EFdA-TP tetrasodium

EFdA-TP tetrasodium is a potent nucleoside reverse transcriptase (RT) inhibitor. EFdA-TP tetrasodium inhibits RT-catalyzed DNA synthesis as an effective immediate or delayed chain terminator (ICT or DCT). EFdA-TP tetrasodium inhibits HIV-1 RT with multiple mechanisms. EFdA-TP (tetrasodium) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

EFdA-TP tetrasodium (0.05-10 μM; for 15 min) inhibits RT-catalyzed DNA synthesis as an ICT or DCT^[1].
EFdA-TP tetrasodium can block RT as a translocation-defective RT inhibitor that dramatically slows DNA synthesis, acting as a de facto immediate chain terminator. EFdA-TP tetrasodium can function as a delayed chain terminator, allowing incorporation of an additional dNTP before blocking DNA synthesis^[1].

References:
[1]. Martin Markowitz, et al. 4'-Ethynyl-2-fluoro-2'-deoxyadenosine, MK-8591: a novel HIV-1 reverse transcriptase translocation inhibitor. Curr Opin HIV AIDS. 2018 Jul;13(4):294-299.
[2]. Eleftherios Michailidis, et al. 4'-Ethynyl-2-fluoro-2'-deoxyadenosine (EFdA) inhibits HIV-1 reverse transcriptase with multiple mechanisms. J Biol Chem. 2014 Aug 29;289(35):24533-48.