| 摘要 |
The invention relates to nucleosides comprising a reporter moiety which also functions to limit polymerase activity, characterised in that the reporter moiety is attached to the nucleoside through a linkage group cleavable by a hydrolase enzyme wherein the hydrolase enzyme is selected from the group consisting of esterases, phosphatases, peptidases, penicillin amidases, glycosidases and phosphorylases.
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