Depletion of mammalian O6-alkylguanine-DNA alkyltransferase activity by O6-benzylguanine provides a means to evaluate the role of this protein in protection against carcinogenic and therapeutic alkylating agents. - Dolan,M.E.; Moschel,R.C.; Pegg,A.E. (Proc Nat Aced Sci (Wash), 1990)