4QB7

Crystal structure of a fimbrial protein (BVU_2522) from Bacteroides vulgatus ATCC 8482 at 2.55 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.3 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 proteinA359Bacteroides vulgatus ATCC 8482Mutation(s): 0 
Gene Names: BVU_2522fim1C
Find proteins for A6L3B5 (Bacteroides vulgatus (strain ATCC 8482 / DSM 1447 / JCM 5826 / NBRC 14291 / NCTC 11154))
Explore A6L3B5 
Go to UniProtKB:  A6L3B5
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 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 = 54.22α = 90
b = 186.12β = 90
c = 211.83γ = 90
Software Package:
Software NamePurpose
MolProbitymodel building
PDB_EXTRACTdata extraction
SHELXphasing
SHARPphasing
XSCALEdata scaling
BUSTER-TNTrefinement
XDSdata reduction
SHELXDphasing
BUSTERrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-02
    Type: Initial release
  • Version 1.1: 2014-12-24
    Changes: Structure summary
  • Version 1.2: 2017-11-22
    Changes: Refinement description
  • Version 1.3: 2020-04-22
    Changes: Database references, Derived calculations