1GQY

MURC - CRYSTAL STRUCTURE OF THE ENZYME FROM HAEMOPHILUS INFLUENZAE COMPLEXED WITH AMPPCP

• PDB DOI: https://doi.org/10.2210/pdb1GQY/pdb

• Classification: CELL WALL BIOSYNTHESIS
• Organism(s): Haemophilus influenzae
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2001-12-06 Released: 2003-06-13 
• Deposition Author(s): Skarzynski, T., Cleasby, A., Domenici, E., Gevi, M., Shaw, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.233 (Depositor) 
• R-Value Work: 
  0.184 (Depositor) 
• R-Value Observed: 
  0.186 (Depositor) 

Starting Model: experimental

Literature

Crystal Structures of Udp-N-Acetylmuramate-L-Alanine Ligase (Murc) from Haemophilus Influenzae

Skarzynski, T., Cleasby, A., Domenici, E., Gevi, M., Shaw, J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 105.17 kDa 
• Atom Count: 8,186 
• Modelled Residue Count: 937 
• Deposited Residue Count: 950 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UDP-N-ACETYLMURAMATE-L-ALANINE LIGASE	A, B	475	Haemophilus influenzae	Mutation(s): 0  EC: 6.3.2.8
UniProt
Find proteins for P45066 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P45066  Go to UniProtKB:  P45066

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACP	C [auth A], E [auth B]	PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER C11 H18 N5 O12 P3 UFZTZBNSLXELAL-IOSLPCCCSA-N
MG	D [auth A], F [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.233 (Depositor) 
• R-Value Work:  0.184 (Depositor) 
• R-Value Observed: 0.186 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.6	α = 90
b = 93.2	β = 101.4
c = 86.8	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
ARP/wARP	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-06-13 
Deposition Author(s): Skarzynski, T., Cleasby, A., Domenici, E., Gevi, M., Shaw, J.

Revision History  

• Version 1.0: 2003-06-13
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-06-28
  Changes: Refinement description
• Version 1.4: 2018-02-28
  Changes: Source and taxonomy
• Version 1.5: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Refinement description