-1875
タイトル
Three dimensional structure of the injectisome
マップデータ
This is an image of a surface rendered needle complex (C3) from Salmonella typhimurium
試料
試料: Needle complex isolated from the membrane of Salmonella typhimurium
タンパク質・ペプチド: Needle complex
キーワード
type III secretion system / protein translocation / Gram negative / Salmonella tyhpimurium
機能・相同性
機能・相同性情報
type III protein secretion system complex / type II protein secretion system complex / protein secretion by the type III secretion system / protein secretion / cell outer membrane / identical protein binding / plasma membrane 類似検索 - 分子機能
Type III secretion system, PrgH/EprH / Type III secretion system lipoprotein HrcJ/YscJ / Type III secretion system, PrgH/EprH-like / Type III secretion system protein PrgH-EprH (PrgH) / : / SPI-1 type 3 secretion system secretin, N0 domain / Type III secretion system outer membrane pore YscC/HrcC / Bacterial type II secretion system protein D signature. / Type II secretion system protein GspD, conserved site / : ...Type III secretion system, PrgH/EprH / Type III secretion system lipoprotein HrcJ/YscJ / Type III secretion system, PrgH/EprH-like / Type III secretion system protein PrgH-EprH (PrgH) / : / SPI-1 type 3 secretion system secretin, N0 domain / Type III secretion system outer membrane pore YscC/HrcC / Bacterial type II secretion system protein D signature. / Type II secretion system protein GspD, conserved site / : / NolW-like / NolW-like superfamily / Bacterial type II/III secretion system short domain / Type II/III secretion system / Bacterial type II and III secretion system protein / Lipoprotein YscJ/Flagellar M-ring protein / Secretory protein of YscJ/FliF family / Flagellar M-ring , N-terminal / AMP-binding enzyme, C-terminal domain superfamily / Prokaryotic membrane lipoprotein lipid attachment site profile. 類似検索 - ドメイン・相同性
: / SPI-1 type 3 secretion system secretin / Protein PrgH / Lipoprotein PrgK 類似検索 - 構成要素
ジャーナル: Science / 年: 2011 タイトル: Three-dimensional model of Salmonella's needle complex at subnanometer resolution. 著者: Oliver Schraidt / Thomas C Marlovits / 要旨: Type III secretion systems (T3SSs) are essential virulence factors used by many Gram-negative bacteria to inject proteins that make eukaryotic host cells accessible to invasion. The T3SS core ...Type III secretion systems (T3SSs) are essential virulence factors used by many Gram-negative bacteria to inject proteins that make eukaryotic host cells accessible to invasion. The T3SS core structure, the needle complex (NC), is a ~3.5 megadalton-sized, oligomeric, membrane-embedded complex. Analyzing cryo-electron microscopy images of top views of NCs or NC substructures from Salmonella typhimurium revealed a 24-fold symmetry for the inner rings and a 15-fold symmetry for the outer rings, giving an overall C3 symmetry. Local refinement and averaging showed the organization of the central core and allowed us to reconstruct a subnanometer composite structure of the NC, which together with confident docking of atomic structures reveal insights into its overall organization and structural requirements during assembly.