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Molecular characterization of a bovine enteric calicivirus: relationship to the Norwalk-like viruses

Liu, B.L., Lambden, P.R., Günther, H., Otto, P., Elschner, M. and Clarke, I.N. (1999) Molecular characterization of a bovine enteric calicivirus: relationship to the Norwalk-like viruses Journal of Virology, 73, (1), pp. 819-825. (PMID:8380940).

Record type: Article

Abstract

Jena virus (JV) is a noncultivatable bovine enteric calicivirus associated with diarrhea in calves and was first described in Jena, Germany. The virus was serially passaged 11 times in colostrum-deprived newborn calves and caused diarrheal disease symptoms at each passage. The complete JV genome sequence was determined by using cDNA made from partially purified virus obtained from a single stool sample. JV has a positive-sense single-stranded RNA genome which is 7,338 nucleotides in length, excluding the poly(A) tail. JV genome organization is similar to that of the human Norwalk-like viruses (NLVs), with three separate open reading frames (ORFs) and a 24-nucleotide sequence motif located at the 5' terminus of the genome and at the start of ORF 2. The polyprotein (ORF 1) consists of 1,680 amino acids and has the characteristic 2C helicase, 3C protease, and 3D RNA polymerase motifs also found in the NLVs. However, comparison of the N-terminal 100 amino acids of the JV polyprotein with those of the group 1 and group 2 NLVs showed a considerable divergence in sequence. The capsid protein (ORF 2) at 519 amino acids is smaller than that of all other caliciviruses. JV ORF 2 was translated in vitro to produce a 55-kDa protein that reacted with postinfection serum but not preinfection serum. Phylogenetic studies based on partial RNA polymerase sequences indicate that within the Caliciviridae JV is most closely related to the group 1 NLVs.

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Published date: January 1999

Identifiers

Local EPrints ID: 194255
URI: http://eprints.soton.ac.uk/id/eprint/194255
ISSN: 0022-538X
PURE UUID: 7dc9363a-1d1d-44da-9ff5-bacab5fd22b2
ORCID for I.N. Clarke: ORCID iD orcid.org/0000-0002-4938-1620

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Date deposited: 26 Jul 2011 12:26
Last modified: 18 Jul 2017 11:27

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Contributors

Author: B.L. Liu
Author: P.R. Lambden
Author: H. Günther
Author: P. Otto
Author: M. Elschner
Author: I.N. Clarke ORCID iD

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