Monoclonal antibodies raised against carp myosin can identify specific subfragments but cannot distinguish between myosin from carp acclimated to different temperatures.
Antibodies map carp myosin S1 subfragments without distinguishing acclimation temperatures; leaves open isoform detection for thermal adaptation studies.
Several cell lines producing monoclonal antibodies against carp fast muscle myosin were obtained by fusion of immunized BALB/c mouse spleen cells with syngenetic NS-1 myeloma cells and subsequent cloning by the limiting dilution method. Monoclonal antibodies, which were obtained when myosin was injected to mice as an antigen, recognized myosin subfragment-1 (S 1). Further assignments for antigenic sites in the S1 molecule revealed that antibodies from 35A11 and 41C2 cell lines were specific to 50 and 25 kDa fragments of S 1 tryptic digests, respectively. No cell line producing monoclonal antibody specific to the 20 kDa fragment of S 1 tryptic digests was established. On the other hand, cell lines for monoclonal antibodies against myosin rod were established only when the rod was administered to mice as an antigen. The 37G3 cell line produced the antibody specific to myosin rod and reacted with its light meromyosin part. However, all monoclonal antibodies thus raised failed to discriminate between two types of myosin from carp acclimated to 10 and 30°C, irrespective of myosin S 1 or rod.
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Nakaya et al. (1994) studied this question.
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