Title
Identification of a weak promoter for the dam gene of Escherichia coli
UMMS Affiliation
Department of Biochemistry and Molecular Pharmacology
Publication Date
1992-05-07
Document Type
Article
Subjects
Base Sequence; Cloning, Molecular; Escherichia coli; Escherichia coli Proteins; Lac Operon; Methyltransferases; Molecular Sequence Data; *Promoter Regions, Genetic; *Site-Specific DNA-Methyltransferase (Adenine-Specific); Transcription, Genetic; beta-Galactosidase
Disciplines
Biochemistry, Biophysics, and Structural Biology | Pharmacology, Toxicology and Environmental Health
Abstract
We have used a combination of techniques to identify a weak promoter located about 70 nucleotides before the start site of translation of the Escherichia coli dam gene which encodes a DNA methyltransferase. The promoter activity was identified by the use of lacZ fusions to fragments containing different lengths of upstream DNA. In vitro run-off transcription and primer extension determinations revealed transcription initiation sites at either 69 or 73 nucleotides prior to the ATG of the dam coding sequence. No ribosome binding sequence was present close to the ATG codon suggesting that the transcript may be inefficiently translated.
Source
Biochim Biophys Acta. 1992 May 7;1131(1):47-52.
Journal/Book/Conference Title
Biochimica et biophysica acta
Related Resources
PubMed ID
1581360
Repository Citation
Wu T, Grelland E, Boye E, Marinus MG. (1992). Identification of a weak promoter for the dam gene of Escherichia coli. Biochemistry and Molecular Pharmacology Publications. Retrieved from https://escholarship.umassmed.edu/bmp_pp/41