Crystal structure of CcdB, a topoisomerase poison from E. coli.
Loris, R., Dao-Thi, M.H., Bahassi, E.M., Van Melderen, L., Poortmans, F., Liddington, R., Couturier, M., Wyns, L.(1999) J Mol Biol 285: 1667-1677
- PubMed: 9917404 
- DOI: 10.1006/jmbi.1998.2395
- Primary Citation of Related Structures:  
1VUB, 2VUB, 3VUB, 4VUB - PubMed Abstract: 
The crystal structure of CcdB, a protein that poisons Escherichia coli gyrase, was determined in three crystal forms. The protein consists of a five-stranded antiparallel beta-pleated sheet followed by a C-terminal alpha-helix. In one of the loops of the sheet, a second small three-stranded antiparallel beta-sheet is inserted that sticks out of the molecule as a wing ...