5G4H image
Entry Detail
PDB ID:
5G4H
Keywords:
Title:
1.50 A resolution catechol (1,2-dihydroxybenzene) inhibited Sporosarcina pasteurii urease
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2016-05-13
Release Date:
2016-12-07
Method Details:
Experimental Method:
Resolution:
1.50 Å
R-Value Free:
0.15
R-Value Work:
0.12
R-Value Observed:
0.12
Space Group:
P 63 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:UREASE SUBUNIT GAMMA
Chain IDs:A
Chain Length:100
Number of Molecules:1
Biological Source:SPOROSARCINA PASTEURII
Polymer Type:polypeptide(L)
Description:UREASE SUBUNIT BETA
Chain IDs:B
Chain Length:126
Number of Molecules:1
Biological Source:SPOROSARCINA PASTEURII
Polymer Type:polypeptide(L)
Description:UREASE SUBUNIT ALPHA
Chain IDs:C
Chain Length:570
Number of Molecules:1
Biological Source:SPOROSARCINA PASTEURII
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
CXM A MET N-CARBOXYMETHIONINE
KCX C LYS LYSINE NZ-CARBOXYLIC ACID
Primary Citation
Inactivation of Urease by Catechol: Kinetics and Structure.
J.Inorg.Biochem. 166 182 ? (2016)
PMID: 27888701 DOI: 10.1016/J.JINORGBIO.2016.11.016

Abstact

Urease is a Ni(II)-containing enzyme that catalyzes the hydrolysis of urea to yield ammonia and carbamate at a rate 1015 times higher than the uncatalyzed reaction. Urease is a virulence factor of several human pathogens, in addition to decreasing the efficiency of soil organic nitrogen fertilization. Therefore, efficient urease inhibitors are actively sought. In this study, we describe a molecular characterization of the interaction between urease from Sporosarcina pasteurii (SPU) and Canavalia ensiformis (jack bean, JBU) with catechol, a model polyphenol. In particular, catechol irreversibly inactivates both SPU and JBU with a complex radical-based autocatalytic multistep mechanism. The crystal structure of the SPU-catechol complex, determined at 1.50Å resolution, reveals the structural details of the enzyme inhibition.

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