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HTRF Human and Mouse Phospho-mTOR (Ser2448) Detection Kit, 500 Assay Points

The phospho-mTOR (Ser2448) kit enables the cell-based quantitative detection of phosphorylated mTOR.

For research use only. Not for use in diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption & disposal requirements under European REACH regulations (EC 1907/2006).
Part Number: 64TORPEG
Unit Size: 500 Assay Points
Part Number: 64TORPEH
Unit Size: 10,000 Assay Points
  • The Phospho-mTOR (Ser2448) cellular assay kit is ideal for measuring phosphorylated mTOR directly in cells. Using a streamlined protocol, amenable to low-volume formats, this kit can be used from basic research to High Throughput drug screening.

  • Assay Points
    Assay Target Type
    Assay Technology
    Therapeutic Area
    Oncology & Inflammation
    Unit Size
    500 Assay Points
  • Phospho-mTor (Ser2448) assay principle

    The Phospho-mTor (Ser2448) assay measures mTor when phosphorylated at Ser2448. Contrary to Western Blot, the assay is entirely plate-based and does not require gels, electrophoresis or transfer. The Phospho-mTor (Ser2448) assay uses 2 labeled antibodies: one with a donor fluorophore, the other one with an acceptor. The first antibody is selected for its specific binding to the phosphorylated motif on the protein, the second for its ability to recognize the protein independent of its phosphorylation state. Protein phosphorylation enables an immune-complex formation involving both labeled antibodies and which brings the donor fluorophore into close proximity to the acceptor, thereby generating a FRET signal. Its intensity is directly proportional to the concentration of phosphorylated protein present in the sample, and provides a means of assessing the proteins phosphorylation state under a no-wash assay format.

    Phospho assay principle
    Phospho-mTor (Ser2448) 2-plate assay protocol

    The 2 plate protocol involves culturing cells in a 96-well plate before lysis then transferring lysates to a 384-well low volume detection plate before adding phospho-mTor (Ser2448) HTRF detection reagents. This protocol enables the cells' viability and confluence to be monitored.

    Phospho mtor plate-assay-protocol
    Phospho-mTor (Ser2448) 1-plate assay protocol

    Detection of Phosphorylated mTor (Ser2448) with HTRF reagents can be performed in a single plate used for culturing, stimulation and lysis. No washing steps are required. This HTS designed protocol enables miniaturization while maintaining robust HTRF quality.

    Assay protocol


  • HTRF assay compared to WB using phospho-mTOR cellular assay

    Hek293 cells were grown in a T175 flask 37°C, 5% Co2, 2 days.After elimination of cell culture medium, 3 mL of supplemented lysis buffer were added and incubated for 30 min.Soluble supernatants were collected after 10 min centrifuging. Equal amounts of lysates were used for a side by side comparison of WB and HTRF. HTRF assay shows the same level of sensitivity as Western Blot: 1560 cells for the two technologies.

    Assay validation mtor phospho
    Insulin dose-response on NIH 3T3 cells

    Murine NIH 3T3 cells (100,000 cells/well) were stimulated for 30 minutess at 37°C with various concentrations of forskolin. After a 30 minutes lysis incubation time, phosphorylated mTOR was measured using the two-plate assay protocol.

    Assay validation phospho
    Inhibition effect of Rapamycin on basal level of Jurkat cells

    Jurkat cells (100,000 cells/well) were incubated for 30 min at 37°C with various concentrations of inhibitor. After a 30 minutes lysis incubation time, inhibition of the basal level of phosphorylated mTOR was measured using the one-plate assay protocol.

    Assay validation mtor phospho


  • Simplified Pathway for Phospho-mTor (Ser2448) assay kit

    The mammalian target of rapamycin (mTOR) is a Ser/Thr protein kinase that functions as an ATP and amino acid sensor and plays a key role in cell growth and homeostasis. As mTOR may be abnormally regulated in tumors, it is currrently under investigation as a potential target for anti-cancer therapy. mTOR is itself phosphorylated at Ser2448 via the PI3 kinase/Akt signaling pathway, and autophosphorylated at Ser2481.

    Mtor torpeg torpeh



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