Phosphotyrosine Monoclonal Antibody (Clone RM111) is a probe for immunochemical detection of phosphorylated tyrosine residues on proteins by immunoblotting. The phosphorylation of tyrosine residues by tyrosine kinases serves a variety of purposes, including altering activity, stability, and interaction with other biomolecules. Phosphorylation may be persistent or transient, with dephosphorylation mediated by phosphatases.WARNING This product is not for human or veterinary use.