Anti-VCY1B antibodies are used in the immunodetection of the protein variable charge Y-linked 1B. It is notably expressed in the testis. Synonyms for this target antigen include basic charge, Y-linked 1, basic protein on Y chromosome, 1, testis-specific basic protein on Y, 1, variably charged protein Y, and testis-specific basic protein Y 1. These VCY1B antibodies are widely used in Western Blot experiments, among other applications.