Methylation of hamster DNA by the carcinogen N-nitroso-bis (2-oxopropyl)amine.

Abstract:

:The alkylation of hamster liver, lung and pancreas DNA by [1-14C]- and [2,3-14C]N-nitrosobis (2-oxopropyl) amine (BOP) has been examined. The specific activity of pancreas DNA after [2,3-14C]BOP administration was only 2% of that when [1-14C]BOP was given. 7-Methylguanine, but not O-6-methylguanine, was found in hydrolysates of liver and pancreas DNA. Nearly equal amount of alkylation were produced in the liver when [1-14C]- and [2,3-14C]BOP were given. At least one-half of the radioactivity in the liver was associated with N-alkylated purines, whereas only 20% was in this form in the pancreas.

journal_name

Cancer Lett

journal_title

Cancer letters

authors

Lawson TA,Gingell R,Nagel D,Hines LA,Ross A

doi

10.1016/0304-3835(81)90116-6

subject

Has Abstract

pub_date

1981-01-01 00:00:00

pages

251-5

issue

3

eissn

0304-3835

issn

1872-7980

pii

0304-3835(81)90116-6

journal_volume

11

pub_type

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