PB32-100- R-Phycoerythrin (red algae), 100 mg (formerly ProZyme). R-Phycoerythrin (RPE+) is a phycobiliprotein isolated from a species of red algae chosen specifically because it yields one of the most highly fluorescent of the RPEs. Like other phycobiliproteins, Agilent RPE+ PB31 is fluorescent, with an extremely high absorptivity, a high quantum efficiency, a large Stokes shift, and excitation and emission bands at visible wavelengths. It is a stable protein which can be easily linked to antibodies and other proteins by conventional protein cross-linking techniques without altering its spectral characteristics. Bulk quantities are available, contact us for more information.