Structure of IDP90828

Crystal structure of anabolic ornithine carbamoyltransferase from Campylobacter jejuni subsp. jejuni NCTC 11168

Edit deposit information
CSGID target
IDP90828 
PDB Id
3TPF (NCBI MMDB
Authors
I.G.Shabalin,O.Onopriyenko,S.Grimshaw,P.J.Porebski,M.Grabowski,A.Savchenko,M.Chruszcz,W.F.Anderson,W.Minor,Center For Structural Genomics Of Infectious Diseases (Csgid) 
Responsible person
Ivan Shabalin 
Responsible lab
University of Virginia 
Deposition Date
Sep 07, 2011 
Release Date
Sep 21, 2011 

Annotation

Description
Ornithine carbamoyltransferase (OTC) catalyzes the reversible transfer of the carbamoyl group from carbamoyl phosphate (CP) to the Nε atom of L-ornithine (ORN) to produce L-citrulline. There are two types of the enzyme – anabolic (aOTC) and catabolic (cOTC). Anabolic OTCes participate in the urea cycle and L-arginine biosynthesis. Catabolic OTCes are part of the catabolic arginine deiminase pathway found in a number of microorganisms. The reported structure is for the anabolic enzyme from food-borne pathogen Campylobacter jejuni. The structure has two trimers in the asymmetric unit. 
Functional assignment
 

Ligands

Ligand code Name Ligand type
MSE modified residue
175 3,5-dihydro-5-methylidene-4h-imidazol-4-on

Structure information

Unit cell parameters

Space Group
P 21 21 2  
Unit Cell

a=157.16Å, b=87.40Å, c=141.56Å
α=90.00, β=90.00, γ=90.00 
Solvent content
 
Matthews coefficient
 

Refinement

Data for the highest resolution shell is in parentheses.
Resolution range
50.00-2.70Å (2.77-2.70Å)  
Rall(%)
20.4 
Rwork(%)
20.2 (34.9) 
Rfree(%)
24.0 (40.8) 
Num. observed reflections
54247 (3713) 
Num. Rfree reflections
2766 (170) 
Completeness(%)
99.8 (99.9) 

Model parameters

Num Atoms
13982  
Num Waters
104  
Num Hetatoms
0  
Model mean isotropic B factor
80.470Å2  
RMSD bond length
0.017Å  
RMSD bond angle
1.772°  
Filename uploaded
hkl_refine_400_tls.pdb (uploaded on Sep 21, 2011 6:46 PM)  
Inserted
Sep 21, 2011