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Ex taq dna polymerase hot start version kit

Manufactured by Takara Bio

The EX Taq DNA polymerase Hot Start Version kit is a DNA polymerase designed for PCR amplification. It is a thermostable DNA polymerase derived from Thermus aquaticus with a hot-start feature that helps to improve specificity and sensitivity.

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3 protocols using ex taq dna polymerase hot start version kit

1

PCR Amplification of 16S Gene

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Example 1

In one example, a PCR reaction was conducted using a Takara EX Taq DNA polymerase Hot Start Version kit (Takara, cat no. RR006A) according to manufacture instructions. A potential bacterial DNA sample and primer pair SEQ ID NOs: 1 and 2 were used to produce an amplicon. This primer pair amplified a segment of the 16S gene. The results of the reaction are provided in FIG. 3 showing that no false positives were produced.

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2

Bisulfite Sequencing of rRNA Genes

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DNA was converted (me5C to T) using the EpiTect Plus Bisulfite Conversion Kit (Qiagen). The target region was then amplified by PCR using the Ex Taq DNA Polymerase, Hot Start Version Kit (TaKaRa Bio Inc.) and oligo primers o112/o113 and o124/o125 (Supplementary Table S1) to amplify promoter/5ʹETS and 3ʹETS, respectively. 3ʹETS PCR products were run on an agarose gel, sliced from the gel, and purified using a GeneClean® Turbo Kit (MP Biomedicals). PCR products were cloned into a pGEM®-T easy vector (Promega), transformed into Escherichia coli DH5α, and sequenced using T7 and SP6 primers. The sequences obtained were mapped to a reference sequence and the alignment was sent to CyMATE to analyse methylation sites in the sequence. The results were analysed using the prop.test function in R software to verify significant differences with R software (Pontvianne et al., 2012 (link)).
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3

PCR Amplification of 16S rRNA Segment

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Example 2

PCR reaction was conducted using a Takara EX Taq DNA polymerase Hot Start Version kit (Takara, cat no. RR006A) according to manufacture instructions. The sample and primer pair SEQ ID NOs: 3 and 4 were used to produce an amplicon. This primer pair amplified a segment of the 16S rRNA. The reaction also involved the use of reverse transcriptase. The results of the reaction are provided in FIGS. 3 and 4, showing that no false positives are produced.

PCR Reaction Mixture:

The master mixes evaluated consisted of the reference mastermix [ 1/10th volume 10× Ex Taq Buffer (proprietary mix), 0.2 mM of each dNTP, 1.25 units of Ex Taq, 0.2 mM each of primers and probe, template and water up to a final volume of 25 uls. which was supplemented with the different probes. The reference mastermix was prepared in a large batch.

PCR Reaction:

The following thermal cycling steps were applied:

DurationTemperatureRepetitions
 5 min95° C.1
40 cycles of 30 sec94° C.
30 sec58° C.
30 sec72° C.

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