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SCRIPT RT-PCR Master (2x)

One-Step RT-PCR Master Mix (2x conc.) for highly sensitive and specific amplification

Cat. No. Amount Price (EUR) Buy / Note
PCR-525S 2 x 1,25 ml (250 reactions x 20 μl) 345,20 Add to Basket/Quote Add to Notepad
PCR-525L 10 x 1,25 ml (2500 reactions x 20 μl) 1.380,70 Add to Basket/Quote Add to Notepad

For general laboratory use.

Shipping: shipped on gel packs

Storage Conditions: store at -20 °C
avoid freeze/thaw cycles
stable at 4 °C for up to 4 weeks

Shelf Life: 12 months

Form: liquid

SCRIPT RT-PCR Master is designed for performing highly sensitive and specific RT-PCR convenient in single tubes. The enzyme mix is based on a genetically engineered reverse transcriptase with enhanced thermal stability providing increased specificity, high cDNA yield and improved efficiency for highly structured and long cDNA fragments. The 2 x conc. mix contains all reagents required for RT-PCR (except template and primer) in one tube to ensure fast and easy preparation with a minimum of pipetting steps. Premium quality enzymes in combination with ultrapure dNTPs and an advanced buffer system ensure superior amplification results.
RT-PCR is used to amplify double-stranded DNA from single-stranded RNA templates. In the RT step the reverse transcriptase synthesizes single-stranded DNA molecules (cDNA) complementary to the RNA template. In the first cycle of the PCR step hot start DNA polymerase synthesizes DNA molecules complementary to the cDNA, thus generating a double-stranded DNA template.
During subsequent rounds of cycling the DNA polymerase exponentially amplifies this double-stranded DNA template. In one-step RT-PCR all components of RT and PCR are mixed in one tube so that the complete reaction can be performed without opening the tube. This offers tremendous convenience when applied in routine testing and minimizes the risk of contaminations.
SCRIPT RT-PCR Master contains RNase inhibitor that is essential when working with low amounts of starting RNA.

Targets can generally be detected from <1 pg to 20 ng poly(A) RNA (mRNA) or 10 pg to 1 μg total RNA. Even lower amounts of RNA may be successfully amplified by using highly expressed transcripts.

2x conc. master mix containing reverse transcriptase, antibody-blocked hot start polymerase, RNase inhibitor, dNTPs, reaction buffer, additives and stabilizers

PCR-grade Water

Preparation of the RT-PCR Assay

RT-PCR assay without sample denaturation

Recommended for most standard combinations of template RNA and primers, sample denaturation can be omitted with no negative effect on results.

Add the following components to a nuclease-free microtube. Pipett on ice and mix the components by pipetting gently up and down. In general, water, RNA and primers should be mixed together before the remaining components are added.

componentstock conc.final conc.20 μl assay
SCRIPT RT-PCR Master2x1x10 μl
RNA template1)-1 pg - 1 μgx μl
forward Primer10 μl200-400 nM1-2 μl
reverse Primer10 μl200-400 nM1-2 μl
PCR-grade water--fill up to
20 μl

1)1 ng to 500 ng polyA RNA or 10 ng to 5 μg total RNA

Continue with reverse transcription and thermal cycling as recommended.

RT-PCR assay with sample denaturation

Sample denaturation is particularly recommended for RNA targets that exhibit a high degree of secondary structure, for self- or cross-complementary primers and for initial experiments with new targets.

Preparation of the RNA Template / Primer Mix
Add the following components to a nuclease-free microtube and mix by pipetting gently up and down.

componentstock conc.final conc.20 μl assay
RNA template1)-1 pg - 1 μgx μl
forward Primer10 μM200-400 nM1-2 μl
reverse Primer10 μM200-400 nM1-2 μl
RNase-free water--fill up to
10 μl

Denaturation and primer annealing
Incubate the mixture at 70 °C for 5 min and place it at room temperature for 5 min.

Preparation of the RT-PCR Mix
Add the following components to a nuclease-free PCR-tube and mix by pipetting gently up and down:

componentstock conc.final conc.20 μl assay
RNA template/Primer Mix 10 μl
PCR-grade water2x1x10 μl

Reverse transcription and thermal cycling:
Place the vials in a PCR cycler and start the following program.

50 °C30-60 min1x
95 °C5 min1x
95 °C
55-65 °C
72 °C
10 sec
20 sec
1 min/kb

72 °C5 min1x

3)The optimal time depends on the length of cDNA. Incubation of 60 min is recommended for cDNA fragments of more than 2,000 bp length. The optimal temperature depends on the structural features of the RNA. Increase the temperature to 55 °C for difficult templates with high secondary structure. Note that optimal reaction time and temperature should be adjusted for each particular RNA.
4)A prolonged initial denaturation time of up to 5 min is recommended to inactivate the reverse transcriptase
5)The annealing temperature depends on the melting temperature of the primers.
6)The elongation time depends on the length of the amplicon. A time of 1 min for a fragment of 1,000 bp is recommended.

For optimal specificity and amplification an individual optimization of the recommended parameters may be necessary. Note that optimal reaction times and temperatures should be adjusted for each particular RNA / primer pair.

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