Antibody and T cell recognition sites on glycoproteins comprising the GCI complex of human cytomegalovirus

Glycopeptides of the gcI (gB) complex of human cytomegalovirus are disclosed. They possess unique B cell and T cell epitopes not present in other gcI glycopeptides. Glycopeptide fragments which comprise minimal antigenic determinants of the gcI complex are also disclosed, as are recombinant expression vectors, vaccines, and diagnostic methods.