4OGM

MBP-fusion protein of PilA1 residues 26-159


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.234 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural and Evolutionary Analyses Show Unique Stabilization Strategies in the Type IV Pili of Clostridium difficile.

Piepenbrink, K.H.Maldarelli, G.A.Martinez de la Pena, C.F.Dingle, T.C.Mulvey, G.L.Lee, A.von Rosenvinge, E.Armstrong, G.D.Donnenberg, M.S.Sundberg, E.J.

(2015) Structure 23: 385-396

  • DOI: 10.1016/j.str.2014.11.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Type IV pili are produced by many pathogenic Gram-negative bacteria and are important for processes as diverse as twitching motility, biofilm formation, cellular adhesion, and horizontal gene transfer. However, many Gram-positive species, including C ...

    Type IV pili are produced by many pathogenic Gram-negative bacteria and are important for processes as diverse as twitching motility, biofilm formation, cellular adhesion, and horizontal gene transfer. However, many Gram-positive species, including Clostridium difficile, also produce type IV pili. Here, we identify the major subunit of the type IV pili of C. difficile, PilA1, and describe multiple 3D structures of PilA1, demonstrating the diversity found in three strains of C. difficile. We also model the incorporation of both PilA1 and a minor pilin, PilJ, into the pilus fiber. Although PilA1 contains no cysteine residues, and therefore cannot form the disulfide bonds found in all Gram-negative type IV pilins, it adopts unique strategies to achieve a typical pilin fold. The structures of PilA1 and PilJ exhibit similarities with the type IVb pilins from Gram-negative bacteria that suggest that the type IV pili of C. difficile are involved in microcolony formation.


    Organizational Affiliation

    Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Maltose ABC transporter periplasmic protein, pilin protein chimera
A
520Escherichia coli (strain K12)Mutation(s): 5 
Gene Names: malE
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEX9
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAL
Query on MAL

Download SDF File 
Download CCD File 
A
MALTOSE
C12 H22 O11
GUBGYTABKSRVRQ-ASMJPISFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.234 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.186 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 66.224α = 90.00
b = 74.710β = 90.00
c = 97.517γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
Aimlessdata scaling
XDSdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-02-04
    Type: Database references
  • Version 1.2: 2015-02-18
    Type: Database references
  • Version 1.3: 2017-06-28
    Type: Database references, Source and taxonomy