CST spho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mA
CST spho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb
Applications Key: W=Western Blotting IP=Immunoprecipitation IF-IC=Immunofluorescence (Immunocytochemistry) F=Flow Cytometry
Reactivity Key: H=Human M=Mouse R=Rat Mk=Monkey Z=Zebrafish Sc=S. cerevisiae
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
9216:
Flow, Immunofluorescence, Immunoprecipitation, Western Blotting
Phospho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb detects p38 MAPK only when activated by dual phosphorylation at Thr180 and Tyr182. This antibody does not significantly cross-react with the corresponding phosphorylated forms of either p44/42 MAPK (Erk1/2) or SAPK/JNK. It does not detect nonphosphorylated p38 MAPK.
Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Thr180/Tyr182 of human p38 MAPK.
Western blot analysis of extracts from HeLa and NIH/3T3 cells, untreated or treated as indicated, using Phospho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb (upper) or p38 MAPK Antibody #9212 (lower).
Flow cytometric analysis of Jurkat cells, untreated (green) or anisomycin-treated (blue), using Phospho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb compared to a nonspecific negative control antibody (red).
Confocal immunofluorescent analysis of HeLa cells either untreated (left) or anisomycin treated (right) labeled with Phospho-p38 MAP Kinase (Thr180/Tyr182) (28B10) Mouse mAb (green). Actin filaments have been labeled with Alexa Fluor Phalloidin 555 (red).
CST spho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb
p38 MAP kinase (MAPK), also called RK (1) or CSBP (2), is the mammalian orthologue of the yeast HOG kinase that participates in a signaling cascade controlling cellular responses to cytokines and stress (1-4). Four isoforms of p38 MAPK, p38α, β, γ (also known as Erk6 or SAPK3), and δ (also known as SAPK4) have been identified. Similar to the SAPK/JNK pathway, p38 MAPK is activated by a variety of cellular stresses including osmotic shock, inflammatory cytokines, lipopolysaccharide (LPS), UV light, and growth factors (1-5). MKK3, MKK6, and SEK activate p38 MAPK by phosphorylation at Thr180 and Tyr182. Activated p38 MAPK has been shown to phosphorylate and activate MAPKAP kinase 2 (3) and to phosphorylate the transcription factors ATF-2 (5), Max (6), and MEF2 (5-8).SB203580 (4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)-imidazole) is a selective inhibitor of p38 MAPK. This compound inhibits the activation of MAPKAPK-2 by p38 MAPK and subsequent phosphorylation of HSP27 (9). SB203580 inhibits p38 MAPK catalytic activity by binding to the ATP-binding pocket, but does not inhibit phosphorylation of p38 MAPK by upstream kinases (10).
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For Research Use Only. Not For Use In Diagnostic Procedures.
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