Figure 5
Oligomeric state of 1-Cys SiPrx in solution and the residues involved in oligomerization. (a) SEC chromatogram indicating the peak corresponding to blue dextran (BD), which was used for determination of the void volume V0, and 1-Cys SiPrx peaks 1 and 2. (b) Calibration curve used for the calculation of the molecular weights of the 1-Cys SiPrx peaks. (c) Superimposition of dimeric portions of the 1-Cys SiPrx, ApPrx and PhPrx structures. For each dimer, one monomer is depicted in gray and the other in yellow (SiPrx), blue (ApPrx) or green (PhPrx). Residues that are involved in crucial functions of the protein are colored as indicated. |