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AnaSpec C-PC (C-PHYCOCYANIN)
Supplier: AnaSpec AS82003
C-PC (C-Phycocyanin), ; MW ~264,000; (1 mg) 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, a and B , which occur in equal numbers, but the exact number of a and B pairs which make up the molecule may vary among the species. Both a and B subunits contain only the PCB chromophore. In addition to absorbing light directly, this intensely blue pigment accepts quanta from phycoerythrin by fluorescent energy transfer in organisms in which PE is present. The red fluorescence of C-PC is transferred to allophycocyanin (see 82000).a a
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