2NUL

PEPTIDYLPROLYL ISOMERASE FROM E. COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Work: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of cytoplasmic Escherichia coli peptidyl-prolyl isomerase: evidence for decreased mobility of loops upon complexation.

Edwards, K.J.Ollis, D.L.Dixon, N.E.

(1997) J.Mol.Biol. 271: 258-265

  • DOI: 10.1006/jmbi.1997.1151

  • PubMed Abstract: 
  • The structure of the unliganded form of the Escherichia coli cytoplasmic peptidyl-prolyl isomerase (ppiB gene product) in a new crystal form was determined by the molecular replacement method and refined to an R-factor of 16.1% at 2.1 A resolution. T ...

    The structure of the unliganded form of the Escherichia coli cytoplasmic peptidyl-prolyl isomerase (ppiB gene product) in a new crystal form was determined by the molecular replacement method and refined to an R-factor of 16.1% at 2.1 A resolution. The enzyme crystallized in the orthorhombic C2221 space group with unit cell dimensions of a=44.7 A, b=68.2 A and c=102.0 A. Comparison with the reported structure of the enzyme complexed with the tripeptide substrate succinyl-Ala-Pro-Ala-p-nitroanilide revealed subtle changes that occur upon complex formation. There is evidence to suggest that two surface loops have significantly reduced mobility in the complexed structure.


    Organizational Affiliation

    Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PEPTIDYLPROLYL ISOMERASE
A
164Escherichia coli (strain K12)Gene Names: ppiB
EC: 5.2.1.8
Find proteins for P23869 (Escherichia coli (strain K12))
Go to UniProtKB:  P23869
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Work: 0.160 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 44.700α = 90.00
b = 68.200β = 90.00
c = 102.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
RIGAKUdata scaling
X-PLORmodel building
RIGAKUdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-11-19
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model