Download MendeleyThe Three-Dimensional Structure of Capsule-Specific Cmp:2-Keto-3-Deoxy-Manno-Octonic Acid Synthetase from Escherichia Coli
Jelakovic, S., Jann, K., Schulz, G.E.(1996) FEBS Lett 391: 157
- PubMed: 8706906
- DOI: https://doi.org/10.1016/0014-5793(96)00724-7
- Primary Citation of Related Structures:
1H6J - PubMed Abstract:
CMP-Kdo synthetases from Gram-negative bacteria activate Kdo for incorporation into lipo- and capsule-polysaccharides. Here we report the crystal structure of the capsule-specific synthetase from E. coli at 2.3 A resolution. The enzyme is a dimer of 2 x 245 amino acid residues assuming C2 symmetry. It contains a central predominantly parallel beta-sheet with surrounding helices. The chain fold is novel; it is remotely related to a double Rossmann fold. A large pocket at the carboxyl terminal ends of the central. beta-strands most likely accommodates the catalytic center. A putative phosphate binding site at the loop between the first beta-strand and the following helix is indicated by a bound iridium hexachloride anion.
Organizational Affiliation:
Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.
