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  • Title: DNA sequencing by synthesis with degenerate primers.
    Author: Tang C, Shi X, Li X, Lu Z.
    Journal: J Genet Genomics; 2008 Sep; 35(9):545-51. PubMed ID: 18804073.
    Abstract:
    The degenerate primer-based sequencing was developed by a synthesis method (DP-SBS) for high-throughput DNA sequencing, in which a set of degenerate primers are hybridized on the arrayed DNA templates and extended by DNA polymerase on microarrays. In this method, a different set of degenerate primers containing a given number (n) of degenerate nucleotides at the 3'-ends were annealed to the sequenced templates that were immobilized on the solid surface. The nucleotides (n+1) on the template sequences were determined by detecting the incorporation of fluorescent labeled nucleotides. The fluorescent labeled nucleotide was incorporated into the primer in a base-specific manner after the enzymatic primer extension reactions and nine-base length were read out accurately. The main advantage of the DP-SBS is that the method only uses very conventional biochemical reagents and avoids the complicated special chemical reagents for removing the labeled nucleotides and reactivating the primer for further extension. From the present study, it is found that the DP-SBS method is reliable, simple, and cost-effective for laboratory-sequencing a large amount of short DNA fragments.
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