Skip to main content
Nucleic Acids Research logoLink to Nucleic Acids Research
. 1982 Feb 11;10(3):903–912. doi: 10.1093/nar/10.3.903

A lac promoter with a changed distance between -10 and -35 regions.

W Mandecki, W S Reznikoff
PMCID: PMC326210  PMID: 6278440

Abstract

A lac promotor mutant was constructed by filling in the protruding ends of the HpaII site located within the lac promotor. The mutation, named M42, is a two base pair insertion that changes the distance between the -10 and -35 regions from 18 to 20 residues. The activity of the mutant promotor measured in vivo is 15% of the wild-type promotor. The M42 promotor is sensitive to the catabolite repression in the manner similar to that of the wild type. Sequences of several deletions within the lac promotor are also given.

Full text

PDF
903

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Backman K., Ptashne M., Gilbert W. Construction of plasmids carrying the cI gene of bacteriophage lambda. Proc Natl Acad Sci U S A. 1976 Nov;73(11):4174–4178. doi: 10.1073/pnas.73.11.4174. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Berman M. L., Landy A. Promoter mutations in the transfer RNA gene tyrT of Escherichia coli. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4303–4307. doi: 10.1073/pnas.76.9.4303. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Gardner J. F., Reznikoff W. S. Identification and restriction endonuclease mapping of the threonine operon regulatory region. J Mol Biol. 1978 Dec 5;126(2):241–258. doi: 10.1016/0022-2836(78)90361-3. [DOI] [PubMed] [Google Scholar]
  4. Maquat L. E., Reznikoff W. S. In vitro analysis of the Escherichia coli RNA polymerase interaction with wild-type and mutant lactose promoters. J Mol Biol. 1978 Nov 15;125(4):467–490. doi: 10.1016/0022-2836(78)90311-x. [DOI] [PubMed] [Google Scholar]
  5. Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
  6. Mitchell D. H., Reznikoff W. S., Beckwith J. R. Genetic fusions defining trp and lac operon regulatory elements. J Mol Biol. 1975 Apr 15;93(3):331–350. doi: 10.1016/0022-2836(75)90281-8. [DOI] [PubMed] [Google Scholar]
  7. Rosenberg M., Court D. Regulatory sequences involved in the promotion and termination of RNA transcription. Annu Rev Genet. 1979;13:319–353. doi: 10.1146/annurev.ge.13.120179.001535. [DOI] [PubMed] [Google Scholar]
  8. Shortle D., Nathans D. Local mutagenesis: a method for generating viral mutants with base substitutions in preselected regions of the viral genome. Proc Natl Acad Sci U S A. 1978 May;75(5):2170–2174. doi: 10.1073/pnas.75.5.2170. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Siebenlist U., Simpson R. B., Gilbert W. E. coli RNA polymerase interacts homologously with two different promoters. Cell. 1980 Jun;20(2):269–281. doi: 10.1016/0092-8674(80)90613-3. [DOI] [PubMed] [Google Scholar]
  10. Wartell R. M., Reznikoff W. S. Cloning DNA restriction endonuclease fragments with protruding single-stranded ends. Gene. 1980 May;9(3-4):307–319. doi: 10.1016/0378-1119(90)90329-p. [DOI] [PubMed] [Google Scholar]

Articles from Nucleic Acids Research are provided here courtesy of Oxford University Press

RESOURCES