title: Genome analysis of a novel, highly divergent picornavirus from common kestrel (Falco tinnunculus): the first non-enteroviral picornavirus with type-I-like IRES.
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.
authors: Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary.
authors: Ákos
authors: Á
authors: Boros
authors: Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary.
authors: Péter
authors: P
authors: Pankovics
authors: Infection and Immunity Division, Roslin Institute, University of Edinburgh, Edinburgh, UK.
authors: Peter
authors: P
authors: Simmonds
authors: Department of General Zoology, Faculty of Sciences, University of Pécs, Hungary.
authors: Edit
authors: E
authors: Pollák
authors: Department of Pathophysiology, University of Pécs Medical Center, Hungary; Hungarian Nature Research Society (HuNaReS), Ajka, Hungary.
authors: Róbert
authors: R
authors: Mátics
authors: Blood Systems Research Institute, San Francisco, CA, USA; University of California, San Francisco, CA, USA.
authors: Tung Gia
authors: TG
authors: Phan
authors: Blood Systems Research Institute, San Francisco, CA, USA; University of California, San Francisco, CA, USA.
authors: Eric
authors: E
authors: Delwart
authors: 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.
authors: Gábor
authors: G
authors: Reuter
mesh_terms: D020121:5' Untranslated Regions; D000818:Animals; D001483:Base Sequence; D046093:Falconiformes / Q000821:virology*; D016679:Genome, Viral; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D010802:Phylogeny; D010849:Picornaviridae / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D012367:RNA, Viral / Q000235:genetics; D017423:Sequence Analysis, RNA; D014764:Viral Proteins / Q000235:genetics*
chemical_list: D020121:5' Untranslated Regions; D012367:RNA, Viral; D014764:Viral Proteins
keywords: Avian; Enterovirus; Falcon; IRES; Kestrel; Picornavirus