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  • Title: Mutations induced by glyoxal and methylglyoxal in mammalian cells.
    Author: Murata-Kamiya N, Kamiya H, Kaji H, Kasai H.
    Journal: Nucleic Acids Symp Ser; 2000; (44):3-4. PubMed ID: 12903240.
    Abstract:
    To investigate the mutation spectra of glyoxal and methylglyoxal in mammalian cells, we analyzed mutations in a bacterial suppressor tRNA (supF) gene in the shuttle vector plasmid pMY189. The cytotoxicity and the mutation frequency increased according to the doses of glyoxal and methylglyoxal. The majority of glyoxal-induced mutations (65%) were base-pair substitutions, in which G:C-->C:G transversions were predominant. In the mutants induced by methylglyoxal, multi-base deletions were predominant (50%), followed by base-pair substitutions (35%), in which G:C-->C:G and G:C-->T:A transversions were predominant.
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