ArticlePlant molecular biology2001
The protease and reverse transcriptase of the tobacco LTR retrotransposon Tnt1 are enzymatically active when expressed in Escherichia coli.
Article in Plant molecular biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 2 citations in OpenAlex.
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2 authors at 1 institution in 1 country.
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Abstract
The open reading frame (ORF) of the tobacco retrotransposon Tnt1-94 was over-expressed in Escherichia coli to assay its protease and reverse transcriptase (RT) enzymatic activities. In E. coli, Tnt1-94 polyprotein is cleaved off by the element-encoded protease to release a Gag protein with an apparent molecular mass of 37 kDa that forms high-density aggregates. The catalytic site of Tnt1-94 protease (D-T-A) as determined by deletion analysis differs from that of retroviruses and of well-characterized retrotransposons (D-T/S-G). The cleaved or uncleaved ORF of Tnt1-94 displays an exogenous RT activity. Over-expression of plant retrotransposons ORFs in E. coli provides a very useful strategy to assay the enzymatic activities of their proteins and to determine their catalytic sites.
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