- PDB-3j1w: A refined model of the prototypical Salmonella typhimurium T3SS b... -
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基本情報
登録情報
データベース: PDB / ID: 3j1w
タイトル
A refined model of the prototypical Salmonella typhimurium T3SS basal body reveals the molecular basis for its assembly
要素
Protein PrgH
キーワード
CELL INVASION / T3SS
機能・相同性
Type III secretion system, PrgH/EprH / Type III secretion system, PrgH/EprH-like / Type III secretion system protein PrgH-EprH (PrgH) / plasma membrane / Protein PrgH
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.
THIS ENTRY 3J1W CONTAINS A STRUCTURAL MODEL FIT TO AN ELECTRON MICROSCOPY MAP (EMD-1875) DETERMINED ...THIS ENTRY 3J1W CONTAINS A STRUCTURAL MODEL FIT TO AN ELECTRON MICROSCOPY MAP (EMD-1875) DETERMINED ORIGINALLY BY AUTHORS: O.SCHRAIDT, T.C.MARLOVITS
A: Protein PrgH B: Protein PrgH C: Protein PrgH D: Protein PrgH E: Protein PrgH F: Protein PrgH G: Protein PrgH H: Protein PrgH I: Protein PrgH J: Protein PrgH K: Protein PrgH L: Protein PrgH M: Protein PrgH N: Protein PrgH O: Protein PrgH P: Protein PrgH Q: Protein PrgH R: Protein PrgH S: Protein PrgH T: Protein PrgH U: Protein PrgH V: Protein PrgH W: Protein PrgH X: Protein PrgH