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- W2003272234 abstract "The synthesis of the first peptide-oligonucleotide conjugate designed to coordinate chromium(III) is reported. The overall goal of this work is to synthesize di-deoxynucleotides tethered with chromium(III)-coordinating appendages to model chromium-DNA-protein cross-links, which are a type of DNA lesion that may be involved in chromium-induced cancers. The conjugate dGp(NHCH(2)CH(2)S-Ac-Gly-Ser-Gly-OH)G was made by coupling the peptide, ClAc-Gly-Ser-Gly-OH, and dinucleotide, dGp(NHCH(2)CH(2)SH)G, through a thioether moiety. The conjugate was characterized by HPLC and mass spectrometry. Previously reported methods for small-scale solid-phase synthesis of peptides and dinucleotide were unsuitable; therefore, gram-scale solution-phase methods were developed. We also report the gram-scale syntheses of two other serine-containing peptides, ClAc-betaAla-Ser-Gly-OH and ClAc-Ser-Gly-OH, and three histidine-containing peptides, ClAc-Gly-His-Gly-OH, ClAc-betaAla-His-Gly-OH, and ClAc-His-Gly-OH. The synthesis and characterization of chromium-containing peptide-oligonucleotide conjugates will ultimately help us to understand chromium-DNA interactions at a molecular level, which is necessary before we can determine how chromium causes cancer." @default.
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- W2003272234 date "2001-06-07" @default.
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- W2003272234 title "Synthesis of Peptide−Oligonucleotide Conjugates for Chromium Coordination" @default.
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- W2003272234 doi "https://doi.org/10.1021/bc0100105" @default.
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