5CAG

Crystal structure of a putative adhesin (BACOVA_02677) from Bacteroides ovatus ATCC 8483 at 3.00 A resolution (PSI Community Target, Nakayama)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A Distinct Type of Pilus from the Human Microbiome.

Xu, Q.Shoji, M.Shibata, S.Naito, M.Sato, K.Elsliger, M.A.Grant, J.C.Axelrod, H.L.Chiu, H.J.Farr, C.L.Jaroszewski, L.Knuth, M.W.Deacon, A.M.Godzik, A.Lesley, S.A.Curtis, M.A.Nakayama, K.Wilson, I.A.

(2016) Cell 165: 690-703

  • DOI: 10.1016/j.cell.2016.03.016
  • Primary Citation of Related Structures:  
    3T2L, 3SY6, 3UFI, 3UP6, 4H40, 4GPV, 4Q98, 4QB7, 4QDG, 4JG5

  • PubMed Abstract: 
  • Pili are proteinaceous polymers of linked pilins that protrude from the cell surface of many bacteria and often mediate adherence and virulence. We investigated a set of 20 Bacteroidia pilins from the human microbiome whose structures and mechanism o ...

    Pili are proteinaceous polymers of linked pilins that protrude from the cell surface of many bacteria and often mediate adherence and virulence. We investigated a set of 20 Bacteroidia pilins from the human microbiome whose structures and mechanism of assembly were unknown. Crystal structures and biochemical data revealed a diverse protein superfamily with a common Greek-key β sandwich fold with two transthyretin-like repeats that polymerize into a pilus through a strand-exchange mechanism. The assembly mechanism of the central, structural pilins involves proteinase-assisted removal of their N-terminal β strand, creating an extended hydrophobic groove that binds the C-terminal donor strands of the incoming pilin. Accessory pilins at the tip and base have unique structural features specific to their location, allowing initiation or termination of the assembly. The Bacteroidia pilus, therefore, has a biogenesis mechanism that is distinct from other known pili and likely represents a different type of bacterial pilus.


    Organizational Affiliation

    Joint Center for Structural Genomics, http://www.jcsg.org; Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Electronic address: wilson@scripps.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Uncharacterized proteinA318Bacteroides ovatus ATCC 8483Mutation(s): 0 
Gene Names: BACOVA_02677
Find proteins for A7LXW1 (Bacteroides ovatus (strain ATCC 8483 / DSM 1896 / JCM 5824 / NCTC 11153))
Explore A7LXW1 
Go to UniProtKB:  A7LXW1
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 98.391α = 90
b = 98.391β = 90
c = 217.037γ = 120
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SHELXphasing
SHARPphasing
XDSdata reduction
XSCALEdata scaling
SHELXDphasing
BUSTERrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-10-14
    Type: Initial release
  • Version 1.1: 2018-01-24
    Changes: Database references, Derived calculations
  • Version 1.2: 2020-04-22
    Changes: Database references