Mouse Monoclonal p38beta antibody [4H6H6] (STJ98300)


Reactivity: Human
Applications: WB, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Mouse Monoclonal p38beta antibody [4H6H6] (STJ98300)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, ELISA

Recommended dilution: WB 1:500-1:2000; ELISA 1:10000

Recommended protocols: check protocols

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Alternative names:

Check alternative names for the antibody


MAPK11 antibody, PRKM11 antibody, SAPK2 antibody, SAPK2B antibody,|Human p38Beta MAP kinase mRNA complete cds antibody|MAP kinase 11 antibody|MAP kinase p38 beta antibody|MAPK 11 antibody|Mapk11 antibody|Mitogen activated protein kinase 11 antibody|Mitogen activated protein kinase p38 2 antibody|Mitogen activated protein kinase p38 beta antibody|Mitogen-activated protein kinase 11 antibody|Mitogen-activated protein kinase p38 beta antibody|MK11_HUMAN antibody|p38 2 antibody|p38-2 antibody|p38B antibody|p38Beta antibody|P38BETA2 antibody|PRKM11 antibody|Protein kinase mitogen activated 11 antibody|SAPK2 antibody|SAPK2B antibody|Stress activated protein kinase 2 antibody|Stress activated protein kinase 2b antibody|Stress-activated protein kinase 2 antibody|Anti-MAPK11 antibody [E13-Q] – C-terminal (ab183208)
SCBT cat No: sc-101427|sc-33689|sc-6176|sc-6187|sc-390984|sc-15918|



p38beta Monoclonal Antibody

Catalogue No.





p38beta Monoclonal Antibody detects endogenous levels of p38beta protein.


Purified recombinant fragment of p38beta (aa251-363) expressed in E Coli





Recommended dilution

WB 1:500-1:2000; ELISA 1:10000








p38beta Antibody was tube-contained. Ascitic fluid containing 0.03% sodium azide.


1 mg/ml


p38beta Antibody was purified using affinity purification.


-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Mitogen-activated protein kinase 11 antibody, MAP kinase 11 antibody, MAPK 11 antibody, Mitogen-activated protein kinase p38 beta antibody, MAP kinase p38 beta antibody, p38b antibody, Stress-activated protein kinase 2b antibody, SAPK2b antibody, p38-2 antibody

Database links

Human UniProt/Swiss-Prot:Q15759;Mouse UniPort/Swiss-Prot: Q9WUI1;Rat UniProt/Swiss-Port: A0A0G2KB06;Human Entrez Gene: 5600;Mouse Entrez Gene: 19094;Rat Entrez Gene: Rn.45869

Protein names

Mitogen-activated protein kinase 11 , MAP kinase 11 , MAPK 11 , Mitogen-activated protein kinase p38 beta , MAP kinase p38 beta , p38b , Stress-activated protein kinase 2b , SAPK2b , p38-2

Protein function

Serine/threonine kinase which acts as an essential component of the MAP kinase signal transduction pathway. MAPK11 is one of the four p38 MAPKs which play an important role in the cascades of cellular responses evoked by extracellular stimuli such as proinflammatory cytokines or physical stress leading to direct activation of transcription factors. Accordingly, p38 MAPKs phosphorylate a broad range of proteins and it has been estimated that they may have approximately 200 to 300 substrates each. MAPK11 functions are mostly redundant with those of MAPK14. Some of the targets are downstream kinases which are activated through phosphorylation and further phosphorylate additional targets. RPS6KA5/MSK1 and RPS6KA4/MSK2 can directly phosphorylate and activate transcription factors such as CREB1, ATF1, the NF-kappa-B isoform RELA/NFKB3, STAT1 and STAT3, but can also phosphorylate histone H3 and the nucleosomal protein HMGN1. RPS6KA5/MSK1 and RPS6KA4/MSK2 play important roles in the rapid induction of immediate-early genes in response to stress or mitogenic stimuli, either by inducing chromatin remodeling or by recruiting the transcription machinery. On the other hand, two other kinase targets, MAPKAPK2/MK2 and MAPKAPK3/MK3, participate in the control of gene expression mostly at the post-transcriptional level, by phosphorylating ZFP36 (tristetraprolin) and ELAVL1, and by regulating EEF2K, which is important for the elongation of mRNA during translation. MKNK1/MNK1 and MKNK2/MNK2, two other kinases activated by p38 MAPKs, regulate protein synthesis by phosphorylating the initiation factor EIF4E2. In the cytoplasm, the p38 MAPK pathway is an important regulator of protein turnover. For example, CFLAR is an inhibitor of TNF-induced apoptosis whose proteasome-mediated degradation is regulated by p38 MAPK phosphorylation. Ectodomain shedding of transmembrane proteins is regulated by p38 MAPKs as well. In response to inflammatory stimuli, p38 MAPKs phosphorylate the membrane-associated metalloprotease ADAM17. Such phosphorylation is required for ADAM17-mediated ectodomain shedding of TGF-alpha family ligands, which results in the activation of EGFR signaling and cell proliferation. Additional examples of p38 MAPK substrates are the FGFR1. FGFR1 can be translocated from the extracellular space into the cytosol and nucleus of target cells, and regulates processes such as rRNA synthesis and cell growth. FGFR1 translocation requires p38 MAPK activation. In the nucleus, many transcription factors are phosphorylated and activated by p38 MAPKs in response to different stimuli. Classical examples include ATF1, ATF2, ATF6, ELK1, PTPRH, DDIT3, TP53/p53 and MEF2C and MEF2A. The p38 MAPKs are emerging as important modulators of gene expression by regulating chromatin modifiers and remodelers. The promoters of several genes involved in the inflammatory response, such as IL6, IL8 and IL12B, display a p38 MAPK-dependent enrichment of histone H3 phosphorylation on ‘Ser-10’ (H3S10ph) in LPS-stimulated myeloid cells. This phosphorylation enhances the accessibility of the cryptic NF-kappa-B-binding sites marking promoters for increased NF-kappa-B recruitment. / ATP + a protein = ADP + a phosphoprotein. / Mg2+ / Activated by phosphorylation on threonine and tyrosine by MAP2K3/MKK3, MAP2K4/MKK4 and MAP2K6/MKK6. MAP2K3/MKK3 and MAP2K6/MKK6 are both essential for the activation of MAPK11 induced by environmental stress. HDAC3 interacts directly and selectively with MAPK11 to repress ATF2 transcriptional activity, and regulate TNF gene expression in LPS-stimulated cells. Inhibited by SB203580 and pyridinyl-imidazole related compounds.

Protein tissue specificity

Highest levels in the brain and heart. Also expressed in the placenta, lung, liver, skeletal muscle, kidney and pancreas.

Protein sequence and domain

The TXY motif contains the threonine and tyrosine residues whose phosphorylation activates the MAP kinases. / Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. MAP kinase subfamily. / Contains 1 protein kinase domain.

Protein post-translational modifications

Dually phosphorylated on Thr-180 and Tyr-182 by MAP2K3/MKK3, MAP2K4/MKK4 and MAP2K6/MKK6, which activates the enzyme.

Protein cellular localization

Cytoplasm / Nucleus

Research area

All research areas>Kinases and Phosphatases>p38 beta
(View all antibody categories related to Kinases and Phosphatases)


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St John’s Laboratory Ltd.

Product type

Primary antibody


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