A constitutive O6-methylguanine-DNA methyltransferase of Rhizobium meliloti.

doi:10.1016/0921-8777(90)90070-l

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Article

A constitutive O6-methylguanine-DNA methyltransferase of Rhizobium meliloti.

Mutation research - 1 May 1990

Kaufman A, Walker G C

Abstract excerpt

We have identified a DNA methyltransferase activity of the nitrogen-fixing bacterium, Rhizobium meliloti, that repairs O6-methylguanine lesions. Repair of the O6-methylguanine residue results in transfer of the methyl group to a cysteine residue of a 28,000-dalton protein. The O6-methyltransferas...

Topics

DNA Repair
DNA, Bacterial
Escherichia coli
Methylation
Methylnitronitrosoguanidine
Methyltransferases
Mutation
O(6)-Methylguanine-DNA Methyltransferase
Rhizobium

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