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Our customer service representatives are available 24 hours, Monday through Friday to assist you.Reactivity | Human Mouse |
Tested applications | WB IHC |
Recommended Dilution | WB 1:500 - 1:2000 IHC 1:50 - 1:100 |
Calculated MW | 41kDa |
Observed MW | Refer to Figures |
Immunogen | A synthetic peptide of human MAPK1 |
Storage Buffer | Store at -20℃. Avoid freeze / thaw cycles. Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3. |
Synonym | MAPK1;ERK;ERK2;ERT1;MAPK2;P42MAPK;PRKM1;PRKM2;p38;p40;p41;p41mapk ; |
Immunohistochemistry of paraffin-embedded mouse brain using MAPK1 antibody at dilution of 1:100 (40x lens).
Immunohistochemistry of paraffin-embedded human prostate using MAPK1 antibody at dilution of 1:100 (40x lens).
Immunohistochemistry of paraffin-embedded human stomach using MAPK1 antibody at dilution of 1:100 (40x lens).
Mitogen-activated protein kinases (MAPKs) are a widely conserved family of serine/threonine protein kinases involved in many cellular programs such as cell proliferation, differentiation, motility, and death. The p44/42 MAPK (MAPK1) signaling pathway can be activated in response to a diverse range of extracellular stimuli including mitogens, growth factors, and cytokines (1-3) and is an important target in the diagnosis and treatment of cancer (4). Upon stimulation, a sequential three-part protein kinase cascade is initiated, consisting of a MAP kinase kinase kinase (MAPKKK or MAP3K), a MAP kinase kinase (MAPKK or MAP2K), and a MAP kinase (MAPK). Multiple p44/42 MAP3Ks have been identified, including members of the Raf family, as well as Mos and Tpl2/Cot. MEK1 and MEK2 are the primary MAPKKs in this pathway (5,6). MEK1 and MEK2 activate p44 and p42 through phosphorylation of activation loop residues Thr202/Tyr204 and Thr185/Tyr187, respectively. Several downstream targets of p44/42 have been identified, including p90RSK (7) and the transcription factor Elk-1 (8,9). p44/42 are negatively regulated by a family of dual-specificity (Thr/Tyr) MAPK phosphatases, known as DUSPs or MKPs (10), along with MEK inhibitors such as U0126 and PD98059.
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