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Cadmium(II) complexes of the glycerophosphodiester-degrading enzyme GpdQ and a biomimetic N,O ligand

Mirams, Ruth E; Smith, Sarah J; Hadler, Kieran S; Ollis, David; Schenk, Gerhard; Gahan, Lawrence

Description

The glycerophosphodiester-degrading enzyme GpdQ from Enterobacter aerogenes is a promising bioremediator owing to its ability to degrade some organophosphate pesticides and diester products originating from the hydrolysis of nerve agents such as VX. Here, the cadmium derivative of GpdQ was prepared by reconstituting the apoenzyme. Catalytic measurements with (Cd2+)2-GpdQ and the phosphodiester substrate bis(4-nitrophenyl)phosphate yield kcat = 15 s-1. The pKa of 9.4, determined from the pH...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/52366
Source: Journal of Biological Inorganic Chemistry
DOI: 10.1007/s00775-008-0392-5

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