| MAPK11 (p38β) | |
|---|---|
| Gene | MAPK11 |
| UniProt | [Q16643](https://www.uniprot.org/uniprot/Q16643) |
| Protein Name | Mitogen-Activated Protein Kinase 11 |
| PDB Structures | 1PME, 1P38, 2产X2, 3GC8 |
| Molecular Weight | ~41 kDa |
| Subcellular Localization | Cytoplasm, Nucleus |
| Protein Family | MAP kinase family, p38 MAPK group |
| Kinase Type | Serine/Threonine kinase |
MAPK11 Protein is a protein that p38β MAPK participates in cellular stress responses and inflammatory signaling:. This page describes its structure, normal nervous system function, role in neurodegenerative disease, and potential as a therapeutic target.
MAPK11 encodes p38β mitogen-activated protein kinase, a member of the p38 MAP kinase family[1]. Unlike the more widely studied p38α (MAPK14), p38β has distinct expression patterns and physiological functions.
Key structural features include:
The p38β isoform shares 75% sequence identity with p38α but has distinct tissue distribution, with higher expression in brain regions including the hippocampus and basal ganglia[3].
p38β MAPK participates in cellular stress responses and inflammatory signaling:
p38β MAPK has complex, sometimes contradictory roles in neurodegeneration:
p38 MAPK isoforms are targeted by several drug classes:
| Drug Class | Examples | Mechanism | Neurodegeneration Relevance |
|---|---|---|---|
| p38 Inhibitors | SB203580, SB239063, Losmapimod | ATP-competitive inhibition | Anti-inflammatory, neuroprotection |
| Isoform-Selective | BIRB 796 | p38α/β selective | Potential for CNS disorders |
| Upregulators | Exercise, BDNF | Increase p38 activation | Neuroplasticity |
| Downregulators | Antioxidants | Reduce oxidative stress | Anti-inflammatory |
MAPK11 Protein (p38β) is Mitogen-activated protein kinase 11. It plays roles in neuronal function and has been implicated in various neurological conditions.
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