1M5Y

Crystallographic Structure of SurA, a Molecular Chaperone that Facilitates Outer Membrane Porin Folding


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystallographic Structure of SurA, a Molecular Chaperone that Facilitates Folding of Outer Membrane Porins

Bitto, E.McKay, D.B.

(2002) Structure 10: 1489-1498

  • DOI: 10.1016/s0969-2126(02)00877-8
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The SurA protein facilitates correct folding of outer membrane proteins in gram-negative bacteria. The sequence of Escherichia coli SurA presents four segments, two of which are peptidyl-prolyl isomerases (PPIases); the crystal structure reveals an a ...

    The SurA protein facilitates correct folding of outer membrane proteins in gram-negative bacteria. The sequence of Escherichia coli SurA presents four segments, two of which are peptidyl-prolyl isomerases (PPIases); the crystal structure reveals an asymmetric dumbbell, in which the amino-terminal, carboxy-terminal, and first PPIase segments of the sequence form a core structural module, and the second PPIase segment is a satellite domain tethered approximately 30 A from this module. The core module, which is implicated in membrane protein folding, has a novel fold that includes an extended crevice. Crystal contacts show that peptides bind within the crevice, suggesting a model for chaperone activity whereby segments of polypeptide may be repetitively sequestered and released during the membrane protein-folding process.


    Organizational Affiliation

    Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Survival protein surA
A, B, C, D
408Escherichia coliMutation(s): 0 
Gene Names: surA
EC: 5.2.1.8
Find proteins for P0ABZ6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ABZ6
Protein Feature View
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 
  • Space Group: F 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 158.817α = 90
b = 223.406β = 90
c = 279.721γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2002-07-10 
  • Released Date: 2002-11-08 
  • Deposition Author(s): Bitto, E., McKay, D.B.

Revision History 

  • Version 1.0: 2002-11-08
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2020-01-22
    Changes: Data collection, Derived calculations