Date published: 2026-2-27

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MEK-1/2 Antibody (9G3): sc-81504

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Datasheets
  • MEK-1/2 Antibody (9G3) is a mouse monoclonal IgG2a MEK-1/2 antibody, cited in 52 publications, provided at 50 µg/0.5 ml
  • raised against phosphopeptide corresponding to the activation loop of MEK-1/2 of human origin
  • recommended for detection of the activation loop of MEK-1 and MEK-2 (independent of its phosphorylation status) of mouse, rat, human and canine origin by WB and IP
  • See MEK-1 (H-8): sc-6250 for MEK-1/2 antibody conjugates, including AC, HRP, FITC, PE, Alexa Fluor® 488, 594, 647, 680 and 790.
  • m-IgG Fc BP-HRP and m-IgG2a BP-HRP are the preferred secondary detection reagents for MEK-1/2 Antibody (9G3) for WB applications. These reagents are now offered in bundles with MEK-1/2 Antibody (9G3) (see ordering information below).
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MEK-1/2 Antibody (9G3) is a mouse monoclonal IgG2a antibody that detects MEK-1/2 protein of mouse, rat, human, and canine origin by western blotting (WB) and immunoprecipitation (IP). Anti-MEK-1/2 antibody (9G3) is available as the non-conjugated format. MEK-1 and MEK-2 proteins play a crucial role in the mitogen-activated protein kinase (MAPK) signaling pathway, essential for various cellular processes, including proliferation, differentiation, and survival. MEK-1 and MEK-2 proteins are located in the cytoplasm and activate in response to extracellular signals, leading to phosphorylation of downstream MAP kinases such as ERK. Proper functioning of MEK-1 and MEK-2 remains vital, as dysregulation of this pathway can contribute to various diseases, including cancer. MEK-1 and MEK-2 interact with other proteins in the signaling cascade, such as Raf kinases, further underscoring their importance in cellular signaling networks. Anti-MEK-1/2 antibody (9G3) enables valuable insights into the dynamics of the MAPK pathway and its implications in health and disease.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

MEK-1/2 Antibody (9G3)

sc-81504
50 µg/0.5 ml
$322.00

MEK-1/2 Antibody (9G3): m-IgG Fc BP-HRP Bundle

sc-539619
50 µg Ab; 10 µg BP
$361.00

MEK-1/2 Antibody (9G3): m-IgG2a BP-HRP Bundle

sc-546742
50 µg Ab; 10 µg BP
$361.00

I need to use an antibody to detect the protein in samples of porcine origin. Do you know if this mouse monoclonal antibody will work?

Asked by: jerojero
Please contact our Technical Service Department and we would be happy to perform sequence analysis and review our data to answer any questions you may have about additional species reactivity.
Answered by: Technical Support 2
Date published: 2017-02-17
  • y_2026, m_2, d_26, h_9CST
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Rated 4 out of 5 by from Not very clear blotDetected the bands but the film was quite unclear. Incubated the antibody in 3% v/w milk.
Date published: 2021-03-17
Rated 2 out of 5 by from please use this antibody with caution!I have previously recommended this antibody. I have thought this antibody can equally recognise the phosphor- and non-phosphor-form of MEK-1/2, according to the statement "recommended for detection of the activation loop of MEK-1 and MEK-2 (independent of its phosphorylation status)". However, recently I did a growth factor stimulation experiment. I suddenly realised that MEK-1/2 Antibody (9G3) appears to have a strong preference for the p-MEK-1/2 over non-p-MEK-1/2, but is not totally clean with non-p-MEK-1/2. Thus, it would be problematic to use this antibody, especially when the phosphorylation level is low. So, please use this antibody with caution!
Date published: 2017-10-26
Rated 5 out of 5 by from great for WBThis ab has very good specificity and sensitivity for WB with MEK-1/2 from human, mouse and rat. The epitope is in the activation loop, for sequential WB using a phosphor-MEK-1/2 and this Ab, whether the binding of one ab will interfere with the binding of the other is not unknown.
Date published: 2017-01-30
Rated 5 out of 5 by from Excellent!This antibody works great in western blot analysis of MEK-1/2 expression in serum starved HeLa, Hep G2, HEK293, SH-SY5Y, MDCK, PC-12, CMT 93, Neuro 2A whole cell lysates.
Date published: 2017-01-20
Rated 5 out of 5 by from Published data for IP and WB in MCF7 breastPublished data for IP and WB in MCF7 breast cancer cells. -SCBT Publication Review
Date published: 2015-05-15
Rated 5 out of 5 by from Published data for WB in rat (VSMCs) vascularPublished data for WB in rat (VSMCs) vascular smooth muscle cells. -SCBT Publication Review
Date published: 2015-04-25
Rated 5 out of 5 by from Published data for IP in HEKPublished data for IP in HEK-293 cells. -SCBT Publication Review
Date published: 2015-03-13
Rated 5 out of 5 by from GoodGood, clear band visualized in WB in serum starved HeLa, Hep G2, HEK293, SH-SY5Y, MDCK, PC-12, CMT 93, Neuro 2A whole cell lysates. -SCBT QC
Date published: 2014-03-29
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MEK-1/2 Antibody (9G3) is rated 4.5 out of 5 by 8.
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