Tyrosine-protein kinase 6 is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
that in humans is encoded by the ''PTK6''
gene
In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...
.
Function
Tyrosine-protein kinase 6—also known as BRK
(breast tumor kinase)—is a cytoplasmic non-receptor
protein kinase
A protein kinase is a kinase which selectively modifies other proteins by covalently adding phosphates to them (phosphorylation) as opposed to kinases which modify lipids, carbohydrates, or other molecules. Phosphorylation usually results in a fu ...
which may function as an intracellular signal transducer in epithelial tissues. The encoded protein has been shown to undergo autophosphorylation.
Clinical significance
Overexpression of this gene in mammary epithelial cells leads to sensitization of the cells to epidermal growth factor and results in a partially transformed phenotype. Expression of this gene has been detected at low levels in some breast tumors but not in normal breast tissue.
Interactions
PTK6 has been shown to
interact
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with
STAP2
Signal-transducing adaptor protein 2 is a protein that in humans is encoded by the ''STAP2'' gene.
This gene encodes the substrate of breast tumor kinase, an Src-type non-receptor tyrosine kinase. The encoded protein possesses domains and several ...
and
KHDRBS1
KH domain-containing, RNA-binding, signal transduction-associated protein 1 is a protein that in humans is encoded by the ''KHDRBS1'' gene.
This gene encodes a member of the K homology domain-containing, RNA-binding, signal transduction-associated ...
.
References
Further reading
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Tyrosine kinases
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