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Title: The production and characterisation of dinitrocarbanilide antibodies raised using antigen mimics. Author: Connolly L, Fodey TL, Crooks SR, Delahaut P, Elliott CT. Journal: J Immunol Methods; 2002 Jun 01; 264(1-2):45-51. PubMed ID: 12191508. Abstract: Polyclonal antibodies were produced to detect the coccidiostat nicarbazin. Due to structural constraints of the active component of nicarbazin, dinitrocarbanilide (DNC), three different compounds that shared a common substructure with DNC were used as antigen mimics. The compounds (N-succinyl-L-alanyl-L-alanyl-L-alanine 4-nitroanilide (SAN), L-glutamic acid gamma-(p-nitroanilide) (GAN) and p-nitrosuccinanilic acid (NSA)) were conjugated to a carrier protein and used in the immunisation of rabbits. Five different polyclonal sera were produced and consequently characterised. The antibodies exhibited an IC(50) range of 2.3-7.6 ng/ml using a competitive ELISA procedure. Serum from one rabbit, R555, exhibited an IC(50) of 2.9 ng/ml for DNC and cross-reactivity studies showed that this serum was specific for DNC and did not cross-react with other coccidiostats such as halofuginone, toltrazuril or ronidazole.[Abstract] [Full Text] [Related] [New Search]