Primer design for automated DNA sequencing utilizing T7 DNA polymerase and internal labeling with fluorescein-15-dATP

We have identified additional criteria for the walking primer design that improve the success rate of automated fluorescent DNA sequencing using the internal labeling technique and T7 DNA polymerase. These criteria resulted from the evaluation of over 220 sequences generated with walking primers and...

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Veröffentlicht in:BioTechniques. - 1988. - 18(1995), 4 vom: 16. Apr., Seite 688-97
1. Verfasser: Wiemann, S (VerfasserIn)
Weitere Verfasser: Rupp, T, Zimmermann, J, Voss, H, Schwager, C, Ansorge, W
Format: Aufsatz
Sprache:English
Veröffentlicht: 1995
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Journal Article Research Support, Non-U.S. Gov't DNA Primers Deoxyadenine Nucleotides Fluoresceins fluorescein-15-deoxyadenosine triphosphate bacteriophage T7 induced DNA polymerase EC 2.7.7.- RNA-Directed DNA Polymerase EC 2.7.7.49 mehr... DNA-Directed DNA Polymerase EC 2.7.7.7 Exonucleases EC 3.1.-
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245 1 0 |a Primer design for automated DNA sequencing utilizing T7 DNA polymerase and internal labeling with fluorescein-15-dATP 
264 1 |c 1995 
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500 |a Date Completed 09.08.1995 
500 |a Date Revised 15.11.2006 
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520 |a We have identified additional criteria for the walking primer design that improve the success rate of automated fluorescent DNA sequencing using the internal labeling technique and T7 DNA polymerase. These criteria resulted from the evaluation of over 220 sequences generated with walking primers and fluorescein-15-dATP as internal label in the course of the European Community (EC) yeast genome sequencing project. In this project primers were designed using standard commercial software. Intensities of sequencing signals varied over a broad range from very strong to very weak, depending on the primers used. This led us to evaluate primer performance relative to (i) the template sequence immediately downstream of the primer binding site and (ii) the primer sequence itself. Our experiments show that the position of the first labeled dATP to be incorporated downstream of the primer into the growing strand is substantial for the signal intensity of the sequence. The closer to the primer that the first 'A' is incorporated, the stronger the peak intensities are. An additional feature of sequencing with native T7 DNA polymerase is its ability to remove a 3'-terminal 'A' of the primer by the 3'-->5' exonuclease activity and to exchange the nucleotide with a labeled dATP by the polymerase activity 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Deoxyadenine Nucleotides  |2 NLM 
650 7 |a Fluoresceins  |2 NLM 
650 7 |a fluorescein-15-deoxyadenosine triphosphate  |2 NLM 
650 7 |a bacteriophage T7 induced DNA polymerase  |2 NLM 
650 7 |a EC 2.7.7.-  |2 NLM 
650 7 |a RNA-Directed DNA Polymerase  |2 NLM 
650 7 |a EC 2.7.7.49  |2 NLM 
650 7 |a DNA-Directed DNA Polymerase  |2 NLM 
650 7 |a EC 2.7.7.7  |2 NLM 
650 7 |a Exonucleases  |2 NLM 
650 7 |a EC 3.1.-  |2 NLM 
700 1 |a Rupp, T  |e verfasserin  |4 aut 
700 1 |a Zimmermann, J  |e verfasserin  |4 aut 
700 1 |a Voss, H  |e verfasserin  |4 aut 
700 1 |a Schwager, C  |e verfasserin  |4 aut 
700 1 |a Ansorge, W  |e verfasserin  |4 aut 
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