Chemical modification of DNA with muta-carcinogens. II. Base sequence-specific binding to DNA of 2-amino-6-methyl-dipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1). | Zendy

Yosuke Hashimoto | Zendy; Koichi Shudo | Zendy

Open Access

Chemical modification of DNA with muta-carcinogens. II. Base sequence-specific binding to DNA of 2-amino-6-methyl-dipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1).

Author(s) -

Yosuke Hashimoto,

Koichi Shudo

Publication year - 1985

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.8562215

Subject(s) - guanine , imidazole , dna , chemistry , stereochemistry , base pair , covalent bond , carcinogen , biochemistry , nucleotide , biology , gene , organic chemistry

2-Amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1) binds covalently to DNA after metabolic activation to give 2-(C8-guanyl)amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Gua-Glu-P-1). The importance of the intercalative ability of the Glu-P-1 skeleton into DNA base pairs for this reaction is emphasized. The reactive form of Glu-P-1, N-acetoxy-Glu-P-1 (N-OAc-Glu-P-1), reacts preferentially at the C8 position of guanine residues in G-C-rich regions of DNA.

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