Table 1. Oligonucleotide primers and probes for the real time PCR to detect target pathogens and an internal control.
Pathogen | Target gene | Type | Sequences (5’-3’) | Tm (°C) | Product size (bp) | Reference |
---|---|---|---|---|---|---|
K. pneumoniae | yphG | F. primer | GAGTTAGGGAAACGAACATTGTGIIIIIGGCAGTGCTC | 58 | 137 | [16] |
R. primer | TCTCTATCGGACAGACGTCGGIIIIIAAAGAGGTTC | 59 | ||||
probe | aFAM-TTCATTGGCATCATCACTTAGCGAC | 65.1 | ||||
P. aeruginosa | regA | F. primer | GCTTCATCGACAGCATCGGIIIIIACTGACGCCA | 58.1 | 111 | [17] |
R. primer | CGGCTTTTTCTCTGGTCTGTGIIIIIGTTCCGCTGT | 59.1 | ||||
probe | bHEX-AACACAAACGCACTCGGAAAAATCG | 68.5 | ||||
S. aureus | nuc | F. primer | GATGGCTATCAGTAATGTTTCGAIIIIICAATACRCAA | 56.3 | 213 | [18] |
R. primer | GTCGCAGGTTCTTTATGTAATTTTIIIIITGAAGTTGCA | 57.4 | ||||
probe | cTexas red-CAAGTCTAAGTAGCTCAGCARATGCATCA | 67.1 | ||||
M. catarrhalis | copB | F. primer | ATTCGTGGCATGGGTCATAAT | 58.5 | 182 | [9] |
R. primer | GTAACAATCGCACCRTTGGTT | 56.8~59.3 | ||||
probe | dCy5.5-CACCAAGGTCGCTTTATGCTAGACCC | 68.7 | ||||
Internal control | HBB | F. primer | GGCATAAAAGTCAGGGCAGAIIIIICTATTGCT | 56.9 | 158 | - |
R. primer | CCAACTTCATCCACGTTCACCIIIIICCACAGGG | 59.0 | ||||
probe | eCy5-CCTGAGGAGAAGTCTGCCGTTACTGC | 68.8 |
Probes were labeled with FAM, HEX, Texas red, Cy5.5, and Cy5 and detected at 520, 556, 616, 694, and 669 nm, respectively. All the probes were had BHQ as a quencher at 3’ end.
Abbreviations: Tm, melting temperature; F. primer, forward primer; R. primer, reverse primer; probe, fluorescently labeled primer; R: A or G.