Expression and characterization of the thymidine kinase gene of African swine fever virus.
The thymidine kinase (TK) gene of African swine fever virus (ASFV) was located within the viral genome by using two degenerate oligonucleotide probes derived from sequences of the vaccinia virus and cellular TK genes. The TK gene was mapped within a 0.72-kbp BglII-XhoI fragment (0.242 to 0.246 map units) derived from a 23.9-kbp SalI-B fragment of the ASFV genome. Identification of this region as the ASFV TK gene was confirmed by expression of TK in Escherichia coli and by the synthesis of active TK in a cell-free system programmed with RNA synthesized in vitro. The sequenced gene for TK includes an open reading frame of 588 nucleotides encoding a protein of 196 amino acids. The deduced amino acid sequence shows 32.4% identity with the TK of vaccinia virus.[1]References
- Expression and characterization of the thymidine kinase gene of African swine fever virus. Martin Hernandez, A.M., Tabares, E. J. Virol. (1991) [Pubmed]
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