A Sample Purification Method for Rugged and High-Performance DNA Sequencing by Capillary Electrophoresis Using Replaceable Polymer Solutions. A. Development of the Cleanup Protocol
| Autor: | Lev Kotler, Marie C. Ruiz-Martinez, Oscar Salas-Solano, Emanuel Carrilho, Barry L. Karger |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Sanger sequencing Chromatography Base Sequence Polymers Molecular Sequence Data Size-exclusion chromatography Polyacrylamide Ultrafiltration Electrophoresis Capillary DNA Sequence Analysis DNA Templates Genetic Polymer Dideoxynucleosides DNA sequencing Analytical Chemistry Solutions symbols.namesake chemistry.chemical_compound Capillary electrophoresis Chlorides chemistry Spin column-based nucleic acid purification symbols |
| Zdroj: | Analytical Chemistry. 70:1516-1527 |
| ISSN: | 1520-6882 0003-2700 |
| Popis: | A method for the cleanup of Sanger DNA sequencing reaction products for capillary electrophoresis analysis with replaceable polymer solutions has been developed. A poly(ether sulfone) ultrafiltration membrane pretreated with linear polyacrylamide was first used to remove template DNA from the sequencing samples. Then, gel filtration in a spin column format (two columns per sample) was employed to decrease the concentration of salts below 10 microM in the sample solution. The method was very reproducible and increased the injected amount of the sequencing fragments 10-50-fold compared to traditional cleanup protocols. Using M13mp18 as template, the resulting cleaned-up single DNA sequencing fragments could routinely be separated to more than 1000 bases with a base-calling accuracy of at least 99% for 800 bases. The method is simple and universal and can be easily automated. In the following paper, a systematic study to determine quantitatively the effects of the sample solution components such as high-mobility ions (e.g., chloride and dideoxynucleotides) and template DNA on the injected amount and separation efficiency of the sequencing fragments is presented. |
| Databáze: | OpenAIRE |
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