Red Fluorescent Protein is a protein which exhibits bright red fluorescence when exposed to blue light. Fluorescent proteins are members of a structurally homologous class of proteins that share the unique property of being self-sufficient to form a visible wavelength chromophore from a sequence of 3 amino acids within their own polypeptide sequence. It is common research practice for biologists to introduce a gene encoding an engineered fluorescent protein into living cells and subsequently visualize the location and dynamics of the gene product using fluorescence microscopy. Synonyms: Monoclonal RFP Tag antibody, anti-RFP Tag antibody, RFP antibody, Red Fluorescent Protein antibody, RF5R antibody.