K. Valegård,
A. Iqbal,
N. J. Kershaw,
D. Ivison,
C. Généreux,
A. Dubus,
C. Blikstad,
M. Demetriades,
R. J. Hopkinson,
A. J. Lloyd,
D. I. Roper,
C. J. Schofield,
I. Andersson and
M. A. McDonough Structural studies of the protein encoded by orf12 of the clavulanic acid biosynthesis gene cluster from S. clavuligerus reveal a two-domain structure.