Lysyltyrosyllysine (Lys-Tyr-Lys, KYK) is used together with uracil DNA glycosylase to quantify uracil. Lysyltyrosyllysine is also used as a model peptide to study free radical oxidation and electron capture mechanisms.
Azioni biochim/fisiol
Tripeptide can induce nicks at apurinic/apyrimidinic sites in circular DNA.
Journal of the American Chemical Society, 130(38), 12680-12689 (2008-09-03)
The effects of water on electron capture dissociation products, molecular survival, and recombination energy are investigated for diprotonated Lys-Tyr-Lys solvated by between zero and 25 water molecules. For peptide ions with between 12 and 25 water molecules attached, electron capture
The Journal of biological chemistry, 256(20), 10217-10220 (1981-10-25)
Tripeptides containing aromatic residues between basic ones, such as Lys-Trp-Lys and Lys-Tyr-Lys can nick supercoiled or relaxed DNAs containing apurinic/apyrimidinic sites (AP-sites). The nicking, which is ionic strength-dependent, occurs at AP-sites, since native PM2 DNA is not hydrolyzed. The nicking
International journal of radiation biology, 55(3), 353-364 (1989-03-01)
OH.-induced covalent peptide-nucleotide adducts have been isolated by reverse-phase chromatography from the enzymic hydrolyzates of gamma-ray irradiated solutions containing double-stranded poly(deoxyadenylic-deoxythymidylic acid) and one of the tripeptides, lysyl-tryptophyl-lysine or lysyl-tyrosyl-lysine. Numerous compounds were formed, resulting presumably from different modes of
Exposure to UVA radiation of SV40 DNA substituted with bromodeoxyuridine (BrdU) in the presence of Hoechst dye 33258 results in the production of uracil. The yield of uracil was determined by measuring the increase in the single-strand break (SSB) yield
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