Details of Protein

General Information of Protein (ID: PRT01109)
Name MAP kinase p38 (MAPK12)
Synonyms   Click to Show/Hide Synonyms of This Protein
MAP kinase 12; MAPK 12; Extracellular signal-regulated kinase 6; ERK-6; Mitogen-activated protein kinase p38 gamma; MAP kinase p38 gamma; Stress-activated protein kinase 3; Mapk12; Sapk3
Gene Name Mapk12 Gene ID
60352
UniProt ID
Q63538
Family Transferases (EC 2)
EC Number   EC: 2.7.11.24  (Click to Show/Hide the Complete EC Tree)
Transferase
Kinase
Protein-serine/threonine kinases
EC: 2.7.11.24
  Click to Show/Hide the Molecular/Functional Data (Sequence/Structure/Function) of This Protein
Sequence
MSSPPPARKGFYRQEVTKTAWEVRAVYQDLQPVGSGAYGAVCSAVDSRTGNKVAIKKLYR
PFQSELFAKRAYRELRLLKHMRHENVIGLLDVFTPDETLDDFTDFYLVMPFMGTDLGKLM
KHETLSEDRIQFLVYQMLKGLKYIHAAGVIHRDLKPGNLAVNEDCELKILDFGLARQADS
EMTGYVVTRWYRAPEVILNWMRYTQTVDIWSVGCIMAEMITGKILFKGNDHLDQLKEIMK
VTGTPPPEFVQKLQSAEAKNYMEGLPELEKKDFASVLTNASPQAVNLLEKMLVLDAEQRV
TAAEALAHPYFESLRDTEDEPKAQKYDDSFDDVDRTLEEWKRVTYKEVLSFKPPRQLGAR
VPKETAL
Function Serine/threonine kinase which acts as an essential component of the MAP kinase signal transduction pathway. MAPK12 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 such as ELK1 and ATF2. Accordingly, p38 MAPKs phosphorylate a broad range of proteins and it has been estimated that they may have approximately 200 to 300 substrates each. Some of the targets are downstream kinases such as MAPKAPK2, which are activated through phosphorylation and further phosphorylate additional targets. Plays a role in myoblast differentiation and also in the down-regulation of cyclin D1 in response to hypoxia in adrenal cells suggesting MAPK12 may inhibit cell proliferation while promoting differentiation. Phosphorylates DLG1. Following osmotic shock, MAPK12 in the cell nucleus increases its association with nuclear DLG1, thereby causing dissociation of DLG1-SFPQ complexes. This function is independent of its catalytic activity and could affect mRNA processing and/or gene transcription to aid cell adaptation to osmolarity changes in the environment. Regulates UV-induced checkpoint signaling and repair of UV-induced DNA damage and G2 arrest after gamma-radiation exposure. MAPK12 is involved in the regulation of SLC2A1 expression and basal glucose uptake in L6 myotubes; and negatively regulates SLC2A4 expression and contraction-mediated glucose uptake in adult skeletal muscle. C-Jun (JUN) phosphorylation is stimulated by MAPK14 and inhibited by MAPK12, leading to a distinct AP-1 regulation. MAPK12 is required for the normal kinetochore localization of PLK1, prevents chromosomal instability and supports mitotic cell viability. MAPK12-signaling is also positively regulating the expansion of transient amplifying myogenic precursor cells during muscle growth and regeneration.
Regulatory Network
Full List of Metabolite(s) Regulating This Protein
      Organic acids and derivatives
            Glutamine Click to Show/Hide the Full List of Regulating Pair(s):   1 Pair(s)
               Detailed Information Metabo  Info click to show the details of this metabolite
               Regulating Pair Experim Info click to show the details of experiment for validating this pair [1]
                      Introduced Variation Glutamine addition (6 hours)
                      Induced Change MAPK12 protein phosphorylation levels: decrease
                      Summary Introduced Variation         Induced Change 
                      Disease Status Sepsis [ICD-11: 1G40]
                      Details It is reported that glutamine addition causes the decrease of MAPK12 protein phosphorylation compared with control group.
References
1 GLUTAMINE PREVENTS ACTIVATION OF NF-kappaB AND STRESS KINASE PATHWAYS, ATTENUATES INFLAMMATORY CYTOKINE RELEASE, AND PREVENTS ACUTE RESPIRATORY DISTRESS SYNDROME (ARDS) FOLLOWING SEPSIS. Shock. 2005 Dec;24(6):583-9.

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