Unknown

Dataset Information

0

Genome-wide transposon mutagenesis of paramyxoviruses reveals constraints on genomic plasticity.


ABSTRACT: The antigenic and genomic stability of paramyxoviruses remains a mystery. Here, we evaluate the genetic plasticity of Sendai virus (SeV) and mumps virus (MuV), sialic acid-using paramyxoviruses that infect mammals from two Paramyxoviridae subfamilies (Orthoparamyxovirinae and Rubulavirinae). We performed saturating whole-genome transposon insertional mutagenesis, and identified important commonalities: disordered regions in the N and P genes near the 3' genomic end were more tolerant to insertional disruptions; but the envelope glycoproteins were not, highlighting structural constraints that contribute to the restricted antigenic drift in paramyxoviruses. Nonetheless, when we applied our strategy to a fusion-defective Newcastle disease virus (Avulavirinae subfamily), we could select for F-revertants and other insertants in the 5' end of the genome. Our genome-wide interrogation of representative paramyxovirus genomes from all three Paramyxoviridae subfamilies provides a family-wide context in which to explore specific variations within and among paramyxovirus genera and species.

SUBMITTER: Ikegame S 

PROVIDER: S-EPMC7577504 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Genome-wide transposon mutagenesis of paramyxoviruses reveals constraints on genomic plasticity.

Ikegame Satoshi S   Beaty Shannon M SM   Stevens Christian C   Won Taylor T   Park Arnold A   Sachs David D   Hong Patrick P   Lee Benhur B   Thibault Patricia A PA  

PLoS pathogens 20201009 10


The antigenic and genomic stability of paramyxoviruses remains a mystery. Here, we evaluate the genetic plasticity of Sendai virus (SeV) and mumps virus (MuV), sialic acid-using paramyxoviruses that infect mammals from two Paramyxoviridae subfamilies (Orthoparamyxovirinae and Rubulavirinae). We performed saturating whole-genome transposon insertional mutagenesis, and identified important commonalities: disordered regions in the N and P genes near the 3' genomic end were more tolerant to insertio  ...[more]

Similar Datasets

| S-EPMC2632054 | biostudies-literature
| S-EPMC3864309 | biostudies-literature
| S-EPMC4904408 | biostudies-literature
| S-EPMC4809991 | biostudies-literature
| S-EPMC5686748 | biostudies-literature
| S-EPMC8262987 | biostudies-literature
| S-EPMC5626973 | biostudies-literature
| S-EPMC9816413 | biostudies-literature
| S-EPMC1199541 | biostudies-literature
| S-EPMC7000968 | biostudies-literature