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Infect Genet Evol. 2015 Jun;32:425-31. doi: 10.1016/j.meegid.2015.04.005. Epub 2015 Apr 9.

Genome analysis of a novel, highly divergent picornavirus from common kestrel (Falco tinnunculus): the first non-enteroviral picornavirus with type-I-like IRES.

Author information

1
Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary.
2
Infection and Immunity Division, Roslin Institute, University of Edinburgh, Edinburgh, UK.
3
Department of General Zoology, Faculty of Sciences, University of Pécs, Hungary.
4
Department of Pathophysiology, University of Pécs Medical Center, Hungary; Hungarian Nature Research Society (HuNaReS), Ajka, Hungary.
5
Blood Systems Research Institute, San Francisco, CA, USA; University of California, San Francisco, CA, USA.
6
Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary. Electronic address: reuter.gabor@ddr.antsz.hu.

Abstract

Although the number of identified avian-borne picornaviruses (family Picornaviridae) is continuously increasing there remains several species-rich avian host groups, such as the order Falconiformes (with 290 bird species) from which picornaviruses have not been identified. This study reports the first complete genome of a novel, highly divergent picornavirus, named as Falcovirus A1 (KP230449), from the carnivorous bird, the common kestrel (Falco tinnunculus, order Falconiformes). Falcovirus A1 has the longest 3D(RdRp) genome region and distant phylogenetic relationship to the Hepatitis A virus 1 (Hepatovirus) and Avian encephalomyelitis virus 1 (Tremovirus). It has a type-I (enterovirus-like) IRES in the 5'UTR - identified for the first time among avian-borne picornaviruses suggesting that type-I IRES is not restricted only to enteroviruses and providing further evidence of mosaicism of this region among different picornavirus genera.

KEYWORDS:

Avian; Enterovirus; Falcon; IRES; Kestrel; Picornavirus

PMID:
25864424
DOI:
10.1016/j.meegid.2015.04.005
[Indexed for MEDLINE]

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