In DAS-ELISA, two MAbs G10 and C11 were identified which recognized CiLV-C in crude extracts of CiLV-C infected tissues. The MAbs G10 and C11 recognized the unique conformational epitopes in the coat protein of CiLV-C virion but G10 only worked as a capturing antibody and C11 worked only as the detection antibody. This enabled the development of a DAS-ELISA using G10 as the coating (capture) MAb and C11 as the AP-conjugated detection MAb with increased specificity for CiLV-C detection from crude extracts. Coat protein p29 of CiLV-C could not be detected with the conjugated MAb-C11 ifthe virus was
first captured with the other MAbs analyzed (C11, E10 and F9). One could speculate that the conformation of the CiLV-C coat protein may be altered after binding these MAbs resulting in the epitope specific for C11 being unavailable for binding and perhaps is only be exposed when CiLV-C is first bound with MAb-G10.