The Transcend™ Non-Radioactive Translation Detection Systems allow non-radioactive detection of proteins synthesized in vitro. Using these systems, biotinylated lysine residues are incorporated nascent proteins during translation, eliminating the need for labeling with [35S]methionine other radioactive amino acids. This biotinylated lysine is added to the translation reaction as a precharged ε-labeled biotinylated lysine-tRNA complex (Transcend™ tRNA) rather than a free amino acid. After SDS-PAGE electroblotting, the biotinylated proteins can be visualized by binding either Streptavidin-Alkaline Phosphatase (Streptavidin-AP) Streptavidin-Horseradish Peroxidase (Streptavidin-HRP), followed either by colorimetric chemiluminescent detection. Typically, these methods can detect 0.5–5ng of protein within 3–4 hours after gel electrophoresis. This sensitivity is equivalent to that achieved with [35S]methionine incorporation autoradiographic detection 6–12 hours after gel electrophoresis. 特点 - 优点
应用For more information, see the Protocols & Applications Guide. |
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