The crystal structures of Lactococcus lactis MG1363 Dps proteins reveal the presence of an N-terminal helix that is required for DNA binding.
Stillman, T.J., Upadhyay, M., Norte, V.A., Sedelnikova, S.E., Carradus, M., Tzokov, S., Bullough, P.A., Shearman, C.A., Gasson, M.J., Williams, C.H., Artymiuk, P.J., Green, J.(2005) Mol Microbiol 57: 1101-1112
- PubMed: 16091047 
- DOI: 10.1111/j.1365-2958.2005.04757.x
- Primary Citation of Related Structures:  
1ZS3, 1ZUJ - PubMed Abstract: 
Dps proteins play a major role in the protection of bacterial DNA from damage by reactive oxygen species. Previous studies have implicated the extended lysine-containing N-terminal regions of Dps subunits in DNA binding, but this part of the structure has not previously been observed crystallographically ...