1. McMurry, L. M., Oethinger, M. & Levy, S. B. Nature 394, 531–532 (1998).
2. Turnowsky, F., Fuchs, K., Jeschek, C. & Hogenauer, G. J. Bacteriol. 171, 6555–6565 (1989).
3. Baldock, C., Rafferty, J. B., Stuitje, A. R., Slabas, A. R. & Rice, D. W. J. Mol. Biol. 284, 1529–1546 (1998).
4. Baldock, C. et al. Science 274, 2107–2110 (1996).
5. Boer, G.-J. et al. Mol. Microbiol. 31, 443–451 (1999).