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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Combined effect of a peptide-morpholino oligonucleotide conjugate and a cell-penetrating peptide as an antibiotic
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Combined effect of a peptide-morpholino oligonucleotide conjugate and a cell-penetrating peptide as an antibiotic

机译：Combined effect of a peptide-morpholino oligonucleotide conjugate and a cell-penetrating peptide as an antibiotic

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摘要

A cell-penetrating peptide (CPP)-morpholino oligonucleotide (MO) conjugate (PMO) that has an antibiotic effect in culture had some contaminating CPPs in earlier preparations. The mixed conjugate had gene-specific and gene-nonspecific effects. An improved purification procedure separates the PMO from the free CPP and MO. The gene-specific effects are a result of the PMO, and the nonspecific effects are a result of the unlinked, unreacted CPP. The PMO and the CPP can be mixed together, as has been shown previously in earlier experiments, and have a combined effect as an antibiotic. Kinetic analysis of these effects confirm this observation. The effect of the CPP is bacteriostatic. The effect of the PMO appears to be bacteriocidal. An assay for mutations that would alter the ability of these agents to affect bacterial viability is negative.

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