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Jonathan Worrall MCB away day 25.09.13. An appraisal of metals used in proteins Systematic survey of 1371 different enzymes with a known 3D structure.

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Presentation on theme: "Jonathan Worrall MCB away day 25.09.13. An appraisal of metals used in proteins Systematic survey of 1371 different enzymes with a known 3D structure."— Presentation transcript:

1 Jonathan Worrall MCB away day 25.09.13

2 An appraisal of metals used in proteins Systematic survey of 1371 different enzymes with a known 3D structure 47% required metals with 41% requiring metals at their catalytic sites JBIC (2008) 13, 1205-1218 Nature (2009) 460, 823-830

3 Research Interests Microbial biotechnology Apoptosis Cytochrome c/phospholipid complexes Streptomyces lividans Cu Worrall & Vijgenboom 2010, Nat. Prod. Reps. 5, 742. Cuproproteins and enzymes must have a role in triggering development switches

4 R5 80 hours R5 10 μM Cu(II) 80 hours S. lividans R5 140 hours ΔSLI4214 ΔSLI4213 ΔSLI4212 ΔSLI3188  Cuproproteins/enzymes have morphological phenotypes Blundell et al. 2013, Open Biology 3, 120163

5  SLI3188 S. lividans Morphological Engineering Reengineering of Streptomyces strains as hosts for synthetic biology approaches to create sustainable industrial production platforms

6 Techniques used Molecular biology Recombinant protein over-expression Protein chromatography UV-visible, circular dichroism (CD) spectroscopies Electron paramagnetic resonance (EPR) spectroscopy Nuclear magnetic resonance (NMR) spectroscopy (UEA) X-ray crystallography Isothermal titration calorimetry (ITC) Stopped-flow kinetics Electrophoretic mobility shift assays (EMSA)

7 Collaborations UEA (Cytochrome c) Professor Geoff Moore (NMR) Professor Julea Butt (Electrochemistry) Molecular Biotechnology, Leiden, NL Dr Erik Vijgenboom Essex Dr Mike Hough (X-ray) Dr Dimitri Svistunenko (EPR) Professor Mike Wilson (SF-kinetics)


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