Dual specificity tyrosine-phosphorylation-regulated kinase 1B is an enzyme

Enzyme

Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates...

 that in humans is encoded by the DYRK1B gene

Gene

A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...

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Function

DYRK1B is a member of the DYRK family of protein kinase

Protein kinase

A protein kinase is a kinase enzyme that modifies other proteins by chemically adding phosphate groups to them . Phosphorylation usually results in a functional change of the target protein by changing enzyme activity, cellular location, or association with other proteins...

s. DYRK1B contains a bipartite nuclear localization signal and is found mainly in muscle and testis. The protein is proposed to be involved in the regulation of nuclear functions. Three isoforms of DYRK1B have been identified differing in the presence of two alternatively spliced exons within the catalytic domain.

Interactions

DYRK1B has been shown to interact

Protein-protein interaction

Protein–protein interactions occur when two or more proteins bind together, often to carry out their biological function. Many of the most important molecular processes in the cell such as DNA replication are carried out by large molecular machines that are built from a large number of protein...

 with PCBD1

PCBD1

Pterin-4-alpha-carbinolamine dehydratase is an enzyme that in humans is encoded by the PCBD1 gene.-Interactions:PCBD1 has been shown to interact with DYRK1B and HNF1A.-Further reading:...

 and RANBP9

RANBP9

Ran-binding protein 9 is a protein that in humans is encoded by the RANBP9 gene.-Interactions:RANBP9 has been shown to interact with C-Met, DYRK1B, USP11, DISC1, Androgen receptor, Glucocorticoid receptor, S100A7, HIPK2 and MKLN1.-Further reading:...

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