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Secondary structure of the 5'-noncoding region of border: Disease virus genome RNAs

VILCEK S
Veterinarni Medicina 42, 1997, 125-128

The computer predicted secondary structures from the 5'-NC genome region of four border disease virus (BDV) strains collected from sheep in England and Scotland over a period 1976-1986 were prepared. The FOLD program from GCG sequence analysis software package was used for the analysis of a 243 bp RNA fragment. Two typical shapes of secondary structures were observed which contained multiple imperfect stem-loop motifs. The shape of those structures exactly fit with the grouping of BDV strains to two phylogenetic groups. Secondary structures are typical only of BDV strains and they are different from the structures prepared for NADL (BVDV) and Alfort (CSFV) strains


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