1EQJ

CRYSTAL STRUCTURE OF PHOSPHOGLYCERATE MUTASE FROM BACILLUS STEAROTHERMOPHILUS COMPLEXED WITH 2-PHOSPHOGLYCERATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Mechanism of catalysis of the cofactor-independent phosphoglycerate mutase from Bacillus stearothermophilus. Crystal structure of the complex with 2-phosphoglycerate.

Jedrzejas, M.J.Chander, M.Setlow, P.Krishnasamy, G.

(2000) J.Biol.Chem. 275: 23146-23153

  • DOI: 10.1074/jbc.M002544200

  • PubMed Abstract: 
  • The structure of the complex between the 2, 3-diphosphoglycerate-independent phosphoglycerate mutase (iPGM) from Bacillus stearothermophilus and its 3-phosphoglycerate substrate has recently been solved, and analysis of this structure allowed formula ...

    The structure of the complex between the 2, 3-diphosphoglycerate-independent phosphoglycerate mutase (iPGM) from Bacillus stearothermophilus and its 3-phosphoglycerate substrate has recently been solved, and analysis of this structure allowed formulation of a mechanism for iPGM catalysis. In order to obtain further evidence for this mechanism, we have solved the structure of this iPGM complexed with 2-phosphoglycerate and two Mn(2+) ions at 1. 7-A resolution. The structure consists of two different domains connected by two loops and interacting through a network of hydrogen bonds. This structure is consistent with the proposed mechanism for iPGM catalysis, with the two main steps in catalysis being a phosphatase reaction removing the phosphate from 2- or 3-phosphoglycerate, generating an enzyme-bound phosphoserine intermediate, followed by a phosphotransferase reaction as the phosphate is transferred from the enzyme back to the glycerate moiety. The structure also allowed the assignment of the function of the two domains of the enzyme, one of which participates in the phosphatase reaction and formation of the phosphoserine enzyme intermediate, with the other involved in the phosphotransferase reaction regenerating phosphoglycerate. Significant structural similarity has also been found between the active site of the iPGM domain catalyzing the phosphatase reaction and Escherichia coli alkaline phosphatase.


    Organizational Affiliation

    Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA. jedrzejas@uab.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOSPHOGLYCERATE MUTASE
A
511Geobacillus stearothermophilusGene Names: gpmI (pgm)
EC: 5.4.2.12
Find proteins for Q9X519 (Geobacillus stearothermophilus)
Go to UniProtKB:  Q9X519
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
2PG
Query on 2PG

Download SDF File 
Download CCD File 
A
2-PHOSPHOGLYCERIC ACID
C3 H7 O7 P
GXIURPTVHJPJLF-UWTATZPHSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.218 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 58.407α = 90.00
b = 205.688β = 90.00
c = 123.706γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
SCALEPACKdata scaling
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-04-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance