1HSK image
Deposition Date 2000-12-27
Release Date 2001-03-14
Last Version Date 2024-02-07
Entry Detail
PDB ID:
1HSK
Keywords:
OXIDOREDUCTASE
Title:
CRYSTAL STRUCTURE OF S. AUREUS MURB
Biological Source:
Source Organism:
Staphylococcus aureus (Taxon ID: 1280)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.30 Å
R-Value Free:
0.22
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
I 21 3
1HSK validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:UDP-N-ACETYLENOLPYRUVOYLGLUCOSAMINE REDUCTASE
Gene (Uniprot):murB
Chain IDs:A
Chain Length:326
Number of Molecules:1
Biological Source:Staphylococcus aureus
UniProt ID:P61431 Pfam ID:PF01565, PF02873 EC:1.3.1.98
Ligand Molecules
FAD
Primary Citation
A structural variation for MurB: X-ray crystal structure of Staphylococcus aureus UDP-N-acetylenolpyruvylglucosamine reductase (MurB).
Biochemistry 40 2340 2350 (2001)
PMID: 11327854 DOI: 10.1021/bi002162d

Abstact

The X-ray crystal structure of the substrate free form of Staphylococcus aureus UDP-N-acetylenolpyruvylglucosamine reductase (MurB) has been solved to 2.3 A resolution with an R-factor of 20.3% and a free R-factor of 22.3%. While the overall fold of the S. aureus enzyme is similar to that of the homologous Escherichia coli MurB X-ray crystal structure, notable distinctions between the S. aureus and E. coli MurB protein structures occur in residues involved in substrate binding. Analysis of available MurB sequences from other bacteria suggest that the S. aureus MurB structure is representative of a distinct structural class of UDP-N-acetylenolpyruvylglucosamine reductases including Bacillus subtilis and Helicobacter pylori that are characterized by a modified mechanism for substrate binding.

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Primary Citation of related structures
1HSK