PMC full text:
Published online 2016 May 4. doi: 10.1371/journal.pone.0154862
Fig 1
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Chemical structures of the ATP analogs used in this study.
The structures of ATP, 7-deazaATP, 2'-deoxyATP and AMPPCP with key atom positions indicated. Boxes denote the region—nucleobase, sugar, triphosphate—containing the modification for that analog.