Title
Mutations produced by DNA polymerase III holoenzyme of Escherichia coli after in vitro synthesis in the absence of single-strand binding protein
UMMS Affiliation
Department of Biochemistry and Molecular Pharmacology
Publication Date
1990-10-01
Document Type
Article
Subjects
Base Sequence; Chromosome Deletion; DNA Polymerase III; *DNA Replication; DNA Transposable Elements; DNA, Bacterial; DNA, Single-Stranded; Escherichia coli; Genes, Bacterial; Molecular Sequence Data; Mutation; Plasmids; Templates, Genetic; Tetracycline Resistance
Disciplines
Biochemistry, Biophysics, and Structural Biology | Pharmacology, Toxicology and Environmental Health
Abstract
Single-stranded plasmid DNA, containing the mnt gene, was replicated in vitro with DNA polymerase III holoenzyme. Escherichia coli mutH bacteria, defective in mismatch repair, were transformed with the products of in vitro synthesis. Mutations in mnt were readily identified and 33 out of 65 isolates were single base changes including transition, transversion and frameshift mutations. The remaining 32 isolates were deletions of apparently random length and substitutions (deletion/insertions). The intergenic deletions as well as the transition and frameshift mutations were identical to those previously isolated from mismatch repair-defective cells in vivo.
Source
Mol Microbiol. 1990 Oct;4(10):1645-52.
Journal/Book/Conference Title
Molecular microbiology
Related Resources
PubMed ID
1963919
Repository Citation
Carraway, Margaretha; Rewinski, Caroline; and Marinus, Martin G., "Mutations produced by DNA polymerase III holoenzyme of Escherichia coli after in vitro synthesis in the absence of single-strand binding protein" (1990). Biochemistry and Molecular Pharmacology Publications and Presentations. 35.
https://escholarship.umassmed.edu/bmp_pp/35