1. Department of BiosciencesUniversity of Exeter Henry Wellcome Building for Biocatalysis Stocker Road Exeter EX4 4QD UK
2. Living Systems InstituteUniversity of Exeter Stocker Road Exeter EX4 4QDm UK
3. GlaxoSmithKline R&D LtdMedicines Research Centre Gunnels Wood Road, Stevenage Hertfordshire SG1 2NY UK