Jnk2 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
JNK2 (c-Jun N-terminal Kinase 2), also known as MAPK9, is a serine/threonine-protein kinase belonging to the MAPK family. It plays critical roles in cellular stress responses, gene expression regulation, and neuronal survival. JNK2 is particularly important in the context of neurodegenerative diseases, where chronic activation contributes to neuronal death. [@weston2007]
Jnk2 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
JNK2 (c-Jun N-terminal Kinase 2), also known as MAPK9, is a serine/threonine-protein kinase belonging to the MAPK family. It plays critical roles in cellular stress responses, gene expression regulation, and neuronal survival. JNK2 is particularly important in the context of neurodegenerative diseases, where chronic activation contributes to neuronal death. [@weston2007]
<div class="infobox infobox-protein"> [@thompson2021]
<table> [@zhang2022]
<tr><th colspan="2" style="background:#e8f4f8; text-align:center; font-size:1.1em;">JNK2 Protein</th></tr> [@bogoyevitch2006]
<tr><td><strong>Protein Name</strong></td><td>Mitogen-Activated Protein Kinase 9</td></tr>
<tr><td><strong>Gene</strong></td><td>[MAPK9](/genes/jnk2)</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[P45985](https://www.uniprot.org/uniprot/P45985)</td></tr>
<tr><td><strong>PDB ID</strong></td><td>1JNK, 2NMP</td></tr>
<tr><td><strong>Molecular Weight</strong></td><td>48 kDa</td></tr>
<tr><td><strong>Subcellular Localization</strong></td><td>Cytoplasm, Nucleus</td></tr>
<tr><td><strong>Protein Family</strong></td><td>MAPK family</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">ALS</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">Alzheimer</a>, <a href="/wiki/fibrosis" style="color:#ef9a9a">Fibrosis</a>, <a href="/wiki/inflammation" style="color:#ef9a9a">Inflammation</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">45 edges</a></td>
</tr>
</table>
</div>
JNK2 contains a kinase domain (residues 1-300) with the characteristic T-X-Y activation loop motif (Thr183-Tyr185). The protein has a C-terminal region involved in substrate binding and nuclear localization. JNK2 shares 83% sequence identity with JNK1 but has distinct tissue expression patterns and substrate specificities.
JNK2 is activated by various cellular stresses including:
JNK2/3 are chronically activated in Alzheimer's disease brains. Key mechanisms include:
JNK activation mediates dopaminergic neuron death in PD:
JNK2 participates in motor neuron degeneration through:
Several JNK inhibitors are in development:
Jnk2 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Jnk2 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.