Selected article for: "cellular process and RNA synthesis"
Author: Nogales, Aitor; Galán, Carmen; Márquez-Jurado, Silvia; García-Gallo, Mónica; Kremer, Leonor; Enjuanes, Luis; Almazán, Fernando
Title: Immunogenic characterization and epitope mapping of transmissible gastroenteritis virus RNA dependent RNA polymerase
  • Cord-id: yxciyb17
  • Document date: 2011_4_12
    • ID: yxciyb17
    Snippet: Coronavirus RNA synthesis is a sophisticated process performed by a viral multienzymatic replicase complex, together with cellular factors. A key enzyme of this replication complex is the RNA dependent RNA polymerase (RdRp). To study the replication of coronavirus genome, six monoclonal antibodies (mAbs) specific for transmissible gastroenteritis virus (TGEV) RdRp were generated and characterized. His-tagged RdRp was expressed in baculovirus, purified and used as immunogen to produce mAbs. The T
    Document: Coronavirus RNA synthesis is a sophisticated process performed by a viral multienzymatic replicase complex, together with cellular factors. A key enzyme of this replication complex is the RNA dependent RNA polymerase (RdRp). To study the replication of coronavirus genome, six monoclonal antibodies (mAbs) specific for transmissible gastroenteritis virus (TGEV) RdRp were generated and characterized. His-tagged RdRp was expressed in baculovirus, purified and used as immunogen to produce mAbs. The TGEV RdRp was recognized by these mAbs in the context of virus infection by immunofluorescence analysis and Western blot. Epitope mapping by Pepscan indicated that RdRp mAbs recognized four non-overlapping linear epitopes located in a 62-amino acid region of the N-terminal domain, suggesting that this region may constitute an immunodominant domain. The availability of TGEV RdRp mAbs will be instrumental to study coronavirus replication and to analyze the function of RdRp in pathogenesis.

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