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Figure 1. Treatment of MCF7 cells with IGF-1 stimulates phosphorylation of Akt at Ser473 but does not affect the level of total Akt1. The relationship between lysate protein concentration from untreated and IGF-1-treated MCF7 cells and the absorbance at 450 nm using the FastScan™ Total Akt1 ELISA Kit #15942 is shown in the upper figure. The corresponding western blots using Akt1 antibody (left panel) and phospho-Akt (Ser473) antibody (right panel) are shown in the lower figure. After serum starvation, MCF7 cells were treated with 100 ng/ml IGF-1 #8917 for 5 minutes at 37°C and then lysed.Learn more about how we get our images
|Product Includes||Volume (with Count)||Solution Color|
|FastScan™ ELISA Microwell Strip Plate, 96 Well 53257||1 x 96 tests|
|Akt1 Mouse Capture mAb||1 x 1 ea||Green (Lyophilized)|
|Akt Rabbit HRP-linked mAb||1 x 1 ea||Red (Lyophilized)|
|FastScan™ ELISA Capture Antibody Diluent||1 x 3 ml||Green|
|FastScan™ ELISA HRP Antibody Diluent||1 x 3 ml|
|TMB Substrate 7004||1 x 11 ml|
|STOP Solution 7002||1 x 11 ml|
|Sealing Tape||1 x 1 ea|
|ELISA Wash Buffer (20X) 9801||1 x 25 ml|
|FastScan™ ELISA Cell Extraction Buffer (5X) 69905||1 x 10 ml|
|FastScan™ ELISA Cell Extraction Enhancer Solution (50X) 25243||1 x 1 ml|
|FastScan™ ELISA Kit #15942 Positive Control||2 x 1 ea|
NOTE: Prepare solutions with deionized/purified water or equivalent.
Prepare only as much reagent as needed on the day of the experiment.
*IMPORTANT: The provided FastScan™ ELISA Cell Extraction Enhancer Solution (50X) may precipitate when stored at 4°C. To dissolve, warm briefly at 37°C and mix gently. The FastScan™ ELISA Cell Extraction Enhancer Solution (50X) can be stored at room temperature to avoid precipitation.
NOTE: The 1X Cell Extraction Buffer contains phosphatase inhibitors. Protease inhibitors should be added to the 1X Cell Extraction Buffer immediately prior to lysing cells. Additional phosphatase inhibitors can also be added (e.g. Protease/Phosphatase Inhibitor Cocktail (100X) #5872, not supplied).
For adherent cells
For suspension cells
NOTE: Equilibrate all materials and prepared reagents to room temperature prior to running the assay.
*NOTE: Certain FastScan™ ELISA Kits may require additional washes at this step. Any requirements for additional washes will be specifically noted in the product “Description” of the kit’s datasheet.
NOTE: Initial color of positive reaction is blue, which changes to yellow upon addition of STOP Solution.
posted May 2018
revised November 2018
The FastScan™ Total Akt1 ELISA Kit is a sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of Akt1. To perform the assay, sample is incubated with a capture antibody conjugated with a proprietary tag and a second detection antibody linked to HRP, forming a sandwich with Akt1 in solution. This entire complex is immobilized to the plate via an anti-tag antibody. The wells are then washed to remove unbound material. TMB is then added. The magnitude of observed signal is proportional to the quantity of Akt1. Antibodies in kit are custom formulations specific to kit.
The FastScan™ Total Akt1 ELISA Kit detects endogenous levels of Akt1 as shown in Figure 1. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Human, Mouse, Rat, Monkey
Akt, also referred to as PKB or Rac, plays a critical role in controlling survival and apoptosis (1-3). This protein kinase is activated by insulin and various growth and survival factors to function in a wortmannin-sensitive pathway involving PI3 kinase (2,3). Akt is activated by phospholipid binding and activation loop phosphorylation at Thr308 by PDK1 (4) and by phosphorylation within the carboxy terminus at Ser473. The previously elusive PDK2 responsible for phosphorylation of Akt at Ser473 has been identified as mammalian target of rapamycin (mTOR) in a rapamycin-insensitive complex with rictor and Sin1 (5,6). Akt promotes cell survival by inhibiting apoptosis through phosphorylation and inactivation of several targets, including Bad (7), forkhead transcription factors (8), c-Raf (9), and caspase-9. PTEN phosphatase is a major negative regulator of the PI3 kinase/Akt signaling pathway (10). LY294002 is a specific PI3 kinase inhibitor (11). Another essential Akt function is the regulation of glycogen synthesis through phosphorylation and inactivation of GSK-3α and β (12,13). Akt may also play a role in insulin stimulation of glucose transport (12). In addition to its role in survival and glycogen synthesis, Akt is involved in cell cycle regulation by preventing GSK-3β-mediated phosphorylation and degradation of cyclin D1 (14) and by negatively regulating the cyclin dependent kinase inhibitors p27 Kip1 (15) and p21 Waf1/Cip1 (16). Akt also plays a critical role in cell growth by directly phosphorylating mTOR in a rapamycin-sensitive complex containing raptor (17). More importantly, Akt phosphorylates and inactivates tuberin (TSC2), an inhibitor of mTOR within the mTOR-raptor complex (18,19).
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc. FastScan™ ELISA is a trademark of Cell Signaling Technology, Inc. U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom. U.S. Patents 9,086,407, 9,261,500, and 9,476,874, foreign equivalents, and child patents deriving therefrom.
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|15942C||1 Kit (96 assays)||$ 499|