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- Transfer RNA-like structures (tRNA-like structures) are RNA sequences, which have a similar tertiary structure to tRNA; they frequently contain a pseudoknot close to the 3' end. The presence of tRNA-like structures has been demonstrated in many plant virus RNA genomes. These tRNA-like structures are linked to regulation of plant virus replication. tRNA-like structures mimic some tRNA function, such as aminoacylation. There are three aminoacylation specificities, valine, histidine and tyrosine. For example, valine binds to the tRNA-like structure of the turnip yellow mosaic virus genome whilst tyrosine binds to the tRNA-like structure of the barley stripe mosaic virus genome. tRNA-like structures which lack the 3' termini lack complete or partial tRNA mimicry. tRNA-like structures are required for RNA encapsulation and increase RNA stability. They also act as 3'-translational enhancers and regulators of minus strand synthesis. (en)
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- 4143 (xsd:nonNegativeInteger)
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- Gallery of secondary structure images (en)
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- Transfer RNA-like structures (tRNA-like structures) are RNA sequences, which have a similar tertiary structure to tRNA; they frequently contain a pseudoknot close to the 3' end. The presence of tRNA-like structures has been demonstrated in many plant virus RNA genomes. These tRNA-like structures are linked to regulation of plant virus replication. tRNA-like structures are required for RNA encapsulation and increase RNA stability. They also act as 3'-translational enhancers and regulators of minus strand synthesis. (en)
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- Transfer RNA-like structures (en)
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