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C-PC
C-Phycocyanin; CAS 11016-15-2
C-Phycocyanin (C-PC) occurs as the major phycobiliprotein in many cyanobacteria and as a secondary phycobiliprotein in some red algae. The pigment has a single visible absorption maximum between 615 and 620 nm and a fluorescence emission maximum at ~650 nm. Its molecular weight is between 70,000 and 110,000 daltons. The pigment is composed of two subunits, ? and ?, which occur in equal numbers, but the exact number of ? and ? pairs which make up the molecule may vary among the species. Both ? and ? subunits contain only the PCB chromophore. In addition to absorbing light directly, this intensely blue pigment accepts quanta from phycoerythrin by fluorescence energy transfer in organisms in which PE is present. The red fluorescence of C-PC is transferred to allophycocyanin.
<p>Phycocyanin is a&nbsp;protein&nbsp;from the light-harvesting&nbsp;phycobiliprotein&nbsp;family, along with&nbsp;allophycocyanin,&nbsp;phycoerythrin&nbsp;and&nbsp;phycoerythrocyanin. It is an&nbsp;accessory pigment&nbsp;to&nbsp;chlorophyll. All phycobiliproteins are water-soluble and therefore cannot exist within the membrane like&nbsp;carotenoids, but aggregate forming clusters that adhere to the membrane called&nbsp;phycobilisomes. Allophycocyanin absorbs and emits red light, and is readily found in&nbsp;Cyanobacteria, and&nbsp;red algae. Phycobilin pigments have excellent fluorescent properties that are extremely useful for flow cytometry-based immunoassays.</p>
<p>Phycocyanin is a&nbsp;protein&nbsp;from the light-harvesting&nbsp;phycobiliprotein&nbsp;family, along with&nbsp;allophycocyanin,&nbsp;phycoerythrin&nbsp;and&nbsp;phycoerythrocyanin. It is an&nbsp;accessory pigment&nbsp;to&nbsp;chlorophyll. All phycobiliproteins are water-soluble and therefore cannot exist within the membrane like&nbsp;carotenoids, but aggregate forming clusters that adhere to the membrane called&nbsp;phycobilisomes. Allophycocyanin absorbs and emits red light, and is readily found in&nbsp;Cyanobacteria, and&nbsp;red algae. Phycobilin pigments have excellent fluorescent properties that are extremely useful for flow cytometry-based immunoassays.</p>
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Protocol
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SDS
COA
CatalogSize
Price
Quantity
25531 mg
Price
 
Physical properties
Molecular weight~264,000
SolventWater
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageRefrigerated (2-8 °C); Minimize light exposure
UNSPSC12171501
CAS11016-15-2
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Page updated on October 10, 2025