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Thermo Scientific Native Taq DNA Polymerase is a highly thermostable DNA polymerase of the thermophilic bacterium Thermus aquaticus. The enzyme catalyzes 5'→3' synthesis of DNA, has no detectable 3'→5' exonuclease (proofreading) activity and possesses low 5'→3' exonuclease activity. In addition, the polymerase exhibits deoxynucleotidyl transferase activity, which frequently results in the addition of extra adenines at the 3'-end of PCR products. Native Taq DNA Polymerase is preferred for amplification of bacterial DNA sequences homologous to those found in E. coli.
Taq DNA Polymerase (native, with BSA) is supplied with BSA as a stabilizing agent. This version of Taq DNA Polymerase is often the best choice when amplifying DNA samples of lower purity, e.g. genomic DNA from mouse tail.
D. Celeda et al., PCR amplification and simultaneous digoxigenin incorporation of long DNA probes for fluorescence in situ hybridization. BioTechniques. 12, 98-102 (1992).
U. Finckh et al., Producing single-stranded DNA probes with the Taq DNA polymerase: a high yield protocol. BioTechniques. 10, 35-39 (1991).
H. Yu et al., Cyanine dye dUTP analogs for enzymatic labeling of DNA probes. Nucleic Acids Res. 22, 3226-3232 (1994).
K. S. Lundberg et al., High-fidelity amplification using a thermostable DNA polymerase isolated from Pyrococcus furiosus. Gene. 108(1), 1-6 (1 December 1991).
R. S. Weyant et al., Effect of ionic and nonionic detergents on the Taq polymerase. BioTechniques. 9, 308-309 (1990).