Figure 5. Electrophoresis of recombinant cell proteins in 12% PAAG. M is the molecular mass marker. Protein molecular masses of 75 kDa, 60 kDa, 37 kDa, and 25 kDa are indicated on the left. 1 - ReI-9ex protein with a calculated molecular mass of 28.5 kDa after purification on a Ni-Sepharose column; 2 - ReII-10ex protein with a calculated molecular mass of 25.6 kDa.