Reactivity patterns to human rotavirus strains of a monoclonal antibody against VP2, a component of the inner capsid of rotavirus. Brief report.

A non-neutralizing monoclonal antibody (YO-60) against human rotavirus was found to be directed to VP2 (90,000-dalton protein), one of the two major components of the inner capsid. The reactivity patterns of the YO-60 antibody were very similar, though not identical, to those of subgroup II-specific YO-5 monoclonal antibody directed to VP6 (42,000-dalton protein), the other major component of the inner capsid. These results indicated the possible presence of a subgroup-specific antigen on VP2 in addition to the one on VP6.