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You are at: All > Nucleotides > Nucleotides by Structural Class > Sugar Modified Nucleoside Triphosphates

Ara-ATP, Vidarabine triphosphate


Extinction Coefficient: 15,400 Lmol-1cm-1 at 258 nm
Molecular Weight: 507.2 g/mol (free acid)
Molecular Formula: C10H16N5O13P3 (free acid)
Salt Form: Lithium
Purity Specification: ≥90% by AX-HPLC 

Shipped at 100 mM in H2O.
1 µmole: 10 µL
5 µmole: 50 µL
10 µmole: 100 µL

Certificate(s) of Analysis

9-β-D-Arabinofuranosyladenine 5’-triphosphate (ara-ATP) is an active form of 9-β-D-arabinofuranosyladenine (Vidarabine) - a synthetic sugar-modified analog of natural adenosine - with  in vitro and in vivo inhibitory activity against herpes simplex virus types 1 (HSV-1), 2 (HSV-2) and varicella-zoster virus (VZV).

When used with viral DNA polymerase, ara-ATP competes with dATP for incorporation into DNA leading to a termination of DNA synthesis.   

Ara-ATP is an inhibitor of human ribonucleotide reductase which is one of the key enzymes responsible for the synthesis of 2’-deoxyribonucleotides required for DNA synthesis. Ara-ATP also inhibits RNA polyadenylation which is essential for HIV-1 and other retroviruses. It is an inhibitor for S-adenosylhomocysteine hydrolase thus preventing trans-methylation reaction.

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Pinheiro VB, Taylor AI, Cozens C, Abramov M, Renders M, Zhang S, Chaput JC, Wengel J, Peak-Chew SY, McLaughlin SH, Herdewijn P, Holliger P. Synthetic genetic polymers capable of heredity and evolution. Science. 2012 Apr 20;336(6079):341-4.



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