- Table 5: Proteins identified (MALDI-TOF Ultraflex II, Bruker Daltonics, Bremen, Germany; SwissProt Data base; Level of identification 95 % (p <0,05; Score ≥54)). A and B: two gels prepared; Spot n° as in Fig. 4, increasing within groups; MW = molecular weight, pI = iso electric point; Da = Dalton. ID groups according to score value (> 54), MW between 20 to100 kDa, pI between pH 4 to 7: Group 1—all three criteria met. Group 2—two out of three criteria met. Group 3 – only one significant score