Sequence analysis and evolution of group B rotaviruses

Rahman, Mustafizur; Hassan, Zahid; Hasan, Zahidah; Saiada, Farjana; Banik, Sukalyani; Faruque, A. S. G.; Delbeke, Thomas; Matthijnssens, Jelle; Ranst, Marc Van; Azim, Tasnim

doi:10.1016/j.virusres.2007.01.008

Cited by 20 publications

(23 citation statements)

References 27 publications

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“…They were subsequently detected in sporadic cases in India in 1997 and in Bangladesh in 2000, demonstrating the distribution of GBRs in Asian countries outside China (Krishnan et al, 1999;Sanekata et al, 2003). Thereafter, GBRs have again been detected in these countries in sporadic cases of diarrhoea (Barman et al, 2006;Rahman et al, 2007). The GenBank/EMBL/DDBJ accession numbers for the nucleotide sequences of GBR strains determined in this study are GU377213-GU377223 (IC-008), GU377224-GU377234 (IDH-084), GU391301-GU391311 (Bang117) and GU370054-GU370060 (MMR-B1).…”

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confidence: 95%

“…The human GBRs detected were classified genetically into two lineages within genotype G2 based on the VP7 gene: the Chinese lineage and the Indian-Bangladeshi lineage (Ahmed et al, 2004;Yang et al, 2004;Aung et al, 2009). The GBR strains of these two lineages were genetically closely related, suggesting that these lineages diverged from a common ancestral origin several decades ago (Yang et al, 2004;Rahman et al, 2007). However, genetic diversity in RNA segments other than the VP7 gene has been scarcely analysed, and thus the accurate status of molecular evolution of the whole genome of GBR is still unknown.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of genetic diversity and molecular evolution of human group B rotaviruses based on whole genome segments

Yamamoto

Ghosh

Ganesh

et al. 2010

Journal of General Virology

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Group B rotavirus (GBR) is a rare enteric pathogen that causes severe diarrhoea, primarily in adults. Nearly full-length sequences of all 11 RNA segments were determined for human GBRs detected recently in India (IDH-084 in 2007, IC-008 in 2008, Bangladesh (Bang117 in 2003) and Myanmar (MMR-B1 in 2007), and analysed phylogenetically with the sequence data of GBRs reported previously. All RNA segments of GBR strains from India, Bangladesh and Myanmar showed .95 % nucleotide sequence identities. Among the 11 RNA segments, the VP6 and NSP2 genes showed the highest identities (.98 %), whilst the lowest identities were observed in the NSP4 gene (96.1 %), NSP5 gene (95.6 %) and VP8*-encoding region of the VP4 gene (95.9 %). Divergent or conserved regions in the deduced amino acid sequences of GBR VP1-VP4 and NSP1-NSP5 were similar to those in group A rotaviruses (GARs), and the functionally important motifs and structural characteristics in viral proteins known for GAR were conserved in all of the human GBRs. These findings suggest that, whilst the degree of genetic evolution may be dependent on each RNA segment, human GBR may have been evolving in a similar manner to GAR, associated with the similar functional roles of individual viral proteins. INTRODUCTIONRotavirus, a member of the family Reoviridae, is the most important viral pathogen causing gastroenteritis in humans. Rotavirus has 11 segments of double-stranded RNA (dsRNA) as a genome, and the virus particle is composed of three concentric layers, i.e. the outer capsid, inner capsid and core (Estes & Kapikian, 2007). The outer capsid consists of two structural proteins, VP4 and VP7, which are neutralization antigens. The inner capsid consists of structural protein VP6. Rotavirus is classified into five groups (A-E) and two putative groups (F and G), based on the antigenicity of the inner capsid protein VP6 and genomic characteristics (Kapikian et al., 2001). In humans, groups A, B and C have so far been detected. Group A rotavirus (GAR) is the most prevalent throughout the world and is recognized as the leading viral pathogen of acute gastroenteritis in children.Group B rotavirus (GBR) is genetically and antigenically distinct from GAR and has been detected in humans, mice, calves, pigs and sheep. In humans, GBR has been noted because it causes severe, cholera-like diarrhoea, mostly in adults (Mackow, 1995). GBR was first identified as adult diarrhoea rotavirus (ADRV) in nationwide outbreaks in China in 1982-1983 (Hung et al., 1983, 1984Wang et al., 1985), and the detection of this virus has been limited to China (Dai et al., 1987; Fang et al., 1989). They were subsequently detected in sporadic cases in India in 1997 and in Bangladesh in 2000, demonstrating the distribution of GBRs in Asian countries outside China (Krishnan et al., 1999;Sanekata et al., 2003). Thereafter, GBRs have again been detected in these countries in sporadic cases of diarrhoea (Barman et al., 2006;Rahman et al., 2007). The GenBank/EMBL/DDBJ accession numbers for the nucleotide sequen...

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mentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Analysis of genetic diversity and molecular evolution of human group B rotaviruses based on whole genome segments

Yamamoto

Ghosh

Ganesh

et al. 2010

Journal of General Virology

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“…However, group B rotaviruses were detected in Kolkata, India, in 1997[Krishnan et al, 1999 and Bangladesh in 2000 [Sanekata et al, 2003], from sporadic cases of diarrhea in adults, and the representative strains were designated as CAL-1 and Bang373, respectively Ahmed et al, 2004]. Thereafter, group B rotavirus has been detected sporadically in these areas [Barman et al, 2006;Rahman et al, 2007]. A virological study with the stored specimens also revealed the distribution of group B rotavirus in western [Kelkar and Zade, 2004].…”

Section: Introductionmentioning

confidence: 99%

Detection of group B rotavirus in an adult with acute gastroenteritis in Yangon, Myanmar

Aung¹,

Kobayashi

Nagashima

et al. 2009

Journal of Medical Virology

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In Yangon, Myanmar, a human group B rotavirus was first detected in 2007 in a stool specimen from a sporadic case of acute gastroenteritis in an adult. The strain was designated as MMR-B1. The full-length sequences of the MMR-B1 genes encoding VP7, VP4 (VP5* and VP8*), VP6, and NSP4 were determined for genetic characterization. These four MMR-B1 genes showed considerable higher sequence identities (97.2-98.4%) to those of group B rotaviruses detected in India (CAL-1 in 1998) and Bangladesh (Bang373 and Bang544 in 2000 and 2001, respectively) than to those of Chinese strains (90.7-93.6%) (ADRV and WH-1 in 1982 and 2002, respectively). Phylogenetically, the four genes of MMR-B1 were clustered into the Indian-Bangladeshi lineage. Although the deduced amino acid sequences of MMR-B1 were similar to those of strains CAL-1 and Bang373, several amino acids in VP8* were found to be different from those of the group B rotaviruses described previously. The first detection in Myanmar of a human group B rotavirus suggested endemic distribution or expansion of the group B rotavirus of the Indian-Bangladeshi lineage in Southeast Asia.

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“…There are seven species of rotaviruses, designated A to G, of which groups A-C infect humans [11]. At least 14 G types (G1 to G14) and 20 P types (P [1] to P [20]) have been identified to date, of which 10 G types and five P types have been found in rotaviruses infecting humans [12].…”

Section: Rotavirusesmentioning

confidence: 99%

Inadequately Treated Wastewater as a Source of Human Enteric Viruses in the Environment

Okoh¹,

Sibanda²,

Gusha³

2015

Wastewater and Public Health

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Human enteric viruses are causative agents in both developed and developing countries of many non-bacterial gastrointestinal tract infections, respiratory tract infections, conjunctivitis, hepatitis and other more serious infections with high morbidity and mortality in immunocompromised individuals such as meningitis, encephalitis and paralysis. Human enteric viruses infect and replicate in the gastrointestinal tract of their hosts and are released in large quantities in the stools of infected individuals. The discharge of inadequately treated sewage effluents is the most common source of enteric viral pathogens in aquatic environments. Due to the lack of correlation between the inactivation rates of bacterial indicators and viral pathogens, human adenoviruses have been proposed as a suitable index for the effective indication of viral contaminants in aquatic environments. This paper reviews the major genera of pathogenic human enteric viruses, their pathogenicity and epidemiology, as well as the role of wastewater effluents in their transmission.

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Sequence analysis and evolution of group B rotaviruses

Cited by 20 publications

References 27 publications

Analysis of genetic diversity and molecular evolution of human group B rotaviruses based on whole genome segments

Analysis of genetic diversity and molecular evolution of human group B rotaviruses based on whole genome segments

Detection of group B rotavirus in an adult with acute gastroenteritis in Yangon, Myanmar

Inadequately Treated Wastewater as a Source of Human Enteric Viruses in the Environment

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