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HTRF Human & 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 and disposal requirements under European REACH regulations (EC 1907/2006).

Feature Specification
Application Cell Signaling
Sample Volume 16 µL

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 and disposal requirements under European REACH regulations (EC 1907/2006).

Product Variants
Unit Size: 500 Assay Points
Part #:
64TORPEG
List Price
USD 2,147.00
Unit Size: 10,000 Assay Points
Part #:
64TORPEH
List Price
USD 12,490.00

Overview

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.

Specifications

Application
Cell Signaling
Brand
HTRF
Detection Modality
HTRF
Lysis Buffer Compatibility
Lysis Buffer 1
Lysis Buffer 3
Lysis Buffer 4
Lysis Buffer 5
Molecular Modification
Phosphorylation
Product Group
Kit
Sample Volume
16 µL
Shipping Conditions
Shipped in Dry Ice
Target Class
Phosphoproteins
Target Species
Human
Mouse
Technology
TR-FRET
Therapeutic Area
Cardiovascular
Metabolism/Diabetes
NASH/Fibrosis
Neuroscience
Oncology & Inflammation
Unit Size
500 Assay Points

Video gallery

How it works

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

 

Assay validation

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

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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