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. 1994 Jul 25;22(14):2784–2790. doi: 10.1093/nar/22.14.2784

Synthetic polyamines stimulate in vitro transcription by T7 RNA polymerase.

M Frugier 1, C Florentz 1, M W Hosseini 1, J M Lehn 1, R Giegé 1
PMCID: PMC308248  PMID: 8052534

Abstract

The influence of nine synthetic polyamines on in vitro transcription with T7 RNA polymerase has been studied. The compounds used were linear or macrocyclic tetra- and hexaamine, varying in their size, shape and number of protonated groups. Their effect was tested on different types of templates, all presenting the T7 RNA promoter in a double-stranded form followed by sequences encoding short transcripts (25 to 35-mers) either on single- or double-stranded synthetic oligodeoxyribonucleotides. All polyamines used stimulate transcription of both types of templates at levels dependent on their size, shape, protonation degree, and concentration. For each compound, an optimal concentration could be defined; above this concentration, transcription inhibition occurred. Highest stimulation (up to 12-fold) was obtained by the largest cyclic compound called [38]N6C10.

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Selected References

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