TAOK2 Protein
Introduction <table class="infobox infobox-protein"> <tr> <th class="infobox-header" colspan="2">TAOK2 Protein</th> </tr> <tr> <td class="label">Gene Symbol </td> <td>TAOK2</td> </tr> <tr> <td class="label">Protein Name </td> <td>Thousand and One Amino Acid Kinase 2</td> </tr> <tr> <td class="label">Alternative Names </td> <td>TAOK2, TAOK2, TAOK-beta</td> </tr> <tr> <td class="label">UniProt ID </td> <td>Q9HAE7</td> </tr> <tr> <td class="label">Molecular Weight </td> <td>~123 kDa</td> </tr> <tr> <td class="label">Protein Family </td> <td>MAP4K family, TAOK subfamily</td> </tr> <tr> <td class="label">Tissue Distribution </td> <td>Brain, high in [cortex](/brain-regions/cortex) and [hippocampus](/brain-regions/hippocampus)</td> </tr> <tr> <td class="label">KG Connections</td> <td><a href="/atlas" style="color:#4fc3f7">2 edges</a></td> </tr> </table>
Taok2 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview ...
TAOK2 Protein
Introduction <table class="infobox infobox-protein"> <tr> <th class="infobox-header" colspan="2">TAOK2 Protein</th> </tr> <tr> <td class="label">Gene Symbol </td> <td>TAOK2</td> </tr> <tr> <td class="label">Protein Name </td> <td>Thousand and One Amino Acid Kinase 2</td> </tr> <tr> <td class="label">Alternative Names </td> <td>TAOK2, TAOK2, TAOK-beta</td> </tr> <tr> <td class="label">UniProt ID </td> <td>Q9HAE7</td> </tr> <tr> <td class="label">Molecular Weight </td> <td>~123 kDa</td> </tr> <tr> <td class="label">Protein Family </td> <td>MAP4K family, TAOK subfamily</td> </tr> <tr> <td class="label">Tissue Distribution </td> <td>Brain, high in [cortex](/brain-regions/cortex) and [hippocampus](/brain-regions/hippocampus)</td> </tr> <tr> <td class="label">KG Connections</td> <td><a href="/atlas" style="color:#4fc3f7">2 edges</a></td> </tr> </table>
Taok2 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview TAOK2 (Thousand and One Amino Acid Kinase 2), also known as TAOK2 , is a serine/threonine protein kinase belonging to the MAP4K family. TAOK2 is closely related to TAOK1 and plays important roles in stress-activated signaling, neuronal development, and synaptic function. It is a critical regulator of cytoskeletal dynamics and signal transduction in the brain [@tassi1999][@chen2000].
Structure TAOK2 has a similar structure to TAOK1:
N-terminal kinase domain — Catalytic serine/threonine kinase activity
Coiled-coil regions — Mediate protein-protein interactions
Proline-rich regions — SH3 domain binding motifs
C-terminal regulatory region — Autoinhibitory functionTAOK2 can form homodimers and heterodimers with TAOK1 [@dan2001].
Normal Function
Stress-Activated Signaling TAOK2 activates MAPK pathways:
p38 activation — Phosphorylates and activates MKK3/MKK6
JNK pathway — Can activate JNK signaling
ERK activation — Contributes to ERK pathway
Stress response — Activated by oxidative stress, cytokines
Neuronal Development TAOK2 is crucial for neuronal development:
Dendritogenesis — Regulates dendritic branch formation
Axon guidance — Controls axonal outgrowth
Synaptogenesis — Modulates synapse formation
Neuronal polarity — Establishes axon-dendrite polarity [@zhou2004][@zhang2007]
Synaptic Function In mature [neurons](/entities/neurons):
Synaptic plasticity — Regulates [LTP](/mechanisms/long-term-potentiation) and LTD
AMPA receptor trafficking — Modulates synaptic strength
[NMDA](/entities/nmda-receptor) receptor signaling — Affects NMDA receptor function
Postsynaptic density — Regulates PSD-95 organization
Role in Neurodegeneration
Alzheimer's Disease TAOK2 is implicated in AD:
[Tau](/proteins/tau) phosphorylation — Can phosphorylate tau at pathological sites
Synaptic loss — Contributes to synaptic dysfunction
Neuronal death — Activated by [Aβ](/proteins/amyloid-beta) toxicity
Cognitive deficits — Associated with memory impairment [@liu2013]
Intellectual Disability and Autism TAOK2 is one of the most frequently mutated genes in neurodevelopmental disorders:
De novo mutations — Causative in ID and autism
Synaptic dysfunction — Disrupted synaptic plasticity
Dendritic abnormalities — Altered neuronal morphology
Behavioral deficits — Learning and social deficits [@dgama2015]
Parkinson's Disease
Dopaminergic signaling — Modulates dopamine transmission
LRRK2 interaction — May interact with LRRK2 pathway
Therapeutic Implications TAOK2 is a potential therapeutic target:
Kinase inhibitors — Could treat neurodevelopmental disorders
Neuroprotection — Prevent neuronal dysfunction
Synaptic enhancement — Improve synaptic plasticity
Key Publications
PMID: 11980910 (https://pubmed.ncbi.nlm.nih.gov/11980910/) — Cloning of TAOK2
PMID: 12954646 (https://pubmed.ncbi.nlm.nih.gov/12954646/) — TAOK2 structure and function
PMID: 14593116 (https://pubmed.ncbi.nlm.nih.gov/14593116/) — TAOK2 in stress signaling
PMID: 15857886 (https://pubmed.ncbi.nlm.nih.gov/15857886/) — TAOK2 in neuronal development
PMID: 18559509 (https://pubmed.ncbi.nlm.nih.gov/18559509/) — TAOK2 and synapse formation
PMID: 21479819 (https://pubmed.ncbi.nlm.nih.gov/21479819/) — TAOK2 in neurodegeneration
PMID: 28988823 (https://pubmed.ncbi.nlm.nih.gov/28988823/) — TAOK2 in neurological disorders
See Also
[TAOK1 Gene](/genes/taok1)
[TAOK2 Gene](/genes/taok2)
[Signal Transduction](/mechanisms/signal-transduction)
[MAP Kinase Signaling](/mechanisms/mapk-signaling-neurodegeneration)
[Alzheimer's Disease](/diseases/alzheimers-disease)
[Autism Spectrum Disorder](/diseases/autism)
Background The study of Taok2 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.
External Links
[PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
[Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
[Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data
References
Tassi E, et al, (1999) (1999)
Chen Z, et al, (2000) (2000)
Dan I, et al, (2001) (2001)
Zhou J, et al, (2004) (2004)
Zhang M, et al, (2007) (2007)
Liu J, et al, (2013) (2013)
D'Gama PP, et al, (2015) (2015)
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