Figure 4

SDS-PAGE electrophoretic pattern comparisons of recombinant P. pastoris . (A) Enzymatic analysis of the MCAP protein with endoglycosidase (Endo H). 25 μg of the protein products were digested with endo H and subjected to SDS-PAGE. Lane 1, molecular standards; lane 2, secreted expression from X-33/pGAPZα+MCAP-5 (digested); lane 3, secreted expression from X-33/pGAPZα+MCAP-5 (undigested); lane 4, endo H. The arrows indicate the expressed forms of MCAP protein (above N-glycosylated protein, below the deglycosylated protein, respectively). (B) Analysis of the purified MCAP protein on HiTrap SP Sepharose Fast Flow. Lane 1, molecular standards; lane 2, 10 μg of secreted expression from recombinant X-33/pGAPZα+SyMCAP-6. The arrows indicate the expressed forms of MCAP protein (above N-glycosylated protein, below the deglycosylated protein, respectively).