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2026-04-25T22:00:40Z
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<p><b>New page</b></p><div>'''MAPK1''' (Mitogen-Activated Protein Kinase 1), also known as ERK2 (Extracellular Signal-Regulated Kinase 2), is a crucial enzyme in the [[MAPK/ERK pathway]], which plays a significant role in various cellular processes including proliferation, differentiation, and survival. This kinase is part of the [[Mitogen-Activated Protein Kinase]] (MAPK) family, a group of serine/threonine-specific protein kinases that respond to extracellular stimuli and regulate various cellular activities.<br />
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== Function ==<br />
MAPK1 is activated by [[MEK1]] and [[MEK2]], which are themselves activated by upstream [[Ras]] proteins. Upon activation, MAPK1 phosphorylates a number of downstream targets, including various transcription factors, leading to changes in gene expression. This pathway is critical for the control of cell cycle progression and has been implicated in the response to growth factors, [[Oncogenes|oncogenic]] signals, and [[Cytokines|cytokines]].<br />
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== Clinical Significance ==<br />
Alterations in the MAPK/ERK pathway, including mutations in MAPK1, have been associated with a variety of human diseases, particularly [[Cancer|cancers]]. Because of its central role in cell proliferation and survival, MAPK1 is considered a potential target for cancer therapy. Inhibitors of MAPK1 and its upstream activators are currently being explored as therapeutic agents in cancer treatment.<br />
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== Research ==<br />
Research on MAPK1 has also highlighted its role in non-cancerous conditions, such as [[Cardiovascular diseases]], [[Neurodegenerative diseases]], and [[Diabetes]]. Understanding the precise mechanisms by which MAPK1 contributes to these diseases is an area of active investigation, with the goal of developing targeted therapies that can modulate this pathway for therapeutic benefit.<br />
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== See Also ==<br />
* [[Protein kinase]]<br />
* [[Signal transduction]]<br />
* [[Cell cycle]]<br />
* [[Apoptosis]]<br />
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== References ==<br />
<references/><br />
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[[Category:Signal transduction]]<br />
[[Category:Protein kinases]]<br />
[[Category:Cell biology]]<br />
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{{Molecular-biology-stub}}</div>
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