These three plasmids were transformed into the unicellular eukaryotic S. cerevisiae BJ1991 and the galactose induced transformants were analyzed with the SDS-PAGE.

• 将此3种质粒分别转化单细胞真核生物酿酒酵母BJ1991，得到的转化子经半乳糖诱导表达后进行菌体全蛋白的SDS-PAGE分析。