Expression and characterization of the non-structural protein V of small ruminant morbillivirus

Virusdisease. 2019 Sep;30(3):465-468. doi: 10.1007/s13337-019-00539-0. Epub 2019 Jul 24.

Abstract

Peste-des-petits ruminants is a transboundary viral disease of small ruminants caused by small ruminant morbillivirus (SRMV). In the present study, the full-length V gene of SRMV was constructed through site-directed mutagenesis from the P gene transcripts of the vaccine virus (Sungri/96 India) and expressed in a prokaryotic expression system. In animals, the seroconversion against this protein occurs from 14-days and is getting produced from 48 h in cell culture. An indirect ELISA developed using this protein has a relative sensitivity and relative specificity of 77.73% and 73.775%, respectively as compared to c-ELISA. In this ELISA, it was observed that most of the convalescent animals elicited higher level of antibodies than vaccinated animals.

Keywords: Indirect ELISA; Peste-des-petits-ruminants; Seroconversion; Small ruminant morbillivirus; V protein.