Abstract
A target length limitation to PCR amplification of DNA has been identified and addressed. Concomitantly, the base-pair fidelity, the ability to use PCR products as primers, and the maximum yield of target fragment were increased. These improvements were achieved by the combination of a high level of an exonuclease-free, N-terminal deletion mutant of Taq DNA polymerase, Klentaq1, with a very low level of a thermostable DNA polymerase exhibiting a 3'-exonuclease activity (Pfu, Vent, or Deep Vent). At least 35 kb can be amplified to high yields from 1 ng of lambda DNA template.
MeSH Terms
Bacteriophage lambda/genetics
Base Composition
Base Sequence
DNA Primers
DNA, Viral/analysis,chemistry
Exonucleases/metabolism
Hydrogen-Ion Concentration
Molecular Sequence Data
Mutation
Particle Size
Polymerase Chain Reaction/methods
Templates, Genetic
Chemicals
DNA Primers
DNA, Viral
Exonucleases
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Barnes W M
Department of Biochemistry and Molecular Biophysics 8231, Washington University School of Medicine, St. Louis, MO 63110.
References (18)
18 references, click to expand
-
In vitro amplification of DNA fragments greater than 10 kb.
Anal Biochem. 1992 Apr;202(1):46-9
PMID: 1535762
-
Identification and characterization of a novel Bacillus thuringiensis delta-endotoxin entomocidal to coleopteran and lepidopteran larvae.
Mol Microbiol. 1992 May;6(9):1211-7
PMID: 1588820
-
Instability and decay of the primary structure of DNA.
Nature. 1993 Apr 22;362(6422):709-15
PMID: 8469282
-
High-level expression, purification, and enzymatic characterization of full-length Thermus aquaticus DNA polymerase and a truncated form deficient in 5' to 3' exonuclease activity.
PCR Methods Appl. 1993 May;2(4):275-87
PMID: 8324500
-
Transposition of the lac region to the gal region of the Escherichia coli chromosome: isolation of lambda-lac transducing bacteriophages.
J Bacteriol. 1971 Oct;108(1):5-9
PMID: 4941573
-
Rate of depurination of native deoxyribonucleic acid.
Biochemistry. 1972 Sep 12;11(19):3610-8
PMID: 4626532
-
Separation of large DNA molecules by contour-clamped homogeneous electric fields.
Science. 1986 Dec 19;234(4783):1582-5
PMID: 3538420
-
Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase.
Science. 1988 Jan 29;239(4839):487-91
PMID: 2448875
-
Novel non-templated nucleotide addition reactions catalyzed by procaryotic and eucaryotic DNA polymerases.
Nucleic Acids Res. 1988 Oct 25;16(20):9677-86
PMID: 2460825
-
Structural bases of a long-stretched deletion: completing the lambda plac5 DNA primary structure.
Nucleic Acids Res. 1988 Nov 11;16(21):10199-212
PMID: 2973573
-
Amplification of human minisatellites by the polymerase chain reaction: towards DNA fingerprinting of single cells.
Nucleic Acids Res. 1988 Dec 9;16(23):10953-71
PMID: 3205737
-
A simplified method for in vivo footprinting using DMS.
Nucleic Acids Res. 1990 Sep 25;18(18):5574
PMID: 2216750
-
Optimization of the annealing temperature for DNA amplification in vitro.
Nucleic Acids Res. 1990 Nov 11;18(21):6409-12
PMID: 2243783
-
Amplification of a 9.0-kb fragment using PCR.
Biotechniques. 1991 Aug;11(2):185-6
PMID: 1931016
-
Direct and crossover PCR amplification to facilitate Tn5supF-based sequencing of lambda phage clones.
Nucleic Acids Res. 1991 Nov 25;19(22):6177-82
PMID: 1659687
-
High-fidelity amplification using a thermostable DNA polymerase isolated from Pyrococcus furiosus.
Gene. 1991 Dec 1;108(1):1-6
PMID: 1761218
-
The fidelity of Taq polymerase catalyzing PCR is improved by an N-terminal deletion.
Gene. 1992 Mar 1;112(1):29-35
PMID: 1551596
-
Optimization of long-distance PCR using a transposon-based model system.
PCR Methods Appl. 1992 Aug;2(1):51-9
PMID: 1337007