Cited by 77Animal Disease Management and EpidemiologyRNA and protein synthesis mechanismsVector-Borne Animal Diseases

Modifications of the 5’ untranslated region of foot-and-mouth disease virus after prolonged persistence in cell culture

Escarmís, Cristina, Toja, Miguel, Medina, Miguel, Domingo, Esteban·1992·Virus Research

Abstract

The nucleotide sequence of the 5'-untranslated region (5'UTR) of the genome of foot-and-mouth disease virus (FMDV) R100, rescued after 100 passages of persistently infected BHK-21 cells, has been compared with that of the parental FMDV C-S8c1. The nucleotide sequence divergence between the two viruses in heteropolymeric regions is 1%. The few mutations located at the 5'-most terminal region (S fragment) and at the internal ribosome entry site (IRES) do not appear to affect significantly the tight secondary structure predicted for these RNA segments. Comparison of the 5'UTR of C-S8c1 or R100 RNA with that of other FMDV serotypes and subtypes indicates the presence of block deletions (or insertions) which do not correlate with the serological classification of FMDV. Remarkably, FMDV R100, a virus highly attenuated for mice and cattle, contains a polyribocytidylate (poly C) tract of about 420 nucleotides, 145 residues longer than its parental, virulent FMDV C-S8c1. This long poly C of R100 RNA includes a few uridine residues interspersed at fairly regular intervals. This is the longest highly homopolymeric tract described in a viral genome and, to our knowledge, in any informational biomolecule.

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Crossref · 10.1016/0168-1702(92)90151-x

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Authors
Escarmís, C., Toja, M., Medina, M., & Domingo, E.
Affiliations
Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Domingo, Esteban
Venue
Virus Research
Publisher
Elsevier BV
Published
1992-11
Volume
26
Issue
2
Pages
113-125
ISSN
0168-1702 (ISSN-L)
OpenAlex
W1978205060
Cited by
77
References
49
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2021: 1 · 2019: 3 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 1
FWCI
14.13
Type
journal article
Language
en
Open access
closed
Locations
  • Virus Research (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Funders
Ministerio de Economía y Competitividad
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Animal Disease Management and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Vector-Borne Animal Diseases
Keywords
foot-and-mouth disease virus, 5' untranslated region, viral persistence, internal ribosome entry site, RNA secondary structure, poly(C) tract, attenuated virus, BHK-21 cells
MeSH terms
Animals, Base Sequence, Cell Line, DNA, Viral, Aphthovirus, Cricetinae, Molecular Sequence Data, Nucleic Acid Conformation, Poly C, RNA, Viral, Time Factors, Protein Biosynthesis, Virus Cultivation, Virus Replication

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