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10. Nucleotide Sequence Analysis of a 30-kb Region of the Bovine Herpesvirus 1 Genome Which Exhibits a Colinear Gene Arrangement with the UL21 to UL4 Genes of Herpes Simplex Virus

Author

ek, &#42 estmír Vl &#41, &#119, Vladimír Bene, Lu, Zhiqiang, Kutish, Gerald F., es, Václav Pa &#41, Rock, Daniel, Letchworth, Geoffrey J., and Schwyzer, Martin

Abstract

We report the nucleotide sequence of the 19-kb HindIII fragment B of bovine herpesvirus 1 (BHV-1) DNA and adjacent parts of the HindIII A and L fragments, which together span a still completely uncharted 30-kb region located between the glycoprotein H gene and the right end of the unique long segment The analysis revealed 17 complete open reading frames (ORFs) and 2 ORFs that were interrupted by potential splice donor and acceptor sites. All of these ORFs exhibited strong amino acid sequence homology to the gene products of other alphaherpesviruses, The BHV-1 ORFs were arranged colinearly with the prototype sequence of herpes simplex virus 1 in the range of the UL21 to UL4 genes. Colinearity was also observed with the genes of betaherpesviruses and gamma herpesviruses, although not all ORFs exhibited clear sequence homology The possible functions of the proteins encoded within the sequenced region are assessed and features found are discussed. Unexpected findings include the following high amino acid sequence conservation among alphaherpesviruses despite large differences in G + C content, ranging from 45% for varicella zoster virus to 72% for BHV-1; high similarity with other UL20 proteins at the predicted structural level in spite of relatively low amino acid homology; and a 2-kb open reading frame overlapping UL19 in the opposite sense and exhibiting high amino acid similarity to the same area of pseudorabies virus. Copyright 1995, 1999 Academic Press

Published
1995
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