•  NACRES NA.55



Quality Level   100
shelf life   ≤12 mo.
packaging   kit of 1 mL (100 x 20 μL rxn; KK4600)
  kit of 10 mL (1000 x 20 μL rxn; KK4602)
  kit of 5 mL (500 x 20 μL rxn; KK4601)
  kit of 50 mL (5000 x 20 μL rxn; KK4618)
mfr. no.   Roche
shipped in   dry ice
storage temp.   −20°C


General description

KAPA SYBR FAST qPCR Kits contain the first DNA polymerase engineered via directed evolution to be more tolerant of SYBR Green I dye inhibition.

The improved robustness, processivity, and speed of KAPA SYBR FAST qPCR Kits result in consistently high amplification efficiencies enabling more accurate relative quantification for gene expression analysis. KAPA SYBR FAST qPCR Kits, developed to perform optimally in stringent real-time PCR reaction conditions, exhibit dramatic improvements to signal-to-noise ratio (fluorescence), quantification cycle (Cq), linearity, and sensitivity.

Other Notes

For Research Use Only. Not for use in diagnostic procedures.


KAPA SYBR® FAST has been used in:
• Gene expression
• Gene knockdown validation
• Microarray validation
• ChIP analysis
• Low copy detection
• Absolute quantification of NGS libraries
• Quantitative real-time PCR

Features and Benefits

Quantitate changes in gene expression more accurately
• High reaction efficiency between 95 - 105% improves accuracy and reproducibility.
• Unbiased efficiency across a wide range of GC contents and amplicon lengths.

Detect low copy and difficult targets consistently
• Improved processivity results in earlier Cq scores.
• Higher fluorescence detection across varying AT- and GC-rich targets.
• Novel enzyme is resistant to SYBR inhibition.

Complete real-time PCR runs in just 40 minutes
• 55% shorter run times with fast cycling protocol.
• Maintain high performance when switching from standard to fast protocols.

Quick Notes:
• This kit contains an engineered enzyme optimized for qPCR using SYBR Green I dye chemistry.
• The 2X master mix contains a proprietary buffer. Together with the novel enzyme, this improves amplification efficiency of both GC- and AT-rich targets.
• 20 sec initial denaturation at 95°C is sufficient for enzyme activation. When working with complex templates, an initial denaturation of 3 min is recommended.
• For 3-step cycling, use 20 sec for primer annealing and 1 sec for extension/data acquisition at 72°C.
• Do not exceed 25 μL reaction volumes.


Kits include KAPA SYBR FAST qPCR Master Mix (2X), which contains KAPA SYBR FAST DNA Polymerase, reaction buffer, dNTPs, SYBR Green I dye, and MgCl2 at a final concentration of 2.5 mM.Where noted, Master Mixes contain instrument-specific reference dyes, while the Universal kit includes ROX High and ROX Low (both 50X) separately.


All kit components are subjected to stringent functional quality control, are free of detectable contaminating exo and endonuclease activity, and meet strict requirements with respect to DNA contamination.

Preparation Note

Always ensure that components have been fully thawed and thoroughly mixed before use. KAPA SYBR FAST qPCR Master Mix (2X) may not freeze solidly, even when stored at -20°C.

The SYBR Green I dye contained in KAPA SYBR FAST qPCR Master Mix (2X) and ROX/fluorescein dyes (depending on kit configuration) are light sensitive. Exposure to direct light for an extended period of time will result in loss of fluorescent signal intensity.

KAPA SYBR FAST qPCR Master Mix (2X) is stable through 30 freeze-thaw cycles. Ensure that all reagents are stored protected from light at -20°C when not in use. When protected from light, reagents are stable in the dark at 4°C for at least one week and may be stored at this temperature for short-term use, provided that they do not become contaminated with microbes and/or nucleases.

Legal Information

SYBR is a registered trademark of Life Technologies

Safety & Documentation

Safety Information

GHS08  GHS08
Signal word 
Hazard statements 
NONH for all modes of transport


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


Directed Evolution

Proteins, the functional workhorses of living organisms, are composed of chains of interlinked amino acids that together form peptides and ultimately dictate the three-dimensional structure and funct...


What are the recommended applications for KAPA SYBR® FAST qPCR Master Mix (2X) Kits? Gene expression analysis
Keywords: Amplification, Chromatin immunoprecipitation, Gas chromatography, Gene expression, Gene knockdown, High performance liquid chromatography, Microarray Analysis, Nucleic acid annealing, Nucleic acid denaturation, Polymerase chain reaction, Polymerase chain reaction - quantitative, Purification, Sequencing, Size-exclusion chromatography, Transcription

Kapa Biosystems qPCR Reagents and Kits

Quantitative PCR (qPCR) and qRT-PCR reactions require reagents that are accurate and reliable. Kapa Biosystems qPCR and qRT-PCR reagents and kits are designed to provide consistent results for even t...
Keywords: Amplification, DNA purification, Digestions, Gas chromatography, Gene expression, Gene knockdown, Genetic, Melting, Methylations, Microarray Analysis, Nucleic acid annealing, Nucleic acid denaturation, Polymerase chain reaction, Polymerase chain reaction - quantitative, Purification, Size-exclusion chromatography

Universal ProbeLibrary System Technology

UPL is based on only 165 short hydrolysis probes. They are labeled at the 5' end with fluorescein (FAM) and at the 3' end with a dark quencher dye.
Keywords: Cancer, Gene expression, Melting, Polymerase chain reaction, Polymerase chain reaction - quantitative

Peer-Reviewed Papers


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