TP HS DNA-free 2x Master Mix

Product description

TP HS DNA-free 2x Master Mix is dedicated for universal analysis of DNA samples using PCR. The Master Mix is not contaminated with bacterial and fungal DNA and therefore is especially useful for bacterial and fungal DNA genotyping. It contains anti-Taq monoclonal antibody for hot-start (HS)PCR. It also contains trehalose and 1,2-propanediol (TP) and thus allows amplification of the samples, which are otherwise difficult to amplify, including GC rich amplicons and samples containing PCR inhibitors (Horáková a spol., BMC Biotechnology, 11:41, 2011).

Rapid preparation of the samples

• All components of the Master Mix are 2x concentrated (optimized reaction buffer containing trehalose and 1,2-propanediol, nucleotides, DNA-free Taq DNA polymerase, and anti-Taq polymerase monoclonal antibody), which facilitates rapid preparation of the samples. The samples are prepared by mixing an aliquot of the Master Mix with oligonucleotide primers, tested sample containing template DNA, and H₂O (included).
• TP HS DNA-free 2x Master Mix contains anti‐Taq DNA monoclonal antibody, which binds and inhibits activity of the Taq DNA polymerase. This allows set up of reactions at room temperature. The antibody‐based hot- start does not require a separate high temperature incubation step to activate the enzyme.
• TP HS DNA-free 2x Master Mix is especially useful for routine analyses of large numbers of DNA samples. To 0.5 ml of the Master Mix in original tube, primers (e.g. 40 µl forward and 40 µl reverse) and PCR H₂O (380 µl) are added and mixed; the "armed" Master Mix can be stored at -20 ± 5°C. Immediately before use, the Master Mix is thawed,  each 24 µl aliquot is mixed with 1 µl of the tested sample containing DNA template and PCR is performed.

Technical data

Components and packaging

• 1 tube with 0.5 ml TP HS DNA-free 2x Master Mix (for 40 reactions, 25 µl each)
• 1 tube with 1.5 ml PCR Ultra H₂O.

Storage             

• For short terms (days) at 2 - 8°C.
• For long terms (weeks and months) at -20 ± 5°C.

 Composition:

• TP HS DNA-free 2x Master Mix contains: 150 mM Tris-HCl, pH 8.8 (25°C), 40 mM (NH₄)₂SO₄, 0.4 M trehalose, 2 M 1,2-propanediol, 0.02% Tween 20, 5 mM MgCl₂, 400 µM dATP, 400 µM dCTP, 400 µM dGTP, 400 µM dTTP, DNA-free Taq DNA polymerase (50 U/ml), Taq DNA polymerase-specific monoclonal antibody, stabilizers, and additives.

 Quality control:

• Each batch of TP HS DNA-free 2x Master Mix is tested for amplification of a single copy gene with high content of GC in genomic DNA and for the absence of bacterial DNA in the Master Mix; in samples with primers for bacterial DNA, but without externally added template DNA no amplicons are detected after 40 cycles of amplification.