Biotinylated Natural SDS-PAGE Standards have been discontinued. Precision Plus Protein™ WesternC™ Standards are the recommended replacement products. These prestained, Strep-tagged recombinant protein standards enable both fluorescent visualization on gels and colorimetric or chemiluminescent western blot detection with StrepTactin-AP or StrepTactin-HRP Conjugate.
Recombinant protein standards offer reproducible migration patterns and exceptional lot-to-lot molecular weight consistency, and are ideal for western blotting. See the Protein Ladders and Standards page to select the best protein standard for your application.