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Function

Dual-specificity kinase which possesses both serine/threonine and tyrosine kinase activities. Plays an essential role in ribosomal DNA (rDNA) double-strand break repair and rDNA copy number maintenance (PubMed:33469661). During DNA damage, mediates transcription silencing in part via phosphorylating and enforcing DSB accumulation of the histone methyltransferase EHMT2 (PubMed:32611815). Enhances the transcriptional activity of TCF1/HNF1A and FOXO1. Inhibits epithelial cell migration. Mediates colon carcinoma cell survival in mitogen-poor environments. Inhibits the SHH and WNT1 pathways, thereby enhancing adipogenesis. In addition, promotes expression of the gluconeogenic enzyme glucose-6-phosphatase catalytic subunit 1 (G6PC1).

Involvement in disease

Abdominal obesity-metabolic syndrome 3

AOMS3

A form of abdominal obesity-metabolic syndrome, a disorder characterized by abdominal obesity, high triglycerides, low levels of high density lipoprotein cholesterol, high blood pressure, and elevated fasting glucose levels. AOMS3 is characterized by early-onset coronary artery disease, central obesity, hypertension, and diabetes.

None

The disease is caused by variants affecting the gene represented in this entry.

Post-translational modifications

Autophosphorylated on tyrosine residues. Phosphorylated by MAP kinase. Tyrosine phosphorylation may be required for dimerization.

Sequence similarities

Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. MNB/DYRK subfamily.

Tissue specificity

Highest expression in skeletal muscle, testis, heart and brain with little expression in colon or lung. Expressed in a variety of tumor cell lines.

Cellular localization

  • Nucleus
  • Nucleus
  • Nucleolus
  • Chromosome
  • Localizes to sites of double-strand breaks (DSBs) following DNA damage.

Alternative names

MIRK, DYRK1B, Dual specificity tyrosine-phosphorylation-regulated kinase 1B, Minibrain-related kinase, Mirk protein kinase

Target type

Proteins

Primary research area

Oncology

Molecular weight

69198Da

We found 2 products in 2 categories

Primary Antibodies

Application

Reactive species

Proteins & Peptides

Species of origin

Search our catalogue for 'DYRK1B' (2)

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