R-PE-Streptavidin (1:2) Conjugate

R-Phycoerythrin (PE) is an extremely bright red-orange fluorescent dye isolated from red algae. R-PE-Streptavidin conjugates are commonly used for detecting biotinylated antibodies and other biotinylated molecules in fluorescence-based assays, such as flow cytometry, microarray assays, and ELISAs. R-PE conjugates often provide 5 to 10 times greater sensitivity in these applications compared to fluorescein-labeled conjugates. The quality of the conjugate and linker significantly affects background levels and assay sensitivity.

Our R-PE-Streptavidin conjugate is designed with a long, flexible linker composed of PEG and ethylene-type segments (29-atom length) to preserve streptavidin’s biotin-binding activity. Each lot of conjugate consists primarily of two streptavidin molecules labeled R-PE (1:2) conjugates, purified by size-exclusion chromatography.

Key Features
• Double-labeled conjugates, purified by size-exclusion chromatography for high purity and performance.
• Retention of biotin binding
• Conjugation verified and quantified by UV and HPLC

Chemical Information
Chemical name: R-PE-Streptavidin (1:2) Conjugate
Chemical formula: N/A
Molecular weight: 344 KDa

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