Phycoethyrin (RPE) is a 240 kDa protein from the light-harvesting phycobilliprotein family, present in cyanobacteria, red algae and cryptomonads. Like all phycobilliprotein, phycoerythrin is composed of a protein part, organised in a hexameric structure of alpha and beta chains, covalently binding chromophores called phycobilins. In the phycoerythrin family, the phycobilins are: phycoerythrobilin, the typical phycoerythrin acceptor chromophore, and sometimes phycourobilin (marine organisms). Phycoerythrins are the phycobilliprotein which bind the highest number of phycobilins (up to six per alpha-beta subunit dimer). Subunit structure: (αβ)6γ. RPE purified from Poryhyra tenera; Absorption Maximum: 565 nm± 2 nm (2 smaller peaks are observed at 490 and 545 nm. Emission Maximum: 580 nm. Purity: Absorbance ratio: 565/280 >5.0. Absorbance: Absorbance 1% 565 nm=82.
10 mM phosphate, 150 mM NaCl buffer with 0.05% sodium azide.
Store as concentrated solution. Centrifuge briefly prior to opening vial. Store at 4º C.
1 mg/ml (Please refer to the vial label for the specific concentration.)
For In vitro laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.