Comparison of incorporation and extension of nucleotides in vitro opposite 8-hydroxyguanine (7,8-dihydro-8-oxoguanine) in hot spots of the c-Ha-ras gene.

Abstract

DNA templates with 8-hydroxyguanine (7,8-dihydro-8-oxoguanine, oh8Gua) at a site corresponding to the first or second position of codon 12 of the c-Ha-ras gene were prepared, and the nucleotides inserted opposite the modified base were compared. The Klenow fragment (KF) of Escherichia coli DNA polymerase I inserted C opposite oh8Gua at both positions. Taq… (More)

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