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FastStart Universal Probe Master (Rox)

sufficient for 250 reactions, sufficient for 1250 reactions, sufficient for 5000 reactions, suitable for qPCR, suitable for RT-qPCR


Quality Level


sufficient for 1250 reactions
sufficient for 250 reactions
sufficient for 5000 reactions


dNTPs included: no




pkg of 1250 x 20 μL reactions (04913957001)
pkg of 250 x 20 μL reactions (04913949001)
pkg of 5000 x 20 μL reactions (04914058001)


RT-qPCR: suitable
qPCR: suitable


purified DNA

detection method


General description

Hot start protocols have been shown to significantly improve the specificity, sensitivity, and yield of PCR. Heat-labile blocking groups on some of the amino acid residues of FastStart Taq DNA Polymerase make the modified enzyme inactive at room temperature. Therefore, there is no elongation during the period when primers can nonspecifically bind. FastStart Taq DNA Polymerase is activated by removing the blocking groups at a high temperature (i.e., a preincubation step at +95°C).
Universal ready-to-use hot start reaction mix for qPCR and RT-qPCR on all real-time PCR systems requiring normalization with ROX.

FastStart Universal Probe Master (Rox) includes a novel reference dye that enables its use on all real-time PCR instruments requiring normalization with ROX, without modification or adjustments to the specific instrument or protocol. This ready-to-use, 2x concentrated master mix contains all reagents (except primers, probe, and template) needed for running quantitative, real-time DNA-detection assays, including qPCR and two-step qRT-PCR, in the hydrolysis probe detection format. FastStart Universal Probe Master (Rox) generates excellent results on instruments such as the Applied Biosystems 7900 HT Fast Real-Time PCR System or the Applied Biosystems 7500 Real-Time PCR System. This product is not intended for use with the LightCycler® Instruments.


FastStart Universal Probe Master (Rox) has been used:
  • in TaqMan® quantitative real-time polymerase chain reaction (qRT-PCR) reactions for the quantification of endogenous miRNAs, such as MIR376B, MIR376A and MIR181A
  • in reverse transcriptase (RT-PCR) to study tumor necrosis factor (TNF) expression in whole synovial tissue of undifferentiated peripheral inflammatory arthritis (UPIA) patients
  • for the amplification and detection of any DNA or cDNA target, including those that are GC- or AT-rich by quantitativePCR
Combine this master mix with Transcriptor First Strand cDNA Synthesis Kit (Roche) to achieve excellent results in two-step qRT-PCR.

Features and Benefits

  • Increase qPCR sensitivity and specificity.
Produce lower cycle threshold (Ct) values.

  • Use the master mix with any probe-based assay.
Achieve sensitive, specific results in assays with the Universal ProbeLibrary Probes or any other hydrolysis probe.

  • Amplify and detect a broad range of DNA or cDNA targets.
Amplify fragments up to 500 bp long, including those that are GC- or AT-rich.

  • Visualize amplification products on agarose gels.

  • Use robotic pipetting stations to set up qPCR reactions.
Use a master mix that is stable at room temperature during extended reaction setup times.

  • Prevent false positives resulting from carryover contamination.
Use this dUTP-containing mix with Uracil-DNA Glycosylase to eliminate contaminating DNA carried over from previous PCR reactions.


FastStart Universal Probe Master (Rox), 2x concentrated master mix that contains FastStart Taq DNA Polymerase, Reaction Buffer, Nucleotides (dATP, dCTP, dGTP, dUTP), and a reference dye.


Function test: Each lot is tested for performance in qPCR using three templates: a GC–rich template, an AT-rich template, and a long template (approximately 440 bp).

Other Notes

For life science research only. Not for use in diagnostic procedures

Legal Information

FastStart is a trademark of Roche
LightCycler is a registered trademark of Roche
TaqMan is a registered trademark of Roche Molecular Systems, Inc.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

does not flash

Flash Point(C)

does not flash

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Matthew L Hillestad et al.
Human gene therapy, 23(10), 1116-1126 (2012-07-28)
Reporter genes are important tools for assessing vector pharmacology in vivo. Although useful, current systems are limited by (1) the need to generate a new vector for each different reporter, (2) the inability to package reporter genes in small vectors
The essential function for serum response factor in T-cell development reflects its specific coupling to extracellular signal-regulated kinase signaling.
Mylona A, et al.
Molecular and Cellular Biology, 31(2), 267-276 (2011)
Stefano Alivernini et al.
Frontiers in medicine, 5, 186-186 (2018-07-19)
Objectives: To examine synovial tissue (ST) predictors of clinical differentiation in patients with seronegative undifferentiated peripheral inflammatory arthritis (UPIA). Methods: Fourty-two patients with IgA/IgM-Rheumatoid Factor and anti-citrullinated peptide antibodies negative UPIA, naive to Disease-Modifying Anti-Rheumatic Drugs, underwent Gray Scale (GSUS)
Gozde Korkmaz et al.
PloS one, 8(12), e82556-e82556 (2013-12-21)
Autophagy is a vesicular trafficking process responsible for the degradation of long-lived, misfolded or abnormal proteins, as well as damaged or surplus organelles. Abnormalities of the autophagic activity may result in the accumulation of protein aggregates, organelle dysfunction, and autophagy
Robert J Ihry et al.
Nature medicine, 24(7), 939-946 (2018-06-13)
CRISPR/Cas9 has revolutionized our ability to engineer genomes and conduct genome-wide screens in human cells1-3. Whereas some cell types are amenable to genome engineering, genomes of human pluripotent stem cells (hPSCs) have been difficult to engineer, with reduced efficiencies relative


Hot Start PCR

The purpose of Hot Start PCR is to inhibit the PCR reaction in order to reduce nonspecific amplification, prevent the formation of primer dimers, and increase product yields.

Hot Start PCR

The purpose of Hot Start PCR is to inhibit the PCR reaction in order to reduce nonspecific amplification, prevent the formation of primer dimers, and increase product yields.

Related Content

PCR Applications

Polymerase chain reaction (PCR) is a technique for amplifying nucleic acid molecules and is commonly used in many applications, including RT-PCR, hot start PCR, end point PCR and more.

RT-qPCR – Quantitative Reverse Transcription PCR

RT-qPCR, or quantitative reverse transcription PCR, combines the effects of reverse transcription and quantitative PCR or real-time PCR to amplify and detect specific targets. RT-qPCR has a variety of applications including quantifying gene expression levels, validating RNA interference (RNAi), and detecting pathogens such as viruses.

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