KAPA2G Fast Multiplex Mix

suitable for PCR, 2 ×


shelf life

≤12 mo.

Quality Level


kit of 1.25 mL (100 x 25 μL rxn; KK5801)
kit of 6.25 mL (500 x 25 μL rxn; KK5802)




2 ×


PCR: suitable

shipped in

dry ice

storage temp.


General description

KAPA2G Fast Multiplex PCR Kits contain a second-generation (2G) enzyme derived through a process of directed evolution. KAPA2G FAST HotStart® DNA Polymerase is an antibody-mediated hot start formulation engineered for higher processivity and speed, offering significantly faster extension rates than wild-type Taq DNA polymerase. In addition to speed, KAPA2G Fast provides higher yields and sensitivity than competitor enzymes, allowing for more uniform multiplexed PCR.
KAPA2G Fast HotStart PCR Kits are designed for fast PCR, in which total reaction times are 20–70% shorter than those of conventional PCR assays performed with wild-type Taq DNA polymerase. This can be achieved without sacrificing reaction performance and does not require specialized PCR consumables or thermocyclers.


KAPA2G Fast Multiplex Mix has been used for:
  • Typing of transgenic organisms
  • Amplification of microsatellites
  • Typing and detection of pathogens
  • Amplification of multiple DNA fragments for single nucleotide polymorphism (SNP) genotyping
  • Semi-quantitative PCR
  • 3-plex PCR

Biochem/physiol Actions

DNA fragments generated with KAPA2G Fast DNA Polymerase have the same characteristics as DNA fragments generated with wild-type Taq DNA polymerase, and may be used for sequencing, restriction enzyme digestion and cloning. Like wild-type Taq, KAPA2G Fast has 5′→3′ polymerase and 5′→3′ exonuclease activities, but no 3′→5′ exonuclease (proofreading) activity. The fidelity of KAPA2G Fast is similar to that of wild-type Taq; it has an error rate of approximately 1 error per 1.7 x 105 nucleotides incorporated. PCR products generated with KAPA2G Fast are 3′-dA-tailed and may be cloned into TA cloning vectors.

Features and Benefits

Improve sensitivity, specificity, and yields
  • Uniform representation of all amplicons
  • Successful multiplex PCR with difficult, GC-rich targets

Increase speed without compromising performance
  • 60% reduction in cycling time
  • Extension times as low as 15 seconds

Quick Notes:
  • KAPA2G Fast Multiplex Mix contains the engineered KAPA2G Fast HotStart DNA Polymerase, for fastand efficient multiplex PCR.
  • The KAPA2G Fast Multiplex Mix contains a buffer optimized for multiplex PCR, with 0.2 mM of each dNTP and 3 mM MgCl2 (at 1X).
  • Use 0.2 μM of each primer, and 10–100 ng of template DNA per reaction.
  • Anneal at 60°C for 30 seconds.
  • Perform extension for 15 sec, and increase for longer amplicons, and/or highly multiplexed reactions.


Each batch of KAPA2G Fast HotStart DNA Polymerase is confirmed to contain <2% contaminating protein (AgilentProtein 230 Assay). KAPA2G Fast Multiplex PCR Kits are subjected to stringent quality control tests, are free of contaminating exo- and endonuclease activity, and meet strict requirements with respect to DNA contaminationlevels.

Preparation Note

Always ensure that the product has been fully thawed and mixed before use. Reagents may be stored at 4°C for short-term use (up to 1 month). Return to -20°C for long-term storage. Provided that the ReadyMix has been handled carefully and not contaminated, the kit is not expected to be compromised if left (unintentionally) at room temperature for a short period of time (up to 3 days). Long-term storage at room temperature and 4°C is not recommended. Please note that reagents stored at temperatures above -20°C are more prone to degradation when contaminated during use, and therefore storage at such temperatures is at the user′s own risk.

Other Notes

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

Legal Information

HOTSTART is a registered trademark of Molecular BioProducts, Inc.

Kit Components Only

Product No.

  • KAPA2G Fast HotStart® DNA Polymerase

  • Reaction buffer

  • dNTPs

  • MgCl2 3 mM


Exclamation markHealth hazard




Acute Tox. 4 Oral - STOT SE 2


12 - Non Combustible Liquids

WGK Germany


Flash Point F

does not flash

Flash Point C

does not flash

Certificate of Analysis

Certificate of Origin

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Kaunisto K M, et al.
Ecology and Evolution, 7(20), 8588-8598 (2017)
Sungsik Kim et al.
Genome biology, 19(1), 158-158 (2018-10-10)
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Precise manipulation of bacterial chromosomes by conjugative assembly genome engineering.
Ma N J, et al.
Nature Protocols, 9(10), 2285-2285 (2014)
Kostas A Papavassiliou et al.
Journal of cellular and molecular medicine, 23(9), 6215-6227 (2019-06-30)
Polycystic Kidney Disease (PKD), which is attributable to mutations in the PKD1 and PKD2 genes encoding polycystin-1 (PC1) and polycystin-2 (PC2) respectively, shares common cellular defects with cancer, such as uncontrolled cell proliferation, abnormal differentiation and increased apoptosis. Interestingly, PC1...
Ilianna Zoi et al.
Breast cancer research : BCR, 21(1), 132-132 (2019-12-05)
ERBB-2 is overexpressed in about 20% of breast cancers (BCs), indicating poor prognosis. The receptor activator of nuclear factor-κB (RANK) pathway is implicated in ERBB-2 (+) BC. The purpose of this study was to elucidate the underlying molecular mechanism of...
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