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The Taq DNA Polymerase produced by our company is a recombinant protein expressed from the cloned Escherichia coli with Thermusaquaticus DNA Polymerase gene and separated by column purification. Its molecular weight is 94 KD. The enzyme had 5 '→3' DNA polymerase activity and 5 '→3' exonuclease activity, but had no 3 '→5' exonuclease activity. In the PCR reaction, the elongation rate of this enzyme is 1-2kb/min, and the PCR product has A 3 'end band, which can be directly used for T/A vector cloning. This enzyme is not contaminated by exogenous nuclease and bacterial genomic DNA, has good stability and strong specificity, and is generally used for PCR amplification, DNA labeling, primer extension, sequence determination, flat-end addition of A, etc., of DNA fragments less than 6kb with low fidelity requirements.
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