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Bovine viral diarrhea virus: characterization of a cytopathogenic defective interfering particle with two internal deletions.

ABSTRACT: Molecular characterization of bovine viral diarrhea virus pair 13 revealed that isolate CP13 is composed of a cytopathogenic (cp) defective interfering particle (DI13) and a noncytopathogenic (noncp) helper virus. The DI13 genome possesses two internal deletions of 1,611 and 3,102 nucleotides. Except for a small fragment of the gene coding for glycoprotein E1, all structural protein genes are deleted together with most of the Npro gene, the region coding for nonstructural proteins p7 and NS2. While the amino terminus of NS3 seems to be strictly conserved for all other cp bovine viral diarrhea viruses, NS3 of DI13 is amino-terminally truncated and fused to 23 amino acids derived from Npro and E1. Characterization of the DI-helper virus system revealed a striking discrepancy between RNA production and generation of infectious viruses.

SUBMITTER: Kupfermann H

PROVIDER: S-EPMC190898 | biostudies-other | 1996 Nov

REPOSITORIES: biostudies-other

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Bovine viral diarrhea virus: characterization of a cytopathogenic defective interfering particle with two internal deletions.

Kupfermann H H Thiel H J HJ Dubovi E J EJ Meyers G G

Journal of virology 19961101 11

Molecular characterization of bovine viral diarrhea virus pair 13 revealed that isolate CP13 is composed of a cytopathogenic (cp) defective interfering particle (DI13) and a noncytopathogenic (noncp) helper virus. The DI13 genome possesses two internal deletions of 1,611 and 3,102 nucleotides. Except for a small fragment of the gene coding for glycoprotein E1, all structural protein genes are deleted together with most of the Npro gene, the region coding for nonstructural proteins p7 and NS2. Wh ...[more]

PMID: 8892949

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