4yxa

Complex of SpaO(SPOA1,2 SeMet) and OrgB(APAR)::T4lysozyme fusion protein

spinqualitylabelsall models 4yxa, resolution 2.35Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4yxa is a 6 chain structure with sequence from Escherichia virus T4 and Salmonella enterica subsp. enterica serovar Typhimurium str. LT2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.35Å Ligands: MSE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function SPAO_SALTY Involved in a secretory pathway responsible for the surface presentation of determinants needed for the entry of Salmonella species into mammalian cells. Publication Abstract from PubMed Translocating proteins across the double membrane of Gram-negative bacteria, type III secretion systems (T3SS) occur in two evolutionarily related forms: injectisomes, delivering virulence factors into host cells, and the flagellar system, secreting the polymeric filament used for motility. While both systems share related elements of a cytoplasmic sorting platform that facilitates the hierarchical secretion of protein substrates, its assembly and regulation remain unclear. Here we describe a module mediating the assembly of the sorting platform in both secretion systems, and elucidate the structural basis for segregation of homologous components among these divergent T3SS subtypes sharing a common cytoplasmic milieu. These results provide a foundation for the subtype-specific assembly of T3SS sorting platforms and will support further mechanistic analysis and anti-virulence drug design. A common assembly module in injectisome and flagellar type III secretion sorting platforms.,Notti RQ, Bhattacharya S, Lilic M, Stebbins CE Nat Commun. 2015 May 21;6:7125. doi: 10.1038/ncomms8125. PMID:25994170 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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