INFECTIOUS BOVINE RHINOTRACHEITIS VIRUS NEUTRALIZATION TEST

摘要

PURPOSE: Provided is a method for detecting the infectious bovine rhinotracheitis virus(IBRV)-specific neutralizing antibody by ELISA using gD protein of IBRV, thereby the IBRV-specific neutralizing antibody can be rapidly and exactly detected. CONSTITUTION: The recombinant baculovirus that produces gD protein of IBRV is produced by the steps of: inserting the K gene fragment of an IBRV PQ strain into a plasmid pBluescript SK(+) to prepare a plasmid pPQ8H; inserting the fragment of pPQ8H into a plasmid pBluescript SK(+) to prepare pPQM1.3; inserting the universal stop sequence 5'- TAATTAATTAA- 3' and a simian virus 40 polyadenylation signal into a plasmid pVL1393 to prepare a vector pVL-SV40p(A); ligating pVL-SV40p(A) with pPQ1.3 to produce the recombinant baculovirus that produces gD protein of IBRV. The method for detecting the IBRV-specific neutralizing antibody comprises the steps of: coating the purified anti-gD monoclonal antibody using a coating buffer and blocking-reacting with a blocking solution; coating-reacting gD protein of IBRV, which is produced by the recombinant baculovirus, by diluting it in PBS; reacting the coating-reacted gD protein with bovine serum and washing it with water; subjecting it to the anti-bovine conjugate-reaction with a serum diluting solution; and coloring it and measuring its optical density.