Purified recombinant CS6, CssA and CssB proteins.

<p>The protein preparations were separated on 10% (A) and 12% (B) NuPAGE BisTris gels, and stained by Coomassie Brilliant Blue R-250. The lanes on A were 1, molecular mass standards; 2, CS6 protein, and the lanes on B were 1, molecular mass standards; 2, CssA protein (with polyhistidine tag); 3, CssB protein (fused to glutathione-S-transferase (26 kDa) and with polyhistidine tag).