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. 1984 Mar 12;12(5):2243–2258. doi: 10.1093/nar/12.5.2243

The effect of nucleotide analogs on cell-free gene expression.

M Zimmer, K H Scheit
PMCID: PMC318659  PMID: 6424097

Abstract

The effects of the following pyrimidine nucleoside 5'-triphosphates: f5 UTP, br5 UTP, rTTP, s2 UTP, s4 UTP and s2 CTP on cell-free expression of the beta-galactosidase gene in lambda h80dlac DNA as well as the galactokinase gene in plasmid 01-14 were investigated. Only rTTP could substitute UTP in cell-free gene expression without restriction. Combinations of the other analogs with their respective natural congeners led to inhibition of gene expression. All analogs were found to inhibit transcription. Whereas br5 UTP and s4 UTP did not affect translation, mRNA containing s2 UMP or s2 CMP residues respectively was found to function poorly in translation. Only in the case of f5 UTP could ambiguitive behaviour be demonstrated. Whether mispairing of f5 UMP residues, responsible for this ambiguity takes place in transcription or in translation, could not be decided.

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Selected References

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