2hi2

Crystal structure of native Neisseria gonorrhoeae Type IV pilin at 2.3 Angstroms Resolution

spinqualitylabelsall models 2hi2, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2hi2 is a 1 chain structure with sequence from Neisseria gonorrhoeae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: HTO, OPE, DT6, GLA NonStd Res: MEA Related: 2hil Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [FMM1_NEIGO] This protein is the predominant Neisseria surface antigen, which allows adhesion of the bacterium to various host cells. 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 Type IV pili (T4P) are long, thin, flexible filaments on bacteria that undergo assembly-disassembly from inner membrane pilin subunits and exhibit astonishing multifunctionality. Neisseria gonorrhoeae (gonococcal or GC) T4P are prototypic virulence factors and immune targets for increasingly antibiotic-resistant human pathogens, yet detailed structures are unavailable for any T4P. Here, we determined a detailed experimental GC-T4P structure by quantitative fitting of a 2.3 A full-length pilin crystal structure into a 12.5 A resolution native GC-T4P reconstruction solved by cryo-electron microscopy (cryo-EM) and iterative helical real space reconstruction. Spiraling three-helix bundles form the filament core, anchor the globular heads, and provide strength and flexibility. Protruding hypervariable loops and posttranslational modifications in the globular head shield conserved functional residues in pronounced grooves, creating a surprisingly corrugated pilus surface. These results clarify T4P multifunctionality and assembly-disassembly while suggesting unified assembly mechanisms for T4P, archaeal flagella, and type II secretion system filaments. Type IV pilus structure by cryo-electron microscopy and crystallography: implications for pilus assembly and functions.,Craig L, Volkmann N, Arvai AS, Pique ME, Yeager M, Egelman EH, Tainer JA Mol Cell. 2006 Sep 1;23(5):651-62. PMID:16949362 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Pilin

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