p38 MAPK

p38 kinases are a group of mitogen-activated protein kinases (MAPKs). Like JNK/c-Jun, the p38 kinases are responsive to stresses such as osmotic shock and cytokine stimulation; consequently they are also classified as stress-activated protein kinases (SAPKs).

Literature (1)
Pathways (1)
Gene Data

p38 MAPK Inhibitors

Cat. No. Product Name / Activity
6712 A 77-01
p38 MAPK inhibitor; also potent TGF-βRI inhibitor
4753 AL 8697
Potent and selective p38α inhibitor
3920 AMG 548
Potent and selective p38α inhibitor
5989 BIRB 796
High affinity and selective p38 kinase inhibitor
2186 CMPD-1
Selective inhibitor of p38α-mediated MK2a phosphorylation; also tubulin polymerization inhibitor
5095 DBM 1285 dihydrochloride
p38 MAPK inhibitor; anti-inflammatory
2908 EO 1428
Selective inhibitor of p38α and p38β2
5866 PH 797804
Potent and selective p38α/β inhibitor
2999 RWJ 67657
Potent, selective p38α and p38β inhibitor
1264 SB 202190
Potent, selective inhibitor of p38 MAPK
1202 SB 203580
Selective inhibitor of p38 MAPK
1402 SB 203580 hydrochloride
Selective inhibitor of p38 MAPK; water-soluble
1962 SB 239063
Potent, selective p38 MAPK inhibitor; orally active
5040 SB 706504
p38 MAPK inhibitor
3528 SCIO 469 hydrochloride
Selective p38 MAPK inhibitor
4254 TAK 715
Potent p38 MAPK inhibitor; anti-inflammatory
3915 VX 745
Potent and selective p38α inhibitor


Cat. No. Product Name / Activity
7177 NR 7h
Potent and selective p38α and p38β Degrader; active in vivo
7268 SJFα
Potent and selective p38α Degrader
7267 SJFδ
Potent and selective p38δ Degrader

p38 kinases are a group of mitogen-activated protein kinases (MAPKs). Like JNK/c-Jun, the p38 kinases are responsive to stress stimuli such as osmotic shock and cytokine stimulation; they are also classified as stress-activated protein kinases (SAPKs). p38 also responds to insulin and growth factor stimulation and is often activated during normal immune and inflammatory responses. The active form of p38 phosphorylates specific cellular targets and also regulates gene expression via activation of specific transcription factors.

There are four isoforms of p38: α-, β-, γ- and δ. p38α and β are ubiquitously expressed, while the expression of p38γ and p38δ varies between tissue types. Activation of p38α is dependent on both stimulus and cell type; however, all isoforms of p38 are activated by MAPKKs - in particular, MKK3 and MKK6. Downstream targets of p38α and β include protein kinases such as MAPKAPK2 (MK2) and MNK1, and a range of transcription factors.

p38 has been linked to numerous cellular processes, including inflammation, apoptosis, and the cell cycle. In recent years, p38 has been isolated as a major therapeutic target for the treatment of rheumatoid arthritis.

External sources of pharmacological information for p38 MAPK :

    Literature for p38 MAPK

    Tocris offers the following scientific literature for p38 MAPK to showcase our products. We invite you to request* your copy today!

    *Please note that Tocris will only send literature to established scientific business / institute addresses.

    MAPK Signaling Scientific Review

    MAPK Signaling Scientific Review

    MAP kinase signaling is integral to the regulation of numerous cellular processes such as proliferation and differentiation, and as a result is an important focus of cancer and immunology research. Updated for 2016, this review discusses the regulation of the MAPK pathway and properties of MAPK cascades. Compounds available from Tocris are listed.

    Pathways for p38 MAPK

    MAPK Signaling Pathway

    MAPK Signaling Pathway

    The mitogen-activated protein kinase pathway evokes an intracellular signaling cascade in response to extracellular stimuli such as heat and stress. It can influence cell division, metabolism and survival.

    p38 MAPK Gene Data

    Gene Species Gene Symbol Gene Accession No. Protein Accession No.
    p38α Human MAPK14 NM_001315 Q16539
    Mouse Mapk14 NM_011951 P47811
    Rat Mapk14 NM_031020 P70618
    p38β Human MAPK11 NM_002751 Q15759
    Mouse Mapk11 NM_011161 Q9WUI1
    p38δ Human MAPK13 NM_002754 O15264
    Mouse Mapk13 NM_011950 Q9Z1B7
    Rat Mapk13 NM_019231 Q32Q45
    p38γ Human MAPK12 NM_002969 P53778
    Mouse Mapk12 NM_013871 O08911
    Rat Mapk12 NM_021746 Q63538