Lightning-Link Phycoerythrin Labeling Kit
 

R-Phycoerythrin (R-PE)
R-Phycoerythrin is a large 240kDa red phycobiliprotein isolated from red algae. It has a strong absorption peak at 565nm and a secondary absorption peak at 492nm. The maximum emission peak is at 575nm and its extinction coefficient is 1.96 x 106 cm^-1 M^-1. The protein is commonly used for fluorescent immunolabeling, particularly in applications involving fluorescent-activated cell sorting.

B-Phycoerythrin (B-PE)
B-Phycoerythrin is another red 240kDa phycobiliprotein. Due to its different subunit composition, B-PE has a slightly different absorbance and emission spectrum to R-PE and could therefore be better suited to some instruments. B-Phycoerythrin absorbs strongly at 545nm and emits strongly at 575nm with an extinction coefficient of 2.41 x 106 cm^-1 M^-1.

C-Phycoerythrin (C-PE)
C-Phycoerythrin is a much smaller 40kDa phycobiliprotein isolated from a proprietary cyanobacterium. It has an absorption peak at 550nm and an emission peak at 575nm. The protein has an extinction coefficient of 2.65 x 105 cm^-1 M^-1