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Open AccessJournal ArticleDOI

A Virus with a Bisegmented Double-stranded RNA Genome in Rat (Oryzomys nigripes) Intestines

H. G. Pereira, +3 more
- 01 Nov 1988 - 
- Vol. 69, Iss: 11, pp 2749-2754
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TLDR
Examination of the intestinal contents of free-living Oryzomys nigripes rats by PAGE revealed two sharply defined bands that could be stained by ethidium bromide or by silver nitrate with comparable intensities, suggesting that these particles represent an as yet undescribed virus with a bisegmented double-stranded RNA genome, for which the name 'picobirnavirus' is proposed.
Abstract
Examination of the intestinal contents of free-living Oryzomys nigripes rats by PAGE revealed two sharply defined bands that could be stained by ethidium bromide or by silver nitrate with comparable intensities. The molecules forming these bands were susceptible to digestion by pancreatic RNase A but not by RNase T1 or by DNase I. Their lengths were estimated to be about 2.6 and 1.5 kbp, respectively, by comparison with rotavirus SA11 genome segments. They cosedimented in CsCl gradients at a density of 1.39 to 1.40 g/ml, together with uniform particles approximately 35 nm in diameter with indistinct surface structure. It is suggested that these particles represent an as yet undescribed virus with a bisegmented double-stranded RNA genome, for which the name 'picobirnavirus' is proposed.

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Book ChapterDOI

Waterborne Transmission of Enteric Viruses and Their Impact on Public Health

TL;DR: The present chapter will focus on viral pathogens shown to be transmitted through water, and provides an overview of viruses that had not been a concern for waterborne transmission in the past, but that may represent potentially emerging waterborne pathogens due to their occurrence and persistence in water environments.
Journal ArticleDOI

Picobirnaviruses encode a protein with repeats of the ExxRxNxxxE motif

TL;DR: This study shows that the three ORF1 sequences available in databases and representing three phylogenetically distant picobirnaviruses encode proteins of various sizes harbouring a particular sequence motif (ExxRxNxxxE) repeated four to ten times, depending on the virus species.
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Molecular detection and characterization of picobirnaviruses in piglets with diarrhea in Thailand.

TL;DR: The findings indicate that PBV infection is common in piglets with and without diarrhea in Northern Thailand, and remarkably high similarity between strains is revealed.
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Detection of double-stranded RNA viruses in fecal samples of dogs with gastroenteritis in Rio de Janeiro, Brazil

TL;DR: Das amostras positivas para PBV, duas foram obtidas de filhotes e uma foi positiva para parvovirus canino, o primeiro relato de virus com genoma bisegmentado em caes com diarreia no Estado do Rio de Janeiro.
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Molecular characterization of a genetically diverse bubaline picobirnavirus strain, India.

TL;DR: This unique bubaline PBV isolate comprised a separate lineage away from previously reported GG I and GG II PBV sequences, providing evidence that thisPBV isolate may represent an emerging heterogeneous group of virus with a new lineage.
References
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Journal ArticleDOI

Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4

TL;DR: Using an improved method of gel electrophoresis, many hitherto unknown proteins have been found in bacteriophage T4 and some of these have been identified with specific gene products.
Journal Article

Cleavage of structural proteins during the assemble of the head of bacterio-phage T4

U. K. Laemmli
- 01 Jan 1970 - 
TL;DR: Using an improved method of gel electrophoresis, many hitherto unknown proteins have been found in bacteriophage T4 and some of these have been identified with specific gene products as mentioned in this paper.
Journal ArticleDOI

Rapid diagnosis of rotavirus infection by direct detection of viral nucleic acid in silver-stained polyacrylamide gels.

TL;DR: A rapid simple technique based on the sensitive detection of rotavirus double-stranded RNA genome segments separated in polyacrylamide gels, which is comparable with that of electron microscopy or enzyme-linked immunosorbent assay.
Journal ArticleDOI

Biophysical and biochemical characterization of five animal viruses with bisegmented double-stranded RNA genomes.

TL;DR: Infectious pancreatic necrosis virus of fish, infectious bursal disease virus of chickens, Tellina virus and oyster virus of bivalve molluscs, and drosophila X virus of Drosophila melanogaster are naked icosahedral viruses with an electron microscopic diameter of 58 to 60 nm as mentioned in this paper.

Biophysical andBiochemical Characterization ofFiveAnimal Viruses withBisegmented Double-Stranded RNA Genomes

Hermann Becht
TL;DR: Tryptic peptide comparisons of 125I-labeled virion proteins showed that five viruses are different from each other, although there was considerable overlap in the peptide maps of the three aquatic viruses, indicting a degree of relatedness.
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