Research Article

A Quantitative Real-Time RT-PCR Assay for the Detection of Venezuelan equine encephalitis virus Utilizing a Universal Alphavirus Control RNA

Table 1

Primers and probes selected for equine encephalitis virus-specific quantitative reverse transcription polymerase chain reaction.

TargetPrimer or probeSequence ()Genome positionReference

Eastern equine encephalomyelitis virus (EEEV)EEE9391ACACCGCACCCTGATTTTACA9391–9411 (s)
EEE9459cCTTCCAAGTGACCTGGTCGTC9459–9439 (as)[10]
EEE.9414probeFAM-TGCACCCGGACCATCCGACCT-TAMRA9414–9434 (s)

Western equine encephalomyelitis virus (WEEV)WEE10,248CTGAAAGTCGGCCTGCGTAT10,248–10,267 (s)
WEE 10,314cCGCCATTGACGAACGTATCC10,314–10,295 (as)[10]
WEE 10,271probeFAM-ATACGGCAATACCACCGCGCACC-TAMRA10,271–10,293 (s)

Venezuelan equine encephalomyelitis virus (VEEV) and synthetic calibratorAlphaVIR966FTCCATGCTAATGCYAGAGCGTTTTCGCA151–178 (s)Modified [14]
AlphaVIR966RTGGCGCACTTCCAATGTCHAGGAT248–225 (as)
INEID-VEEV probeFAM-TGATCGARACGGAGGTRGAMCCATCC-TAMRA193–218 (s)This study
VEEV-CoprobeVIC-CTCCGTTCAATAC-MGB-180–192 (s)This study

The synthetic calibrator RNA is specifically detected by the VEEV-Coprobe in combination with the AlphaVIR966F and AlphaVIR966R primers. Y, H, R, and M are designed for degenerative bases, where Y = C/T, H = A/C/T, R = A/G, and M = A/C. Modifications compared to the original sequence as well as novel sequences were indicated in italic font. MGB: minor groove binder; NFQ: Nonfluorescent quencher.