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| Structure and function of core metabolic enzymes in enteric pathogens. | |||||||||||||
H pylori is the causative organism of gastric ulcers and Campylobacter jejuni is a major cause of diarrhoea. Examples of both these organisms have had their full genomes sequenced. Our (and others) experimental work combined with analysis of the open reading frames has allowed us to reconsider the role of the glycolysis/gluconeogenic pathways away from the usual model of being for energy production and storage to a biosynthetic role. The project will involve cloning, expressing, purification, enzymatic characterisation, crystallisation and solving the crystal structures of key enzymes from these pathways. Experiments will then be devised in order to understand how these enzymes are adapted for their roles and if it is possible to design specific inhibitors that could be used as specific drugs to kill these bacteria. http://www2.le.ac.uk/departments/biochemistry/staff/moody Preliminary Publications: PR Elliott, D Evans, J Greenwood and PCE Moody (2008) Expression, purification, crystallisation and preliminary X-ray analysis of a NADP-dependent Glyceraldehyde-3-phosphate Dehydrogenase from Helicobacter pylori, Acta Cryst F 64; 723-726 PR Elliott, S Mohammad, H.J Melrose and PCE Moody (2008) Expression, purification, crystallisation and preliminary X-ray analysis of a NAD-dependent Glyceraldehyde-3-phosphate dehydrogenase from Helicobacter pylori. Acta Cryst F 64; 727-729 Other representative group publications: SK. Badyal, CL. Metcalfe, J Basran, I Efimov, PCE Moody and EL Raven (2008) Iron Oxidation State Modulates Active Site Structure in a Heme Peroxidase. Biochemistry 47; 4403-4409 CL Metcalfe, IK Macdonald, EJ Murphy, KA Brown, EL Raven & PCE Moody (2008). The tuberculosis prodrug isoniazid bound to activating peroxidases. J. Biol. Chem. 283; 6193-6200 W-C Huang, ACG Westlake, J-D Marechal, MG Joyce, PCE Moody, & GCK Roberts (2007) Filling a hole in cytochrome P450 BM3 improves substrate binding and catalytic efficiency, J. Mol. Biol. 373(3):633-51 VE Pye, AP Tingey, RL Robson & PCE Moody (2004) The Structure and Mechanism of Serine Acetyltransferase from Escherichia coli. J. Biol. Chem. 279; 40729-40736 H Khan, T Barna, RJ. Harris, NC. Bruce, I Barsukov, AW Munro, PCE Moody & NS Scrutton, (2004) Atomic Resolution Structures and Solution Behavior of Enzyme-Substrate Complexes of Enterobacter cloacae PB2 Pentaerythritol Tetranitrate Reductase: Multiple conformational states and implications for the mechanism of nitroaromatic explosive degradation J. Biol. Chem. 279; 30563 – 30572 KH Sharp, M Mewies, PCE Moody & E Lloyd Raven, (2003) Crystal structure of the ascorbate peroxidase-ascorbate complex Nature Structural Biology 10; 303-397 T Barna, HL Messiha, C Petosa, NC. Bruce, NS Scrutton, & PCE Moody (2002) Crystal Structure of Bacterial Morphinone Reductase and Properties of the C191A Mutant Enzyme. J. Biol. Chem. 277; 30976 – 30983 JEA Wibley, AE Pegg & PCE Moody (2000) Crystal Structure of the Human O6Alkylguanine-DNA Alkyltransferase. Nucl. Acids Res. 28; 393-401 |
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