1uyn

TRANSLOCATOR DOMAIN OF AUTOTRANSPORTER NALP FROM NEISSERIA MENINGITIDISTRANSLOCATOR DOMAIN OF AUTOTRANSPORTER NALP FROM NEISSERIA MENINGITIDIS

Structural highlights 1uyn is a 1 chain structure with sequence from "diplokokkus_intracellularis_meningitidis"_(sic)_weichselbaum_1887 "diplokokkus intracellularis meningitidis" (sic) weichselbaum 1887. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: , Related: 1uyo Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Autotransporters are virulence-related proteins of Gram-negative bacteria that are secreted via an outer-membrane-based C-terminal extension, the translocator domain. This domain supposedly is sufficient for the transport of the N-terminal passenger domain across the outer membrane. We present here the crystal structure of the in vitro-folded translocator domain of the autotransporter NalP from Neisseria meningitidis, which reveals a 12-stranded beta-barrel with a hydrophilic pore of 10 x 12.5 A that is filled by an N-terminal alpha-helix. The domain has pore activity in vivo and in vitro. Our data are consistent with the model of passenger-domain transport through the hydrophilic channel within the beta-barrel, and inconsistent with a model for transport through a central channel formed by an oligomer of translocator domains. However, the dimensions of the pore imply translocation of the secreted domain in an unfolded form. An alternative model, possibly covering the transport of folded domains, is that passenger-domain transport involves the Omp85 complex, the machinery required for membrane insertion of outer-membrane proteins, on which autotransporters are dependent. Structure of the translocator domain of a bacterial autotransporter.,Oomen CJ, van Ulsen P, van Gelder P, Feijen M, Tommassen J, Gros P EMBO J. 2004 Mar 24;23(6):1257-66. Epub 2004 Mar 11. PMID:15014442 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Translocator Domain of the Autotransporter NalP within Neisseria meningitidis

spinqualitylabelsall models 1uyn, resolution 2.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image