Thymidine kinase (EC 2.7.1.21) catalyzes the phosphorylation of thymidine to deoxythymidine monophosphate. Genetic variation in soluble thymidine kinase has not been identified in man. Weiss and Green (1967) found that fusion of mouse cells lacking this enzyme with normal human cells could be achieved, that progressive loss of human chromosomes from the hybrid occurred with passage of time, and that at a stage when only one human chromosome remained the cell still had the capacity to synthesize thymidine kinase. Two forms of Thymidine kinase 1, soluble have been identified in animal cells, one in cytosol and one in mitochondria. Activity of the cytosolic enzyme is high in proliferating cells and peaks during the S-phase of the cell cycle; it is very low in resting cells.

Human Thymidine kinase 2, mitochondrial (TK2) ELISA Kit employs a two-site sandwich ELISA to quantitate TK2 in samples. An antibody specific for TK2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyTK2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for TK2 is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of TK2 bound in the initial step. The color development is stopped and the intensity of the color is measured.

Human Thymidine kinase 2, mitochondrial (TK2) ELISA Kit listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.

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