论文部分内容阅读
The specific primers derived from T.spiralis serine proteinase inhibitor(TsSerPIN)gene in GenBank database were designed and used to amplify the TsSerPIN gene from total RNA isolated from T.spiralis muscle larvae.The RT-PCR Produet was ligated into the expression vector pET30a and recombinant plasmid was transformed to E.coli BL21(DE3)and induced by IPTG for expression.