1HSK

CRYSTAL STRUCTURE OF S. AUREUS MURB

• PDB DOI: https://doi.org/10.2210/pdb1HSK/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Staphylococcus aureus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-12-27 Released: 2001-03-14 
• Deposition Author(s): Benson, T.E., Harris, M.S., Choi, G.H., Cialdella, J.I., Herberg, J.T., Martin Jr., J.P., Baldwin, E.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.223 (Depositor) 
• R-Value Work: 
  0.201 (Depositor) 
• R-Value Observed: 
  0.201 (Depositor) 

Literature

A structural variation for MurB: X-ray crystal structure of Staphylococcus aureus UDP-N-acetylenolpyruvylglucosamine reductase (MurB).

Benson, T.E., Harris, M.S., Choi, G.H., Cialdella, J.I., Herberg, J.T., Martin Jr., J.P., Baldwin, E.T.

(2001) Biochemistry 40: 2340-2350

• PubMed: 11327854 
• DOI: https://doi.org/10.1021/bi002162d
• Primary Citation of Related Structures:  
  1HSK


• PubMed Abstract: 
  

  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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Organizational Affiliation: 

Structural, Analytical, and Medicinal Chemistry, Biology, and Protein Science, Pharmacia Corporation, 301 Henrietta Street, Kalamazoo, Michigan 49007, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 36.8 kDa 
• Atom Count: 2,611 
• Modelled Residue Count: 303 
• Deposited Residue Count: 326 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UDP-N-ACETYLENOLPYRUVOYLGLUCOSAMINE REDUCTASE	A	326	Staphylococcus aureus	Mutation(s): 0  EC: 1.1.1.158 (PDB Primary Data), 1.3.1.98 (UniProt)
UniProt
Find proteins for P61431 (Staphylococcus aureus) Explore P61431  Go to UniProtKB:  P61431

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	B [auth A]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.223 (Depositor) 
• R-Value Work:  0.201 (Depositor) 
• R-Value Observed: 0.201 (Depositor) 

Space Group: I 2₁ 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 178.99	α = 90
b = 178.99	β = 90
c = 178.99	γ = 90

Software Package:

Software Name	Purpose
MLPHARE	phasing
X-PLOR	refinement
SAINT	data reduction
SAINT	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-03-14 
Deposition Author(s): Benson, T.E., Harris, M.S., Choi, G.H., Cialdella, J.I., Herberg, J.T., Martin Jr., J.P., Baldwin, E.T.

Revision History  

• Version 1.0: 2001-03-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations