作者: Benqiang Li , Jiaxin Ye , Yuan Lin , Man Wang , Rui Jia
DOI: 10.1016/J.BIOLOGICALS.2014.05.006
关键词:
摘要: Phosphoprotein (P), involved in virus RNA replication and transcription, had become a new target for the research on treating Newcastle disease (NDV). Here we described cloning expression of phosphoprotein from NDV, then screened anti-P antibodies chicken single chain fragment variable (scFv) library, which were generated chickens immunized with ND vaccines. As first step, recombinant vector pET28a-P was successfully constructed. In following two positive scFv clones library selected by indirect enzyme-linked immunosorbent assay (ELISA) method. The sequence analysis showed that there more variation complementary determine region (CDR) VH VL, CDR3 exhibited significant change amino acid number type. another experiment, purified used shown to be specific NDV-P western blot. results indicated strategy this experiment proved convenient way screening antibody, paved immunization diagnosis exploration integrated control NDV.