Genetic classification of "Sapporo-like viruses"

Schuffenecker, I.; Ando, Tamie; Thouvenot, D; Lina, Bruno; Aymard, M.

doi:10.1007/s007050170024

Cited by 77 publications

(70 citation statements)

References 40 publications

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“…In addition, primers designed for the RNA polymerase region are largely used since this region is highly conserved (Wang et al 1994, Greening et al 2001, Schuffenecker et al 2001, Farkas et al 2004. In this context, in the present study three primer pairs designed for that region were used.…”

Section: Discussionmentioning

confidence: 99%

Detection of calicivirus from fecal samples from children with acute gastroenteritis in the West Central region of Brazil

Borges¹,

Teixeira

Costa

et al. 2006

Mem. Inst. Oswaldo Cruz

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Section: Discussionmentioning

confidence: 99%

Detection of calicivirus from fecal samples from children with acute gastroenteritis in the West Central region of Brazil

Borges¹,

Teixeira

Costa

et al. 2006

Mem. Inst. Oswaldo Cruz

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“…The ORF2 of SaVs encodes a small basic protein of unknown function. For some human SaVs (genogroup I, IV and V, see classification below), another ORF3 overlapping the 5'-end of the capsid gene was proposed because there is a conserved translation initiation motif GCAAUGG at the 5'-end of this ORF3 [46,47].…”

Section: Genetic Organization and Classification Of Novs And Savsmentioning

confidence: 99%

“…Genetic classification of these viruses based on phylogenetic analysis of the complete capsid sequences is the generally accepted method [46,48,49]. Katayama et al [48] investigated which region of the genome was most suitable to classify the genotypes and genogroups of NoVs based on similarity plot analysis, bootstrap value and pairwise distances of the entire genomes of 18 strains, the complete sequences of ORF1, ORF2 and ORF3, and segments of ORF1 and ORF2.…”

Section: Genetic Organization and Classification Of Novs And Savsmentioning

confidence: 99%

“…Similar to NoVs, SaVs are genetically variable viruses and have been classified into at least 6 genotypes in 5 genogroups based on the complete capsid sequences: 3 each in genogroup I and II (GI/1-3, GII/1-3), one each in genogroup III, IV and V [46,47]. The pairwise amino acid distances of SaVs within genotypes, between genotypes and between genogroups were 1-8%, 9-29% and 51-63%, respectively.…”

Section: Genetic Classification Of Savsmentioning

confidence: 99%

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Porcine enteric caliciviruses: Genetic and antigenic relatedness to human caliciviruses, diagnosis and epidemiology

Wang

Costantini

Saif

2007

Vaccine

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Porcine enteric caliciviruses include sapoviruses and noroviruses. Porcine sapoviruses infect pigs of all ages and cause diarrhea in young pigs, whereas porcine noroviruses were detected exclusively from adult pigs without clinical signs. Importantly, certain porcine norovirus strains were genetically and antigenically related to human noroviruses. This raises public health concerns that pigs may be reservoirs for emergence of epidemic human norovirus strains. This article reviews the discovery of porcine noroviruses and sapoviruses, their classification, diagnosis, epidemiology and genetic and antigenic relatedness to human caliciviruses.

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“…Among GIII reference strains and the Czech isolate, the paired comparison showed the highest similarity between P1884/2 and JB-GC155/Korea (93%). Classification of sapoviruses is usually based on the capsid sequence and phylogenetic analysis of strain P1884/2 using the capsid sequence has confirmed its classification into the genus Sapovirus (Shuffenecker et al, 2001). The UPGMA phylogenetic analysis of the RdRp sequence surprisingly showed only 50-53 % nt identity with the GIII reference strains, but formed a tight cluster with strain K7/JP instead, which is a prototype of the GVII ge- (Figure 3).…”

Section: Case Descriptionmentioning

confidence: 99%

Molecular characterization of a porcine sapovirus strain isolated from a piglet with diarrhoea: a case report

Dufková¹,

Kulich²,

Prodělalová³

2011

Vet. Med. - Czech

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Porcine sapoviruses, members of the family Caliciviridae, have been considered as an aetiological agent of gastroenteritis in pigs. In this study, we analysed 251 faecal samples obtained from 3 to 90 day-old diarrhoeic pigs in the Czech Republic between January 2005 and June 2010 and tested them by negative staining electron microscopy for the presence of sapoviruses. Only one sample showed the presence of viral particles with characteristic sapovirus morphology. The presence of sapovirus (SaV) was confirmed by an RT-PCR assay with primers specific for the sapoviral RNA polymerase and capsid genes. Phylogenetic analysis based on a partial sequence of the RNA polymerase gene placed the new Czech isolate into the GVII genogroup of porcine sapoviruses; however, analysis of a portion of the capsid gene sequence classified the isolate as GIII of the genus Sapovirus. These contradictory findings indicate that recombinant porcine sapovirus was identified. According to our knowledge this is the first description of porcine sapovirus in domestic pigs in the Czech Republic.

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Genetic classification of "Sapporo-like viruses"

Cited by 77 publications

References 40 publications

Detection of calicivirus from fecal samples from children with acute gastroenteritis in the West Central region of Brazil

Detection of calicivirus from fecal samples from children with acute gastroenteritis in the West Central region of Brazil

Porcine enteric caliciviruses: Genetic and antigenic relatedness to human caliciviruses, diagnosis and epidemiology

Molecular characterization of a porcine sapovirus strain isolated from a piglet with diarrhoea: a case report

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