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LightCycler^® TaqMan^® Master is a ready-to-use reaction mix designed for the TaqMan^® detection format using the LightCycler^® Carousel-Based System.
It contains FastStart polymerase for a \"Hot Start\" PCR, which has been shown to significantly improve the specificity and sensitivity of PCR by minimizing the formation of non-specific amplification products [Chou Q, et al, 1992 and Kellogg DE, et al, 1994]. FastStart Taq DNA Polymerase is a chemically modified form of thermostable recombinant Taq DNA polymerase that is inactive at +15 to +25°C and below. The enzyme is active only at high temperatures, where primers no longer bind non-specifically. The enzyme is completely activated (by removal of blocking groups) in a single pre-incubation step (95°C, 10 minutes) before cycling begins. Activation does not require the extra handling steps typical of other \"Hot Start\" techniques.
The LightCycler^® TaqMan^® Master provides convenience, excellent performance, reproducibility, and minimal contamination risk. All you have to supply is PCR primers, a detection probe and your template DNA.


Test Principle

Hydrolysis probe assays, also called TaqMan^® Assays, use a single probe containing two labels, a fluorescent reporter dye and a fluorescent quencher. While the probe is intact, the quencher is close to the reporter dye and suppresses the reporter fluorescence via fluorescence resonance energy transfer (FRET). When the probe is hybridized to the target sequence, the 5'-nuclease activity of the polymerase can cleave the hydrolysis probe, separating the reporter and the quencher. With a rising amount of target sequence during PCR, more probe is cleaved and the fluorescence signal of the unquenched reporter dye increases.

Two-Step RT-PCR

The LightCycler^® TaqMan^® Master can also be used to perform two-step RT-PCR.
In two-step RT-PCR, the reverse transcription of RNA into cDNA is separated from the other reaction steps and is performed outside the LightCycler^® Carousel-Based System. Subsequent amplification and online monitoring is performed according to the standard LightCycler^® Carousel-Based System procedure, using cDNA as starting sample material.
One of the following reagents is required for reverse transcription of RNA into cDNA:

• Transcriptor Reverse Transcriptase
• Transcriptor First Strand cDNA Synthesis Kit Transcriptor High Fidelity cDNA Synthesis Kit Transcriptor Universal cDNA Master
• First Strand cDNA Synthesis Kit for RT-PCR (AMV)

Synthesis of cDNA is performed according to the detailed instructions provided with the cDNA synthesis reagent.", "Language": "en", "Country": "XG", "Code": "Principle" }, { "Name": "Content", "Value": "

Vial / Bottle	Cap	Label	Function	Catalog Number	Content
1a	white	Enzyme	After pipetting 10 μl from vial 1a into one vial 1b: Ready-to-use hot start reaction mix Contains FastStart Taq DNA Polymerase, reaction buffer, MgCl2 and dNTP mix (with dUTP instead of dTTP).	04 535 286 001	1 vial
04 735 536 001	5 vials
1b	red	Reaction Mix, 5x conc.	04 535 286 001	3 vials (for 3 × 128 μl)
04 735 536 001	15 vials (for 15 × 128 μl)
2	colorless	Water, PCR grade	To adjust the final reaction volume.	04 535 286 001	2 vials, 1 ml each
04 735 536 001	7 vials, 1 ml each

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