Objective To clone and express the cysteine protease genes AcCBL1 and AcCBL2 of Angiostrongylus cantonensis,and analyze the immunoreactivity of the purified recombinant proteins.Methods Two cysteine protease genes AcCBL1 and AcCBL2 were identified from Angiostrongylus cantonensis fourth-stage larvae cDNA library,and cloned into pET-28a vector to generate recombinant plasmids pET-28a-AcCBL1 and pET-28aAcCBL2,respectively.The constructed recombinant plasmids were transformed into(E.coli)BL21(DE3)respectively ...