Current Takara Bio one-step RT-qPCR kits being used for COVID-19 detection

Takara Bio has developed one-step probe RT-qPCR kits that are currently being used in the Chinese CDC and the Japanese NIID protocols for COVID-19 detection:

PrimeDirect™ Probe RT-qPCR Mix
Faster, simpler virus detection directly from biological samples

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Detection of inactivated influenza A virus H1N1

Inactivated influenza A virus was spiked into oropharyngeal swab samples, nasopharyngeal swab samples and sputum samples at the concentration of 2 x 100-102 copies/µl, and the detection was performed for each sample type with PrimeDirect™ Probe RT-qPCR Mix. Results were generated by Takara Bio.

Test material Instructions
Oropharyngeal swab Soak the sampled oropharyngeal swab into 200µL PBS buffer, shake for 5 seconds and add 1µl of supernatant to reaction
Nasopharyngeal swab Soak the sampled nasopharyngeal swab in 200µL PBS buffer, shake for 5 seconds and add 1µl of supernatant to reaction
Sputum Directly add 1µl of supernatant to reaction

Reagent Volume
PrimeDirect Probe RT-qPCR Mix (2X) 12.5
Forward Primer (10µM) 0.5
Reverse Primer (10µM) 0.5
TaKaRa qPCR Probe (10µM) 0.5
Test Sample 1
Influenza A virus H1N1 (2×100~102 Copies/µL) 1
RNase Free H2O 9
Total 25

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PrimeDirect™ Probe RT-qPCR Mix enabled the detection of viral RNA at 2 copies/µL from oropharyngeal swab samples. The detection sensitivity from nasopharyngeal swab samples and sputum samples was 20 copies/μL. This product is for research use only. It is not intended for therapeutic or diagnostic procedures.


Compatibility with primer/probe sets
from published COVID-19 detection protocols

The results were generated by Takara Bio by following the publicly available protocols. Our kits have not been validated by third parties and the data does not guarantee the performance in the protocol.

Sensitivity varies depending on the nature of the positive control. The positive control used in Japan NIID protocol was provided by the NIID (National Institute of Infectious disease), and the positive controls used in the other protocols were synthesized RNA prepared by Takara Bio.

Explore industry-leading products that can advance your COVID-19 research:

Cat. # Product Size
RR650A PrimeDirect™ Probe RT-qPCR Mix 200 Rxns
RR650B PrimeDirect™ Probe RT-qPCR Mix 1,000 Rxns
RR651A PrimeDirect™ Probe RT-qPCR Mix, with UNG 200 Rxns
RR651B PrimeDirect™ Probe RT-qPCR Mix, with UNG 1,000 Rxns
RR064A One Step PrimeScript™ RT-PCR Kit (Perfect Real Time) 100 Rxns
RR064B One Step PrimeScript™ RT-PCR Kit (Perfect Real Time) 500 Rxns
RR600S One Step PrimeScript™ III RT-PCR Kit 50 Rxns
RR600A One Step PrimeScript™ III RT-PCR Kit 200 Rxns
RR600B One Step PrimeScript™ III RT-PCR Kit 1,000 Rxns
RR601S One Step PrimeScript™ III RT-qPCR Mix, with UNG 50 Rxns
RR601A One Step PrimeScript™ III RT-qPCR Mix, with UNG 200 Rxns
RR601B One Step PrimeScript™ III RT-qPCR Mix, with UNG 1,000 Rxns

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