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Deoxycytidine triphosphate trisodium salt (dCTP trisodium salt or 2′-Deoxycytidine-5′-triphosphate trisodium salt) is a nucleoside triphosphate that can be used for DNA synthesis. Deoxycytidine triphosphate trisodium salt has many applications, such as real-time PCR, cDNA synthesis, and DNA sequencing.

2′-Deoxycytidine-5′-triphosphate trisodium salt is an activator that has been shown to exhibit anticancer and antiviral activities. It is a novel nucleoside phosphoramidite that is used in the synthesis of DNA, RNA, and other nucleic acids. 2′-Deoxycytidine-5′-triphosphate trisodium salt has been modified by substituting the oxygen atom for a sulfur atom at the 5' position of the sugar moiety. This change makes it resistant to degradation by ribonucleases. 2′-Deoxycytidine-5′-triphosphate trisodium salt has also been shown to act as an inhibitor of human telomerase activity.

Assays of thirteen cell lines, derived from mouse lymphomas, myelomas, myeloid tumors, and a mastocytoma, for sensitivity to growth inhibition by 1-β-D-arabinofuranosylcytosine (ara-C) revealed a spectrum between the most and least sensitive which differed 100-fold from each other. An inverse correlation between sensitivity and cellular Deoxycytidine triphosphate (2′-Deoxycytidine-5′-triphosphate, dCTP) content is found, and this suggested that sensitivity of cells might be increased if the dCTP content was lowered during cell exposure to ara-C.
Deoxycytidine triphosphate trisodium salt is a phosphoethanolamine cytidylyltransferase substrate.

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