Table 1

Primers and probes, real-time RT-PCR for 2019 novel coronavirus

Assay/use Oligonucleotide Sequencea Concentrationb
RdRP gene RdRp_SARSr-F GTGARATGGTCATGTGTGGCGG Use 600 nM per reaction
RdRp_SARSr-P2 FAM-CAGGTGGAACCTCATCAGGAGATGC-BBQ Specific for 2019-nCoV, will not detect SARS-CoV.

Use 100 nM per reaction and mix with P1
RdRP_SARSr-P1 FAM-CCAGGTGGWACRTCATCMGGTGATGC-BBQ Pan Sarbeco-Probe will detect 2019-nCoV, SARS-CoV and bat-SARS-related CoVs.

Use 100 nM per reaction and mix with P2
RdRp_SARSr-R CARATGTTAAASACACTATTAGCATA Use 800 nM per reaction
E gene E_Sarbeco_F ACAGGTACGTTAATAGTTAATAGCGT Use 400 nM per reaction
E_Sarbeco_P1 FAM-ACACTAGCCATCCTTACTGCGCTTCG-BBQ Use 200 nM per reaction
E_Sarbeco_R ATATTGCAGCAGTACGCACACA Use 400 nM per reaction
N gene N_Sarbeco_F CACATTGGCACCCGCAATC Use 600 nM per reaction
N_Sarbeco_P FAM-ACTTCCTCAAGGAACAACATTGCCA-BBQ Use 200 nM per reaction
N_Sarbeco_R GAGGAACGAGAAGAGGCTTG Use 800 nM per reaction

a W is A/T; R is G/A; M is A/C; S is G/C. FAM: 6-carboxyfluorescein; BBQ: blackberry quencher.

b Optimised concentrations are given in nanomol per litre (nM) based on the final reaction mix, e.g. 1.5 µL of a 10 µM primer stock solution per 25 µL total reaction volume yields a final concentration of 600 nM as indicated in the table.