Catalytic domain of the Serine/Threonine Kinase, p38delta Mitogen-Activated Protein Kinase. Serine/Threonine Kinases (STKs), p38delta subfamily, catalytic (c) domain. STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The p38delta subfamily is part of a larger superfamily that includes the catalytic domains of other protein STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. p38 kinases are mitogen-activated protein kinases (MAPKs), serving as important mediators of cellular responses to extracellular signals. They are activated by the MAPK kinases MKK3 and MKK6, which in turn are activated by upstream MAPK kinase kinases including TAK1, ASK1, and MLK3, in response to cellular stresses or inflammatory cytokines. Vertebrates contain four isoforms of p38, named alpha, beta, gamma, and delta. p38delta, also called MAPK13, is found in skeletal muscle, heart, lung, testis, pancreas, and small intestine. It regulates microtubule function by phosphorylating Tau. It activates the c-jun promoter and plays a role in G2 cell cycle arrest. It also controls the degration of c-Myb, which is associated with myeloid leukemia and poor prognosis in colorectal cancer. p38delta is the main isoform involved in regulating the differentiation and apoptosis of keratinocytes.
No pairwise interactions are available for this conserved domain.
Total Mutations Found: 317 Total Disease Mutations Found: 66 This domain occurred 203 times on human genes (461 proteins).
If you've navigated here from a protein, hovering over a position on the weblogo will display the corresponding protein position for that domain position.
The histograms below the weblogo indicate mutations found on the domain. Red is for disease (OMIM) and blue is for SNPs.
Functional Features are displayed as orange boxes under the histograms. You can choose which features are displayed in the box below.
Range on the Protein:
Protein ID Protein Position
Domain Position:
Feature Name:
Total Found:
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