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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1994-2-22
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pubmed:abstractText |
Amplifiable messenger RNAs (Wu, Y., Zhang, D. Y., and Kramer, F. R. (1992) Proc. Natl. Acad. Sci. U.S.A. 89, 11769-11773) were used as templates in coupled replication-translation reactions. These amplifiable mRNAs contained a preselected messenger sequence embedded within the sequence of MDV-1 RNA, which is a small, naturally occurring template for Q beta replicase. When these recombinant mRNAs were incubated in vitro in reactions that contained both an Escherichia coli cell-free translation system and Q beta replicase, the encoded protein was synthesized more efficiently than in corresponding reactions that did not contain Q beta replicase. Moreover, when coupled replication-translation reactions were carried out in a continuous-flow format (Spirin, A. S., Baranov, V. I., Ryabova, L. A., Ovodov, S. Yu., and Alakhov, Yu. B. (1988) Science 242, 1162-1164), the synthesis of biologically active protein continued for a prolonged period. The results suggest that the mechanism of replication and translation in coupled reactions is similar to the mechanism by which Q beta phage genomic RNA is simultaneously replicated and translated in Q beta-infected E. coli: protein synthesis occurs on nascent RNA strands; many more sense strands are synthesized than antisense strands; and the integrity of the messenger sequence is preserved because a relatively small number of antisense strands serve as master templates for the synthesis of new messenger strands.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
14
|
pubmed:volume |
269
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1501-5
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8288616-Cell-Free System,
pubmed-meshheading:8288616-Kinetics,
pubmed-meshheading:8288616-Protein Biosynthesis,
pubmed-meshheading:8288616-Q beta Replicase,
pubmed-meshheading:8288616-RNA, Messenger,
pubmed-meshheading:8288616-Templates, Genetic,
pubmed-meshheading:8288616-Virus Replication
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pubmed:year |
1994
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pubmed:articleTitle |
Coupled replication-translation of amplifiable messenger RNA. A cell-free protein synthesis system that mimics viral infection.
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pubmed:affiliation |
Institute of Protein Research, Russian Academy of Sciences, Moscow Region.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|