The origin of the beta-lactam carbons of clavulanic acid by Thirkettle, J, Baldwin, J, Edwards, J, Griffin, J, Schofield, C

ORF17 from the clavulanic acid biosynthesis gene cluster catalyzes the ATP-dependent formation of N-glycyl-clavaminic acid. by Arulanantham, H, Kershaw, N, Hewitson, K, Hughes, C, Thirkettle, J, Schofield, C

beta-lactam synthetase: Implications for beta-lactamase evolution by McNaughton, H, Thirkettle, J, Zhang, Z, Schofield, C, Jensen, SE, Barton, B, Greaves, P