Minor groove binder probe real-time RT-PCR for detection of foot-and mouth disease virus in Egypt

Document Type : Original Article

Author

Department of Foot and Mouth Disease, Veterinary Serum and Vaccine Research Institute, Abbassia, Cairo, Egyp PO Box 131. Postal No.11381.

Abstract

Shorter, more specific minor groove binders (MGBs) probes are dsDNA-binding agents attached to the 3' end of TaqMan probes that could be designed strictly to invariant region. Application and assessing of a new trend for viral detection in Egypt depending on MGB probe real-time RT-PCR (rRT-PCR) was applied on local FMDV serotypes O, A, and SAT2. Moreover, FMDV O were detected using two serotype specific primer sets by SYBR Green real-time RT-PCR assaying rapid formats. The limit of detection of diluted RNAs using MGB probe rRT-PCR assay reached to ≤ 6 fg/ul. Besides, high specificity of the former assay was clear. In contrary, the employing of FMDV O specific primer pairs in SYBR Green real-time RT-PCR showed a relative less sensitivity and specificity, particularly one of them displayed a very poor performance. Lastly, the local financial cost of MGB probe is considered the obvious hinder.

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