3NFY

The Structure of Human Bisphosphoglycerate Mutase to 1.94A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Unliganded structure of human bisphosphoglycerate mutase reveals side-chain movements induced by ligand binding.

Patterson, A.Price, N.C.Nairn, J.

(2010) Acta Crystallogr.,Sect.F 66: 1415-1420

  • DOI: 10.1107/S1744309110035475

  • PubMed Abstract: 
  • Erythrocyte-specific bisphosphoglycerate mutase is a trifunctional enzyme which modulates the levels of 2,3-bisphosphoglycerate (2,3-BPG) in red blood cells by virtue of its synthase and phosphatase activities. Low levels of erythrocyte 2,3-BPG incre ...

    Erythrocyte-specific bisphosphoglycerate mutase is a trifunctional enzyme which modulates the levels of 2,3-bisphosphoglycerate (2,3-BPG) in red blood cells by virtue of its synthase and phosphatase activities. Low levels of erythrocyte 2,3-BPG increase the affinity of haemoglobin for oxygen, thus limiting the release of oxygen into tissues. 2,3-BPG levels in stored blood decline rapidly owing to the phosphatase activity of bisphosphoglycerate mutase, which is enhanced by a fall in pH. Here, the 1.94 Å resolution X-ray structure of bisphosphoglycerate mutase is presented, focusing on the dynamic nature of key ligand-binding residues and their interaction with the inhibitor citrate. Residues at the binding pocket are complete. In addition, the movement of key residues in the presence and absence of ligand is described and alternative conformations are explored. The conformation in which the ligand citrate would bind at the substrate-binding pocket is proposed, with discussion and representations of its orientation. The characterization of bisphosphoglycerate mutase-citrate interactions will provide a framework for the design of specific inhibitors of the phosphatase activity of this enzyme, which may limit the decline of 2,3-BPG in stored blood.


    Organizational Affiliation

    Division of Molecular and Cellular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bisphosphoglycerate mutase
A, B
267Homo sapiensMutation(s): 0 
Gene Names: BPGM
EC: 5.4.2.4
Find proteins for P07738 (Homo sapiens)
Go to Gene View: BPGM
Go to UniProtKB:  P07738
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.178 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 38.472α = 90.00
b = 61.345β = 95.87
c = 122.696γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PDB_EXTRACTdata extraction
ADSCdata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-11-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance