Download MendeleyThe Deinococcus radiodurans DR1245 Protein, a DdrB Partner Homologous to YbjN Proteins and Reminiscent of Type III Secretion System Chaperones.
Norais, C., Servant, P., Bouthier-de-la-Tour, C., Coureux, P.D., Ithurbide, S., Vannier, F., Guerin, P.P., Dulberger, C.L., Satyshur, K.A., Keck, J.L., Armengaud, J., Cox, M.M., Sommer, S.(2013) PLoS One 8: e56558-e56558
- PubMed: 23441204
- DOI: https://doi.org/10.1371/journal.pone.0056558
- Primary Citation of Related Structures:
4H5B - PubMed Abstract:
The bacterium Deinococcus radiodurans exhibits an extreme resistance to ionizing radiation. A small subset of Deinococcus genus-specific genes were shown to be up-regulated upon exposure to ionizing radiation and to play a role in genome reconstitution. These genes include an SSB-like protein called DdrB. Here, we identified a novel protein encoded by the dr1245 gene as an interacting partner of DdrB. A strain devoid of the DR1245 protein is impaired in growth, exhibiting a generation time approximately threefold that of the wild type strain while radioresistance is not affected. We determined the three-dimensional structure of DR1245, revealing a relationship with type III secretion system chaperones and YbjN family proteins. Thus, DR1245 may display some chaperone activity towards DdrB and possibly other substrates.
Organizational Affiliation:
Department of Biochemistry, University of Wisconsin College of Agriculture and Life Sciences, Madison, Wisconsin, United States of America.
