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Three DNA sequencing methods using capillary gel electrophoresis and laser-induced fluorescence - PubMed

  • ️Tue Jan 01 1991

Comparative Study

. 1991 Dec 15;63(24):2835-41.

doi: 10.1021/ac00024a006.

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Comparative Study

Three DNA sequencing methods using capillary gel electrophoresis and laser-induced fluorescence

H Swerdlow et al. Anal Chem. 1991.

Abstract

Capillary gel electrophoresis is demonstrated for the four-spectral-channel sequencing technique of Smith, the two-spectral-channel sequencing technique of Prober, and the one-spectral-channel sequencing technique of Richardson and Tabor. Sequencing rates up to 1000 bases/h are obtained at electric field strengths of 465 V/cm. At lower electric field strengths, capillary electrophoresis produces useful data for fragments greater than 550 nucleotides in length with 2 times better resolution than slab gel electrophoresis. An on-column detector produces detection limits of 200 zmol (1 zmol = 10(-21) mol = 600 molecules) for the four-spectral-channel technique. A postcolumn detector, based on the sheath flow cuvette, produces detection limits of 20 and 2 zmol for the two- and one-spectral-channel techniques, respectively.

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