Roberta J. Isbell

Activity of the Escherichia coli mutT mutator allele in an anaerobic environment

Robert G. Fowler, Jay Erickson, Roberta J. Isbell · Journal of Bacteriology · 1994 · 26 citations · Full text

Engineering, Mutation Frequencies, Bioenergetics +13

Temperature-dependent mutational specificity of an Escherichia coli mutator, dnaQ49, defective in 3′→5′ exonuclease (proofreading) activity

Roberta J. Isbell, Robert G. Fowler · Mutation research. Fundamental and molecular mechanisms of mutagenesis · 1989 · 17 citations

Nucleic Acid Chemistry, Genetics, Molecular Biology +8

The high mutator activity of the dnaQ49 allele of Escherichia coli is medium-dependent and results from both defective 3′→5′ proofreading and methyl-directed mismatch repair

Shalini Krishnaswamy, Jacquelyne A. Rogers, Roberta J. Isbell et al. · Mutation research. Fundamental and molecular mechanisms of mutagenesis · 1993 · 12 citations

Genome Instability, Genetics, Dna Analysis +9

The interaction of the Escherichia coli mutD and mutT pathways in the prevention of A:T → C:G transversions

Robert G. Fowler, Maria Amutan, Roberta J. Isbell · Mutation research. Fundamental and molecular mechanisms of mutagenesis · 1992 · 10 citations

Engineering, Genetics, Bacteriology +12