Involvement of a stem-loop structure in the location of junction sites in viral RNA recombination.

Abstract:

:Recombination between RNAs associated with turnip crinkle virus is thought to occur during plus-strand synthesis at motifs resembling the 5'-ends of genomic, subgenomic and satellite RNAs. Common structural regions encompassing the motifs have been found for major crossover sites on two different minus-strand templates, with junctions preferentially located in a single-stranded region at the 3' base of a hairpin. Base changes, deletions and compensatory alteration constructed in and around the hairpin in the region of the turnip crinkle virus genomic RNA involved in recombination support the importance of the hairpin for normal crossover site selection. This region of the genomic RNA is also important for replication of the viral genomic RNA in plants and protoplasts, suggesting a common link between sequences required for recombination and viral replication.

journal_name

J Mol Biol

authors

Carpenter CD,Oh JW,Zhang C,Simon AE

doi

10.1006/jmbi.1994.0050

subject

Has Abstract

pub_date

1995-02-03 00:00:00

pages

608-22

issue

5

eissn

0022-2836

issn

1089-8638

pii

S0022283684700507

journal_volume

245

pub_type

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