What question did this study set out to answer?

To sequence the structural and nonstructural genes of the human group B rotavirus CAL-1 strain and determine its evolutionary relationship to other human and animal group B rotaviruses.

July 13, 2001Journal of Medical Virology

Sequence analysis of genes encoding structural and nonstructural proteins of a human group B rotavirus detected in Calcutta, India

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Population

Human group B rotavirus CAL-1 detected in Calcutta, India

Comparison

Sequence analysis of RNA segments encoding… vs Cognate genes of other group B rotaviruses

Design

Preclinical

Authors

NKNobumichi KobayashiSapporo Medical University TNTrailokya Nath NaikNational Institute of Cholera and Enteric Diseases YKYasuhiro KusuharaUniversity of Medical Sciences and Technology

Discussion

Member takes

Implication

Informs rotavirus evolutionary models; leaves open zoonotic risks and requires broader genomic surveillance.

Key Points

To sequence the structural and nonstructural genes of the human group B rotavirus CAL-1 strain and determine its evolutionary relationship to other human and animal group B rotaviruses.
Sequenced the RNA segments encoding structural proteins (VP4, VP6, VP7) and nonstructural proteins (NSP1, NSP3) of human group B rotavirus CAL-1.
Compared nucleotide and amino acid sequences of CAL-1 to human adult diarrheal rotavirus (ADRV) and animal (bovine, murine, ovine) group B rotaviruses.
CAL-1 exhibited greater than 90% sequence identity to human ADRV across the analyzed genes, compared to 58% to 73% identity with animal group B rotaviruses.
CAL-1 encoded VP4 and NSP3 proteins that were 1 and 23 amino acids longer, respectively, than those of human ADRV due to nucleotide variations.

Structured PICO

Population

Human group B rotavirus CAL-1 detected in Calcutta, India

Intervention

Sequence analysis of RNA segments encoding structural (VP4, VP6, VP7) and nonstructural (NSP1, NSP3) proteins

Comparator

Cognate genes of other group B rotaviruses (human ADRV in China, bovine, murine, ovine viruses)

Outcome

Nucleotide sequence identities and relatednesssurrogate

Sequence analysis suggests human group B rotaviruses CAL-1 and ADRV share a common ancestral virus distinct from known animal group B rotaviruses.

Cite This Study

Kobayashi et al. (2001) studied this question.

synapsesocial.com/papers/6a951124750ff06d6a76825a https://doi.org/10.1002/jmv.1089

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Sequence analysis of genes encoding structural and nonstructural proteins of a human group B rotavirus detected in Calcutta, India

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Sequence analysis of genes encoding structural and nonstructural proteins of a human group B rotavirus detected in Calcutta, India

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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