Nonredox nickel enzymes

MJ Maroney, S Ciurli - Chemical reviews, 2014 - ACS Publications
The importance of nickel enzymes, where nickel serves as an essential cofactor, in Archaea,
bacteria, plants, and primitive eukaryotes, is well documented. 1 Despite the fact that no …

Divergent evolution of enzymatic function: mechanistically diverse superfamilies and functionally distinct suprafamilies

JA Gerlt, PC Babbitt - Annual review of biochemistry, 2001 - annualreviews.org
▪ Abstract The protein sequence and structure databases are now sufficiently representative
that strategies nature uses to evolve new catalytic functions can be identified. Groups of …

A new proposal for urease mechanism based on the crystal structures of the native and inhibited enzyme from Bacillus pasteurii: why urea hydrolysis costs two nickels

S Benini, WR Rypniewski, KS Wilson, S Miletti, S Ciurli… - Structure, 1999 - cell.com
Background: Urease catalyzes the hydrolysis of urea, the final step of organic nitrogen
mineralization, using a bimetallic nickel centre. The role of the active site metal ions and …

The catalytic mechanisms of binuclear metallohydrolases

N Mitić, SJ Smith, A Neves, LW Guddat… - Chemical …, 2006 - ACS Publications
Binuclear metallohydrolases are a structurally diverse group of enzymes that use binuclear
metal ion centers to catalyze the hydrolysis of amides and esters of carboxylic and …

Interplay of metal ions and urease

EL Carter, N Flugga, JL Boer, SB Mulrooney… - Metallomics, 2009 - academic.oup.com
Urease, the first enzyme to be crystallized, contains a dinuclear nickel metallocenter that
catalyzes the decomposition of urea to produce ammonia, a reaction of great agricultural …

Structures of Cys319 Variants and Acetohydroxamate-Inhibited Klebsiella aerogenes Urease,

MA Pearson, LO Michel, RP Hausinger… - Biochemistry, 1997 - ACS Publications
Cys319 is located on a mobile flap covering the active site of Klebsiella aerogenes urease
but does not play an essential role in catalysis. Four urease variants altered at position C319 …

Structural properties of the nickel ions in urease: novel insights into the catalytic and inhibition mechanisms

S Ciurli, S Benini, WR Rypniewski, KS Wilson… - Coordination Chemistry …, 1999 - Elsevier
This work provides a comprehensive critical summary of urease spectroscopy,
crystallography, inhibitor binding, and site-directed mutagenesis, with special emphasis …

Active sites of transition-metal enzymes with a focus on nickel

U Ermler, W Grabarse, S Shima, M Goubeaud… - Current opinion in …, 1998 - Elsevier
Since 1995, crystal structures have been determined for many transition-metal enzymes, in
particular those containing the rarely used transition metals vanadium, molybdenum …

The complex of Bacillus pasteurii urease with β-mercaptoethanol from X-ray data at 1.65-Å resolution

S Benini, WR Rypniewski, KS Wilson, S Ciurli… - JBIC Journal of …, 1998 - Springer
The structure of β-mercaptoethanol-inhibited urease from Bacillus pasteurii, a highly
ureolytic soil micro-organism, was solved at 1.65 Å using synchrotron X-ray cryogenic …

Nickel complexes of carboxylate-containing polydentate ligands as models for the active site of urease

H Carlsson, M Haukka, A Bousseksou… - Inorganic …, 2004 - ACS Publications
Two new carboxylate-containing polydentate ligands have been synthesized, the symmetric
ligand 2, 6-bis [N-(N-(carboxylmethyl)-N-((1-methylimidazol) methyl) amine) methyl]-4 …