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Incorporation of reporter molecule-labeled nucleotides by DNA polymerases. II. High-density labeling of natural DNA.


Tasara, T; Angerer, B; Damond, M; Winter, H; Dörhöfer, S; Hübscher, U; Amacker, M (2003). Incorporation of reporter molecule-labeled nucleotides by DNA polymerases. II. High-density labeling of natural DNA. Nucleic Acids Research, 31(10):2636-2646.

Abstract

The modification of nucleic acids using nucleotides linked to detectable reporter or functional groups is an important experimental tool in modern molecular biology. This enhances DNA or RNA detection as well as expanding the catalytic repertoire of nucleic acids. Here we present the evaluation of a broad range of modified deoxyribonucleoside 5'-triphosphates (dNTPs) covering all four naturally occurring nucleobases for potential use in DNA modification. A total of 30 modified dNTPs with either fluorescent or non-fluorescent reporter group attachments were systematically evaluated individually and in combinations for high-density incorporation using different model and natural DNA templates. Furthermore, we show a side-by-side comparison of the incorporation efficiencies of a family A (Taq) and B (Vent(R) exo-) type DNA polymerase using the differently modified dNTP substrates. Our results show superior performance by a family B-type DNA polymerase, Vent(R) exo-, which is able to fully synthesize a 300 bp DNA product when all natural dNTPs are completely replaced by their biotin-labeled dNTP analogs. Moreover, we present systematic testing of various combinations of fluorescent dye-modified dNTPs enabling the simultaneous labeling of DNA with up to four differently modified dNTPs.

The modification of nucleic acids using nucleotides linked to detectable reporter or functional groups is an important experimental tool in modern molecular biology. This enhances DNA or RNA detection as well as expanding the catalytic repertoire of nucleic acids. Here we present the evaluation of a broad range of modified deoxyribonucleoside 5'-triphosphates (dNTPs) covering all four naturally occurring nucleobases for potential use in DNA modification. A total of 30 modified dNTPs with either fluorescent or non-fluorescent reporter group attachments were systematically evaluated individually and in combinations for high-density incorporation using different model and natural DNA templates. Furthermore, we show a side-by-side comparison of the incorporation efficiencies of a family A (Taq) and B (Vent(R) exo-) type DNA polymerase using the differently modified dNTP substrates. Our results show superior performance by a family B-type DNA polymerase, Vent(R) exo-, which is able to fully synthesize a 300 bp DNA product when all natural dNTPs are completely replaced by their biotin-labeled dNTP analogs. Moreover, we present systematic testing of various combinations of fluorescent dye-modified dNTPs enabling the simultaneous labeling of DNA with up to four differently modified dNTPs.

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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Biochemistry and Molecular Biology
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:15 May 2003
Deposited On:11 Feb 2008 12:18
Last Modified:05 Apr 2016 12:15
Publisher:Oxford University Press
ISSN:0305-1048
Publisher DOI:10.1093/nar/gkg371
PubMed ID:12736314
Permanent URL: http://doi.org/10.5167/uzh-781

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