- PDB-4g08: Crystal structure of the periplasmic domain of InvG -
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基本情報
登録情報
データベース: PDB / ID: 4g08
タイトル
Crystal structure of the periplasmic domain of InvG
要素
Protein InvG
キーワード
CELL INVASION / Ring-building motif / protein secretion / PrgH
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 類似検索 - 分子機能
Ribosomal Protein S8; Chain: A, domain 1 - #120 / Phage tail protein beta-alpha-beta fold - #30 / Phage tail protein beta-alpha-beta fold / : / 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 ...Ribosomal Protein S8; Chain: A, domain 1 - #120 / Phage tail protein beta-alpha-beta fold - #30 / Phage tail protein beta-alpha-beta fold / : / 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 / 3-Layer(bab) Sandwich / Ribosomal Protein S8; Chain: A, domain 1 / 2-Layer Sandwich / Alpha Beta 類似検索 - ドメイン・相同性
SPI-1 type 3 secretion system secretin 類似検索 - 構成要素
ジャーナル: PLoS Pathog / 年: 2013 タイトル: A refined model of the prototypical Salmonella SPI-1 T3SS basal body reveals the molecular basis for its assembly. 著者: Julien R C Bergeron / Liam J Worrall / Nikolaos G Sgourakis / Frank DiMaio / Richard A Pfuetzner / Heather B Felise / Marija Vuckovic / Angel C Yu / Samuel I Miller / David Baker / Natalie C J Strynadka / 要旨: The T3SS injectisome is a syringe-shaped macromolecular assembly found in pathogenic Gram-negative bacteria that allows for the direct delivery of virulence effectors into host cells. It is composed ...The T3SS injectisome is a syringe-shaped macromolecular assembly found in pathogenic Gram-negative bacteria that allows for the direct delivery of virulence effectors into host cells. It is composed of a "basal body", a lock-nut structure spanning both bacterial membranes, and a "needle" that protrudes away from the bacterial surface. A hollow channel spans throughout the apparatus, permitting the translocation of effector proteins from the bacterial cytosol to the host plasma membrane. The basal body is composed largely of three membrane-embedded proteins that form oligomerized concentric rings. Here, we report the crystal structures of three domains of the prototypical Salmonella SPI-1 basal body, and use a new approach incorporating symmetric flexible backbone docking and EM data to produce a model for their oligomeric assembly. The obtained models, validated by biochemical and in vivo assays, reveal the molecular details of the interactions driving basal body assembly, and notably demonstrate a conserved oligomerization mechanism.