The fluoride cleavable 2-(cyanoethoxy)methyl (CEM) group as reversible 3'-O-terminator for DNA sequencing-by-synthesis - synthesis, incorporation, and cleavage
- PMID: 17454736
- DOI: 10.1080/15257770701257301
The fluoride cleavable 2-(cyanoethoxy)methyl (CEM) group as reversible 3'-O-terminator for DNA sequencing-by-synthesis - synthesis, incorporation, and cleavage
Abstract
A new and promising sequencing technology called sequencing-by-synthesis (SBS) enables fast determination of DNA sequences. 2'-Deoxynucleotides containing the (2-cyanoethoxy)methyl (CEM) group at the 3'-O-position are potential reversible terminators for the SBS technology. Herein we describe the synthesis, the incorporation by several polymerases, and the cleavage of this 3'-O-blocking group using 3'-O-CEM-thymidinyl-5'-O-triphosphate 7 as an example.
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