Volume 27, Number 7—July 2021
Research
Multiplex Real-Time Reverse Transcription PCR for Influenza A Virus, Influenza B Virus, and Severe Acute Respiratory Syndrome Coronavirus 2
Table 1
Primer or probe |
Oligonucleotide sequence, 5′→3′ |
Target gene or region |
Nucleotide position† |
Concentration, µM‡ |
---|---|---|---|---|
InfA | ||||
Forward primer 1 | CAA GAC CAA TCY TGT CAC CTC TGAC | Matrix protein | 143–167 | 3.33 |
Forward primer 2 | CAA GAC CAA TYC TGT CAC CTY TGAC | 143–167 | 3.33 | |
Reverse primer 1 | GCA TTY TGG ACA AAV CGT CTA CG | 248–226 | 5 | |
Reverse primer 2 |
GCA TTT TGG ATA AAG CGT CTA CG |
248–226 |
1.67 |
|
InfB | ||||
Forward primer | TCC TCA AYT CAC TCT TCG AGC G | Nonstructural protein | 746–767 | 6.67 |
Reverse primer |
CGG TGC TCT TGA CCA AAT TGG |
848–828 |
6.67 |
|
RP | ||||
Forward primer | AGA TTT GGA CCT GCG AGC G | Human RNase P | 50–67 | 6.67 |
Reverse primer |
GAG CGG CTG TCT CCA CAA GT |
50–67 |
6.67 |
|
SARS-CoV-2 | ||||
Forward primer | CTG CAG ATT TGG ATG ATT TCT CC | Nucleoprotein–3′ untranslated region | 29463–29485 | 6.67 |
Reverse primer |
CCT TGT GTG GTC TGC ATG AGT TTA G |
29554–29530 |
6.67 |
|
InfA probe§ |
TGC AGT CCT /ZEN/ CGC TCA CTG GGC ACG |
Matrix protein |
224–201 |
1.67 |
InfB probe¶ |
CCA ATT CGA /ZEN/ GCA GCT GAA ACT GCG GTG |
Nonstructural protein |
790–817 |
1.67 |
RP probe# |
TTC TGA CCT /TAO/ GAA GGC TCT GCG CG |
Human RNase P |
71–93 |
1.67 |
SARS-CoV-2 probe** | ATT GCA ACA /TAO/ ATC CAT GAG CAG TGC TGA CTC | Nucleoprotein–3′ untranslated region | 29491–29520 | 1.67 |
*Multiplex real-time reverse transcription PCR for influenza A virus, influenza B virus, and SARS-CoV-2. InfA, influenza A; InfB, influenza B; RP, RNase P; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2. †Nucleotide positions are indicated as location in the coding domain sequences for the ribonuclease P/MRP subunit p30 (human; GenBank accession no. NM-004613), M gene (GISAID accession no. EPI 1312561) of A/Brisbane/02/2018-H1N1 (InfA), NS gene (GenBank accession no. CY232070) of B/Colorado/06/2017 (InfB), or Wuhan-Hu-1 (SARS-CoV-2; GenBank accession no. NC045512). ‡Multiplex assay is supplied with a tube of primers mixed in 1.5 mL aqueous solution and a tube of probes mixed in 1.5 mL aqueous solution. §Probe labeled with the reporter molecule 6-carboxyfluorescein at the 5′ end, a ZEN quencher between nt 9 and 10, and an Iowa Black FQ quencher at the 3′ end (Integrated DNA Technologies, Inc., https://www.idtdna.com). Probe and primer sequences are identical to InfA sequences used by the CDC Human Influenza Real-Time RT-PCR Diagnostic Panel [510(k) no. K200370] (9). ¶Probe labeled with Yakima Yellow reporter at the 5′ end, a ZEN quencher between nt 9 and 10, and an Iowa Black FQ quencher at the 3′ end (Integrated DNA Technologies, Inc.). Probe and primer sequences identical to InfB sequences used by the CDC Human Influenza Virus Real-Time RT-PCR Detection and Characterization Panel [510(k) no. K200370] (9). #Probe labeled with the CY5 reporter at the 5′ end, a TAO quencher between nt 9 and 10, and an Iowa Black RQ quencher at the 3′ end (Integrated DNA Technologies, Inc.). Probe and primer sequences identical to RP sequences in the CDC Human Influenza Virus Real-Time RT-PCR Detection and Characterization Panel [510(k) no. K200370]. **Probe labeled with the Texas Red-XN reporter at the 5′ end, a TAO quencher between nt 9 and 10, and an Iowa Black RQ quencher at the 3′ end (Integrated DNA Technologies, Inc.)
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1These first authors contributed equally to this article.
2These senior authors contributed equally to this article.