https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1469-0691.2003.00560.x

Viruses causing gastroenteritis.

Bacteriophage phiYeO3-12 is a lytic phage of Yersinia enterocolitica serotype O:3. The phage receptor is the lipopolysaccharide O chain of this serotype that consists of the rare sugar 6-deoxy-L-altropyranose. A one-step growth curve of phiYeO3-12 revealed eclipse and latent periods of 15 and 25 min, respectively, with a burst size of about 120 PFU per infected cell. In electron microscopy phiYeO3-12 virions showed pentagonal outlines, indicating their icosahedral nature. The phage capsid was shown to be composed of at least 10 structural proteins, of which a protein of 43 kDa was predominant. N-terminal sequences of three structural proteins were determined, two of them showing strong homology to structural proteins of coliphages T3 and T7. The phage genome was found to consist of a double-stranded DNA molecule of 40 kb without cohesive ends. A physical map of the phage DNA was constructed using five restriction enzymes. The phage infection could be effectively neutralized using serum from a rabbit immunized with whole phiYeO3-12 particles. The antiserum also neutralized T3 infection, although not as efficiently as that of phiYeO3-12. phiYeO3-12 was found to share, in addition to the N-terminal sequence homology, several common features with T3, including morphology and nonsubjectibility to F exclusion. The evidence conclusively indicated that phiYeO3-12 is the first close relative of phage T3 to be described.

Bacteriophage φYeO3-12, Specific forYersinia enterocolitica Serotype O:3, Is Related to Coliphages T3 and T7

DNA analysis of small insect iridovirus 6 was performed. Combined exonuclease-restriction endonuclease digestions revealed that all resulting fragments were degraded without preference for any one DNA fragment. Upon denaturation and reannealing of native linear Chilo iridescent virus DNA (158 x 10(6) daltons), duplex DNA circles of a smaller size (140 x 10(6) daltons) with protruding tails were formed.

DNA Analysis of Insect Iridescent Virus 6: Evidence for Circular Permutation and Terminal Redundancy

Isolation and molecular characterization of newly emerging avian reovirus variants and novel strains in Pennsylvania, USA, 2011–2014

/pdf/isolation-and-molecular-characterization-of-newly-emerging-ay6s3ps0q0.pdf

Ultrastructural studies of glutaraldehyde-fixed viruses of the Bunyaviridae were performed by negative-stain electron microscopy. The surface structure of viruses of each genus was compared with that of the other genera and with Hantaan virus, the prototype of a proposed new genus of Bunyaviridae. Viruses of each genus had a surface structure distinct for that genus. In addition, Hantaan virus had a surface structure composed of a grid-like pattern of morphologic subunits not previously described for animal viruses. Careful morphologic studies of suspected Bunyaviridae may be used in considering preliminary generic assignment. This study also supports the assignment of Hantaan-related viruses to a separate generic status within the Bunyaviridae.

Distinction between Bunyaviridae genera by surface structure and comparison with Hantaan virus using negative stain electron microscopy.

The Classification and Nomenclature of Viruses: Summary of Results of Meetings of the International Committee on Taxonomy of Viruses in Strasbourg, August 1981

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The Classification and Nomenclature of Viruses: Summary of Results of Meetings of the International Committee on Taxonomy of Viruses in Strasbourg, August 1981