Address: 45-1 Ramsey Road, Shirley, NY 11967, USA    USA: 1-631-559-9269  1-631-448-7888   Fax: 1-631-938-8127  Europe: 44-207-097-1828   Email:
Home > Products > Assay Kits > Signaling Kits > p38 Kinase (Human) Assay/Inhibitor Screening Assay Kit

p38 Kinase (Human) Assay/Inhibitor Screening Assay Kit

"Kinase" Related Products.
Product Overview:
p38 Kinase (Human) Assay/Inhibitor Screening Assay Kit is a single-site, non-quantitative immunoassay for p38 activity. Plates are pre-coated with a substrate corresponding to recombinant ATF2, which contains threonine residues that can be efficiently phosphorylated by p38. The detector antibody specifically detects only the phosphorylated form of threonine residue on ATF2.
So far, three distinct MAPK pathways have been described in mammalian cells: the extracellular signal-regulated kinases (ERKs) pathway, the c-Jun amino terminal kinase (JNK) pathway and the p38 MAPK pathway. In general, the ERKs are activated by mitogenic and proliferative stimuli, whereas the JNKs and p38 MAPKs respond to environmental stress, including ultraviolet light, heat, osmotic shock and inflammatory cytokines. Five homologues/isoforms of p38 MAPK have been identified: p38α, p38β, p38γ, p38δ and p38-2. The p38 MAPKs are activated by phosphorylation at the Thr-Gly-Tyr motif by the upstream kinases including MKK3 and 6. These upstream kinases have preferential effects on different p38 isoforms. Of these, p38α is the best characterized and perhaps the most physiologically relevant kinase involved in inflammatory responses. The p38αMAPK pathway is crucial to inflammatory cytokine production and signaling. Several p38 MAPK inhibitors have been shown to block the production of interleukin-1, tumour-necrosis factor and other cytokines. The inhibition of cytokine production seems to result from combined effects at the level of transcription and translation.
1) Screening inhibitors or activators of p38.2) Detecting the effects of pharmacological agents on p38 activity.
Target Species:
For research use only (RUO)
Upon receipt, store all other components at 4°C.Do not expose reagents to excessive light
Kit Components:
Microplate: One microplate supplied ready to use, with 96 wells (12 strips of 8-wells) in a foil, zip-lock bag with a desiccant pack. Wells are coated with recombinant ATF2 as p38 substrate.10X Wash Buffer: One 100 mL bottle of 10X buffer containing 2%Tween -20.Kinase Buffer: One bottle containing 20 mL of 1X buffer; used for Kinase Reaction Buffer and sample dilution.20X ATP: Lyophilized ATP Na2 salt. Reconstitute contents of vial with 0.8 mL of H2O. Mix gently until dissolved. Final concentration of ATP should be 2.5 mM ATP. The ATP solution can be stored in small aliquots (e.g. 100 µL) at -20°C. The 2.5 mM ATP stock solution must be diluted to 125 µM in Kinase Reaction Buffer at the time of the assay.Anti-Phospho-ATF2 Thr71 Polyclonal Antibody (PPT-09): One vial containing 12 mL of anti-phospho-ATF2 Thr71 polyclonal antibody (PPT-08). Ready to use.HRP conjugated Anti-rabbit IgG: One vial containing 12 mL of HRP (horseradish peroxidase) conjugated anti-rabbit IgG. Ready to use.Substrate Reagent: 20 mL of the chromogenic substrate, tetra-methylbenzidine (TMB). Ready to use.Stop Solution: One bottle supplied ready to use, containing 20 mL of 1 N H2SO4.

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Optional requirements on this protein +Expand
C-fusion   N-fusion  Non-tagged
His   GST  Fc  Others
<1.0 eu/μg   <0.1 eu/μg  <0.01 eu/μg  Not required
Monomer Isolation   Dimer Isolation   Not required
>80% by SDS-PAGE   >90% by SDS-PAGE  >95% by SDS-PAGE  Others
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45-1 Ramsey Road, Shirley, NY 11967, USA
USA: 1-631-559-9269  1-631-448-7888
Europe: 44-207-097-1828
FAX: 1-631-938-8127

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