Flexibility revealed by the 1.85 A crystal structure of the beta sliding-clamp subunit of Escherichia coli DNA polymerase III.
Oakley, A.J., Prosselkov, P., Wijffels, G., Beck, J.L., Wilce, M.C., Dixon, N.E.(2003) Acta Crystallogr D Biol Crystallogr 59: 1192-1199
- PubMed: 12832762 
- DOI: 10.1107/s0907444903009958
- Primary Citation of Related Structures:  
1MMI - PubMed Abstract: 
The beta subunit of the Escherichia coli replicative DNA polymerase III holoenzyme is the sliding clamp that interacts with the alpha (polymerase) subunit to maintain the high processivity of the enzyme. The beta protein is a ring-shaped dimer of 40.6 kDa subunits whose structure has previously been determined at a resolution of 2 ...