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Kaján, G. L., Lipiec, A., Bartha, D., Allard, A. & Arnberg, N. (2018). A multigene typing system for human adenoviruses reveals a new genotype in a collection of Swedish clinical isolates. PLoS ONE, 13(12), Article ID e0209038.
Open this publication in new window or tab >>A multigene typing system for human adenoviruses reveals a new genotype in a collection of Swedish clinical isolates
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2018 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 13, no 12, article id e0209038Article in journal (Refereed) Published
Abstract [en]

Human adenoviruses (HAdVs) are common pathogens that can cause respiratory, gastrointestinal, urogenital, and ocular infections. They are divided into seven species containing 85 genotypes. Straightforward typing systems might help epidemiological investigations. As homologous recombination frequently shapes the evolution of HAdVs, information on a single gene is seldom sufficient to allow accurate and precise typing, and complete genome-based methods are recommended. Even so, complete genome analyses are not always easy to perform for practical reasons, and in such cases a multigene system can provide considerably more information about the strain under investigation than single-gene-based methods. Here we present a rapid, generic, multigene typing system for HAdVs based on three main deterministic regions of these viruses. Three PCR systems were used to amplify the genes encoding the DNA polymerase, the penton base hypervariable Arg-Gly-Asp-containing loop, and the hexon loop 1 (hypervariable region 1–6). Using this system, we typed 281 clinical isolates, detected members of six out of seven HAdV species (Human mastadenovirus AF), and could also detect not only divergent strains of established types but also a new recombinant strain with a previously unpublished combination of adenovirus genomes. This strain was accepted by the Human Adenovirus Working Group as a novel genotype: HAdV-86. Seven strains that could not be typed with sufficient accuracy were also investigated using a PCR based on part of the fiber gene. By analysis of corresponding sequences of the 86 known HAdV genotypes, we determined that the proposed typing system should be able to distinguish all non-recombinant types, and with additional fiber information, all known HAdV genotypes.

Place, publisher, year, edition, pages
Public Library Science, 2018
National Category
Microbiology in the medical area
Identifiers
urn:nbn:se:umu:diva-155105 (URN)10.1371/journal.pone.0209038 (DOI)000453248000040 ()30550551 (PubMedID)
Available from: 2019-01-08 Created: 2019-01-08 Last updated: 2019-01-08Bibliographically approved
Kaján, G. L., Kajon, A. E., Pinto, A. C., Bartha, D. & Arnberg, N. (2017). The complete genome sequence of human adenovirus 84, a highly recombinant new Human mastadenovirus D type with a unique fiber gene. Virus Research, 242, 79-84
Open this publication in new window or tab >>The complete genome sequence of human adenovirus 84, a highly recombinant new Human mastadenovirus D type with a unique fiber gene
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2017 (English)In: Virus Research, ISSN 0168-1702, E-ISSN 1872-7492, Vol. 242, p. 79-84Article in journal (Refereed) Published
Abstract [en]

A novel human adenovirus was isolated from a pediatric case of acute respiratory disease in Panama City, Panama in 2011. The clinical isolate was initially identified as an intertypic recombinant based on hexon and fiber gene sequencing. Based on the analysis of its complete genome sequence, the novel complex recombinant Human mastadenovirus D (HAdV-D) strain was classified into a new HAdV type: HAdV-84, and it was designated Adenovirus D human/PAN/P309886/2011/84[P43H17F84]. HAdV-D types possess usually an ocular or gastrointestinal tropism, and respiratory association is scarcely reported. The virus has a novel fiber type, most closely related to, but still clearly distant from that of HAdV-36. The predicted fiber is hypothesised to bind sialic acid with lower affinity compared to HAdV-37. Bioinformatic analysis of the complete genomic sequence of HAdV-84 revealed multiple homologous recombination events and provided deeper insight into HAdV evolution.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Human adenovirus, Complete genome, HAdV-84, Homologous recombination, HAdV-D, Acute respiratory disease
National Category
Infectious Medicine
Identifiers
urn:nbn:se:umu:diva-142911 (URN)10.1016/j.virusres.2017.09.012 (DOI)000415777800011 ()28923509 (PubMedID)
Available from: 2017-12-13 Created: 2017-12-13 Last updated: 2018-06-09Bibliographically approved
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Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-8213-8238

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