Crystal Structure of E.Coli Uvrb C-Terminal Domain, and a Model for Uvrb-Uvrc Interaction
Sohi, M., Alexandrovich, A., Moolenaar, G., Visse, R., Goosen, N., Vernede, X., Fontecilla-Camps, J., Champness, J., Sanderson, M.R.(2000) FEBS Lett 465: 161
- PubMed: 10631326 
- DOI: https://doi.org/10.1016/s0014-5793(99)01690-7
- Primary Citation of Related Structures:  
1QOJ - PubMed Abstract: 
A crystal structure of the C-terminal domain of Escherichia coli UvrB (UvrB') has been solved to 3.0 A resolution. The domain adopts a helix-loop-helix fold which is stabilised by the packing of hydrophobic side-chains between helices. From the UvrB' fold, a model for a domain of UvrC (UvrC') that has high sequence homology with UvrB' has been made. In the crystal, a dimerisation of UvrB domains is seen involving specific hydrophobic and salt bridge interactions between residues in and close to the loop region of the domain. It is proposed that a homologous mode of interaction may occur between UvrB and UvrC. This interaction is likely to be flexible, potentially spanning > 50 A.
Organizational Affiliation: 
The Randall Institute, King's College, 26-29 Drury Lane, London, UK.