Dual specificity tyrosine-phosphorylation-regulated kinase 1A is an enzyme that in humans is encoded by the DYRK1Agene.[5] Alternative splicing of this gene generates several transcript variants differing from each other either in the 5' UTR or in the 3' coding region.[6] These variants encode for at least five different isoforms.[7]
DYRK1A is a member of the dual-specificity tyrosine phosphorylation-regulated kinase (DYRK) family. This member contains a nuclear targeting signal sequence, a protein kinase domain, a leucine zipper motif, and a highly conservative 13-consecutive-histidine repeat. It catalyzes its autophosphorylation on serine/threonine and tyrosine residues. It may play a significant role in a signaling pathway regulating cell proliferation and may be involved in brain development. This gene is a homolog of the Drosophila mnb (minibrain) gene.[7]
DYRK1A has also been shown to modulate plasma homocysteine levels in a mouse model of overexpression.[8]
Clinical significance
DYRK1A is localized in the Down syndrome critical region of chromosome 21, and is considered to be a strong candidate gene for learning defects associated with Down syndrome.[7] In addition, a polymorphism (SNP) in DYRK1A was found to be associated with HIV-1 replication in monocyte-derived macrophages, as well as with slower progression to AIDS in two independent cohorts of HIV-1-infected individuals.[6] Mutations in DYRK1A are also associated with autism spectrum disorder.[9]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Guimera J, Pritchard M, Nadal M, Estivill X (Sep 1997). "Minibrain (MNBH) is a single copy gene mapping to human chromosome 21q22.2". Cytogenet Cell Genet. 77 (3–4): 182–4. doi:10.1159/000134571. PMID9284911.
Hämmerle B, Elizalde C, Galceran J, et al. (2004). "The MNB/DYRK1A protein kinase: Neurobiological functions and Down syndrome implications". Advances in Down Syndrome Research. Journal of Neural Transmission Supplement 67. Vol. 67. pp. 129–37. doi:10.1007/978-3-7091-6721-2_11. ISBN978-3-211-40776-9. PMID15068245. {{cite book}}: |journal= ignored (help)
Galceran J, de Graaf K, Tejedor FJ, Becker W (2004). "The MNB/DYRK1A protein kinase: Genetic and biochemical properties". Advances in Down Syndrome Research. Journal of Neural Transmission Supplement 67. Vol. 67. pp. 139–48. doi:10.1007/978-3-7091-6721-2_12. ISBN978-3-211-40776-9. PMID15068246. {{cite book}}: |journal= ignored (help)
Schultz SJ, Nigg EA (1994). "Identification of 21 novel human protein kinases, including 3 members of a family related to the cell cycle regulator nimA of Aspergillus nidulans". Cell Growth Differ. 4 (10): 821–30. PMID8274451.
Shindoh N, Kudoh J, Maeda H, et al. (1996). "Cloning of a human homolog of the Drosophila minibrain/rat Dyrk gene from "the Down syndrome critical region" of chromosome 21". Biochem. Biophys. Res. Commun. 225 (1): 92–9. doi:10.1006/bbrc.1996.1135. PMID8769099.
Song WJ, Sternberg LR, Kasten-Sportès C, et al. (1997). "Isolation of human and murine homologues of the Drosophila minibrain gene: human homologue maps to 21q22.2 in the Down syndrome "critical region"". Genomics. 38 (3): 331–9. doi:10.1006/geno.1996.0636. PMID8975710.
Chen H, Antonarakis SE (1997). "Localisation of a human homologue of the Drosophila mnb and rat Dyrk genes to chromosome 21q22.2". Hum. Genet. 99 (2): 262–5. doi:10.1007/s004390050350. PMID9048932. S2CID26729330.
Smith DJ, Stevens ME, Sudanagunta SP, et al. (1997). "Functional screening of 2 Mb of human chromosome 21q22.2 in transgenic mice implicates minibrain in learning defects associated with Down syndrome". Nat. Genet. 16 (1): 28–36. doi:10.1038/ng0597-28. PMID9140392. S2CID29490013.
Dahmane N, Ghezala GA, Gosset P, et al. (1998). "Transcriptional map of the 2.5-Mb CBR-ERG region of chromosome 21 involved in Down syndrome". Genomics. 48 (1): 12–23. doi:10.1006/geno.1997.5146. PMID9503011.
Wang J, Kudoh J, Shintani A, et al. (1998). "Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts". Biochem. Biophys. Res. Commun. 250 (3): 704–10. doi:10.1006/bbrc.1998.9392. PMID9784410.
Guimera J, Casas C, Estivill X, Pritchard M (1999). "Human minibrain homologue (MNBH/DYRK1): characterization, alternative splicing, differential tissue expression, and overexpression in Down syndrome". Genomics. 57 (3): 407–18. doi:10.1006/geno.1999.5775. PMID10329007.
Martí E, Altafaj X, Dierssen M, et al. (2003). "Dyrk1A expression pattern supports specific roles of this kinase in the adult central nervous system". Brain Res. 964 (2): 250–63. doi:10.1016/S0006-8993(02)04069-6. PMID12576186. S2CID35092325.
Jarhad DB, Mashelkar KK, Kim HR, Noh M, Jeong LS (2018). "Dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) inhibitors as potential therapeutics". Journal of Medicinal Chemistry. 61 (22): 9791–9810. doi:10.1021/acs.jmedchem.8b00185. PMID29985601. S2CID51606533.
External links
Overview of all the structural information available in the PDB for UniProt: Q13627 (Dual specificity tyrosine-phosphorylation-regulated kinase 1A) at the PDBe-KB.