fusion protein 14-3-3-ZsGreen. The results are shown in Fig. 5. In order to further prove theT vector’s function,the positive recombinants of pQE-hRBP with the insert gene in the right direction were selected for expression of hRBP. SDS– PAGE and Western blot analysis showed that the bands of protein expressed were about 25kDa, which corresponds to the molecular weight of hRBP protein in Fig.6.MALDI-TOF analysis suggested that the Mascot score was 80 (threshold is 56 score,p<0.05),and the identification of the protein in the recombinant E. coli JM107 was confirmed by trypsin digestion and mass spectroscopy and it is retinol-binding protein 4.
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