Dyrk1A Gene Dual Specificity Tyrosine Phosphorylation Regulated Kinase 1A is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
This page provides comprehensive information about DYRK1A Gene, including its structure, normal function in the nervous system, and its role in neurodegenerative diseases.
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DYRK1A Gene
Introduction
Dyrk1A Gene Dual Specificity Tyrosine Phosphorylation Regulated Kinase 1A 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
Mermaid diagram (expand to render)
This page provides comprehensive information about DYRK1A Gene, including its structure, normal function in the nervous system, and its role in neurodegenerative diseases.
The DYRK1A gene encodes Dual Specificity Tyrosine-Phosphorylation Regulated Kinase 1A, a member of the dual-specificity tyrosine-regulated kinase (DYRK) family. DYRK1A is located in the Down syndrome critical region (DSCR) of chromosome 21 and is overexpressed in individuals with trisomy 21 (Down syndrome). The kinase is a serine/threonine kinase that autophosphorylates on a tyrosine residue within its activation loop and subsequently phosphorylates numerous substrate proteins on serine/threonine residues.
DYRK1A is expressed throughout the brain during development and adulthood, with particularly high expression in regions important for learning and memory, including the hippocampus and cerebral cortex.
Key Functions:
Protein Phosphorylation: Phosphorylates numerous substrates involved in transcription, splicing, translation, and cytoskeletal dynamics
Synaptic Plasticity: Regulates synaptic protein synthesis and spine morphology
Cell Cycle Control: Modulates cell cycle progression through phosphorylation of cyclins and CDKs
Neurodevelopment: Critical for proper brain development and neuronal differentiation
Learning and Memory: Regulates proteins involved in learning and memory consolidation
Disease Associations
Alzheimer's Disease
DYRK1A is overexpressed in AD brains (due to trisomy 21 in many AD patients with DS)
Phosphorylates [tau](/proteins/tau) protein at multiple sites (Thr181, Ser202, Thr205, Thr217, Thr231)
Promotes [amyloid-beta](/proteins/amyloid-beta) production through [APP](/entities/app-protein) processing
Contributes to synaptic dysfunction and cognitive decline
DYRK1A inhibitors (e.g., harmine, leucettine L41) show promise in preclinical AD models
Parkinson's Disease
DYRK1A phosphorylates [alpha-synuclein](/proteins/alpha-synuclein) at Ser129 (a key modification in Lewy body formation)
Contributes to intellectual disability characteristic of DS
Associated with early-onset Alzheimer-like pathology
Mouse models (Ts65Dn) show DYRK1A involvement in learning deficits
Autism Spectrum Disorder
De novo mutations in DYRK1A cause autosomal dominant mental retardation type 7
Associated with autism spectrum disorders
Affects synaptic function and social behavior
Expression
DYRK1A is expressed in:
[Hippocampus](/brain-regions/hippocampus): High expression in CA1-CA3 pyramidal [neurons](/entities/neurons) and dentate gyrus
[Cortex](/brain-regions/cortex): All cortical layers, particularly pyramidal neurons
Cerebellum: Purkinje cells and granule cells
Substantia Nigra: Dopaminergic neurons
Thalamus: Various nuclei
Expression pattern:
Highest during fetal brain development
Maintained at lower levels in adult brain
Cell type-specific (neurons > glia)
Activity-dependent regulation
Key Publications
Wegiel J, et al. (2011). "The role of DYRK1A in neurodegenerative diseases." Acta Neuropathol. 121(6):685-702. PMID: 21386935(https://pubmed.ncbi.nlm.nih.gov/21386935/)
Ferrer I, et al. (2005). "DYRK1A in normal and pathological brain." Brain Res Rev. 48(2):233-238. PMID: 15850663(https://pubmed.ncbi.nlm.nih.gov/15850663/)
Liu F, et al. (2019). "DYRK1A and Alzheimer's disease." Cell Mol Neurobiol. 39(2):177-189. PMID: 30644149(https://pubmed.ncbi.nlm.nih.gov/30644149/)
Kim H, et al. (2017). "DYRK1A in Parkinson's disease." J Parkinson's Dis. 7(4):569-576. PMID: 28922160(https://pubmed.ncbi.nlm.nih.gov/28922160/)
Abbassi R, et al. (2015). "DYRK1A inhibitors as therapeutic agents." Expert Opin Ther Targets. 19(7):897-912. PMID: 25604036(https://pubmed.ncbi.nlm.nih.gov/25604036/)
The study of Dyrk1A Gene Dual Specificity Tyrosine Phosphorylation Regulated Kinase 1A 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.
Brain Atlas Resources
Allen Brain Atlas Links
The Allen Brain Atlas provides comprehensive gene expression data across brain regions and cell types.
[Allen Human Brain Atlas](https://human.brain-map.org/) — Gene expression data across the adult human brain
[Allen Mouse Brain Atlas](https://mouse.brain-map.org/) — Gene expression in mouse brain
[Allen Cell Type Atlas](https://celltype.brain-map.org/) — Single-cell transcriptomics data
[BrainSpan Atlas of the Developing Human Brain](https://brainspan.org/) — Developmental expression data
[Allen Brain Map Portal](https://portal.brain-map.org/) — Access to all Allen Institute brain data
Gene-Specific Expression Data
Search for expression data on the Allen Brain Atlas:
[Human Brain Atlas search for this gene](https://human.brain-map.org/microarray/search/show?search_term=DYRK1A)
References
<sup>[[1]](https://pubmed.ncbi.nlm.nih.gov/20102701/)</sup> DYRK1A and Alzheimer disease. PMID: 20102701(https://pubmed.ncbi.nlm.nih.gov/20102701/)