Download MendeleyStructure of DraD invasin from uropathogenic Escherichia coli: a dimer with swapped beta-tails.
Jedrzejczak, R., Dauter, Z., Dauter, M., Piatek, R., Zalewska, B., Mroz, M., Bury, K., Nowicki, B., Kur, J.(2006) Acta Crystallogr D Biol Crystallogr 62: 157-164
- PubMed: 16421447
- DOI: https://doi.org/10.1107/S0907444905036747
- Primary Citation of Related Structures:
2AXW - PubMed Abstract:
The dra gene cluster of uropathogenic strains of Escherichia coli produces proteins involved in bacterial attachment to and invasion of the eukaryotic host tissues. The crystal structure of a construct of E. coli DraD possessing an additional C-terminal extension of 13 amino acids, including a His6 tag, has been solved at a resolution of 1.05 angstroms. The protein forms symmetric dimers through the exchange of the C-terminal beta-strands, which participate in the immunoglobulin-like beta-sandwich fold of each subunit. This structure confirms that DraD is able to act as an acceptor in the donor-strand complementation mechanism of fiber formation but, in contrast to DraE adhesin, its native sequence does not have a donor strand; therefore, DraD can only be located at the tip of the fiber.
Organizational Affiliation:
Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439, USA.
