Protein A, Fluorescent Dye Labeled

Recombinant Protein A that has been covalently labeled with a fluorescent dye.
 
The following fluorescence dye labels are available:
AFDye 488
AFDye 555
AFDye 647
IR750
 
NOTE 1: AFDye 488 (similar to FITC), AFDye 555 (similar to Cy3), AFDye 647 (similar to Cy5) are analogs of AlexaFluor® 488, AlexaFluor® 555, and AlexaFluor® 647 dyes, respectively.
NOTE 2: IR750 dye is ithe analog of the IRDye® 750 dye.
 
Protein A is a cell wall component produced by a number of strains of Staphylococcus aureus. It consists of a single polypeptide chain with few or no carbohydrate. Recombinant Protein A is produced in E. coli and in the same manner as native Protein A. The Protein A molecule contains four high-affinity binding sites that can interact with the Fc region from IgG of a number of species. Optimal binding occurs at pH 8.2, but binding is also effective at physiological conditions (pH 7.0 to 7.6).
 
Applications
Luna Nanotech Protein A is provided for research laboratory or bioprocessing purposes only. Not for use in diagnostic or theraputic human or animal applications.
 
Formulation
Lyophilized powder
 
Storage
Store at 4°C if entire vial with lyophilized product will be used within 5 weeks. Store, frozen at -20°C . After reconstitution in distilled water or buffer, aliquot and store at -20°C. Avoid repeated freeze / thaw cycles.