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. 1984 Mar;4(3):407–414. doi: 10.1128/mcb.4.3.407

Expression of plasmid R388-encoded type II dihydrofolate reductase as a dominant selective marker in Saccharomyces cerevisiae.

A Miyajima, I Miyajima, K Arai, N Arai
PMCID: PMC368717  PMID: 6325876

Abstract

The R388 plasmid-encoded drug-resistant type II dihydrofolate reductase gene (R . dhfr) was expressed in Saccharomyces cerevisiae by fusing the R . dhfr coding sequence to the yeast TRP5 promoter. Yeast cells harboring these recombinant plasmids grew in media with 10 micrograms of methotrexate per ml and 5 mg of sulfanilamide per ml, a condition which inhibits the growth of wild-type cells. Addition of a 390-base-pair fragment from the 3'-noncoding region of TRP5 downstream from R . dhfr increased expression. Presumably, the added segment promoted termination or polyadenylation or both of the R . dhfr transcript. The activity of the plasmid-encoded dihydrofolate reductase and the copy number of the R . dhfr plasmid in cells grown in drug-selective media were higher by one order of magnitude than those grown in nutrition-selective media. Plasmid copy number, as well as the plasmid-encoded enzyme level, decreased when cells were selected for prototrophy. In drug-selective media, the plasmid-encoded enzyme level and the content of R . dhfr transcripts were nearly constant in cells harboring R . dhfr plasmids containing different yeast promoters. In contrast, the plasmid copy number and beta-lactamase activity encoded in cis by plasmids were much higher when R . dhfr was associated with the weak TRP5 promoter than when it was fused to the strong ADC1 promoter. These results indicate that plasmid copy number, i.e., gene dosage of R . dhfr, correlates inversely with the strength of the promoter associated with R . dhfr, and cells with a higher plasmid copy number were enriched in drug-selective media. The transformation efficiency of R . dhfr fused to the ADC1 promoter was almost the same on drug-selective plates as on nutrition-selective plates, indicating that R . dhfr is suitable as a dominant selective transformation marker in S. cerevisiae.

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Selected References

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

  1. Ammerer G. Expression of genes in yeast using the ADCI promoter. Methods Enzymol. 1983;101:192–201. doi: 10.1016/0076-6879(83)01014-9. [DOI] [PubMed] [Google Scholar]
  2. Amyes S. G., Smith J. T. R-factor trimethoprim resistance mechanism: an insusceptible target site. Biochem Biophys Res Commun. 1974 May 20;58(2):412–418. doi: 10.1016/0006-291x(74)90380-5. [DOI] [PubMed] [Google Scholar]
  3. An G., Friesen J. D. Plasmid vehicles for direct cloning of Escherichia coli promoters. J Bacteriol. 1979 Nov;140(2):400–407. doi: 10.1128/jb.140.2.400-407.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Aviv H., Leder P. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc Natl Acad Sci U S A. 1972 Jun;69(6):1408–1412. doi: 10.1073/pnas.69.6.1408. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Beggs J. D. Transformation of yeast by a replicating hybrid plasmid. Nature. 1978 Sep 14;275(5676):104–109. doi: 10.1038/275104a0. [DOI] [PubMed] [Google Scholar]
  6. Bennetzen J. L., Hall B. D. Codon selection in yeast. J Biol Chem. 1982 Mar 25;257(6):3026–3031. [PubMed] [Google Scholar]
  7. Botstein D., Falco S. C., Stewart S. E., Brennan M., Scherer S., Stinchcomb D. T., Struhl K., Davis R. W. Sterile host yeasts (SHY): a eukaryotic system of biological containment for recombinant DNA experiments. Gene. 1979 Dec;8(1):17–24. doi: 10.1016/0378-1119(79)90004-0. [DOI] [PubMed] [Google Scholar]
  8. Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1006/abio.1976.9999. [DOI] [PubMed] [Google Scholar]
  9. Brendel M., Fäth W. W., Laskowski W. Isolation and characterization of mutants of Saccharomyces cerevisiae able to grow after inhibition of dTMP synthesis. Methods Cell Biol. 1975;11:287–294. doi: 10.1016/s0091-679x(08)60329-5. [DOI] [PubMed] [Google Scholar]
  10. Broach J. R., Strathern J. N., Hicks J. B. Transformation in yeast: development of a hybrid cloning vector and isolation of the CAN1 gene. Gene. 1979 Dec;8(1):121–133. doi: 10.1016/0378-1119(79)90012-x. [DOI] [PubMed] [Google Scholar]
  11. Chirgwin J. M., Przybyla A. E., MacDonald R. J., Rutter W. J. Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochemistry. 1979 Nov 27;18(24):5294–5299. doi: 10.1021/bi00591a005. [DOI] [PubMed] [Google Scholar]
  12. Davis R. W., Thomas M., Cameron J., St John T. P., Scherer S., Padgett R. A. Rapid DNA isolations for enzymatic and hybridization analysis. Methods Enzymol. 1980;65(1):404–411. doi: 10.1016/s0076-6879(80)65051-4. [DOI] [PubMed] [Google Scholar]
  13. Fitzgerald-Hayes M., Clarke L., Carbon J. Nucleotide sequence comparisons and functional analysis of yeast centromere DNAs. Cell. 1982 May;29(1):235–244. doi: 10.1016/0092-8674(82)90108-8. [DOI] [PubMed] [Google Scholar]
  14. Grivell A. R., Jackson J. F. Thymidine kinase: evidence for its absence from Neurospora crassa and some other micro-organisms, and the relevance of this to the specific labelling of deoxyribonucleic acid. J Gen Microbiol. 1968 Dec;54(2):307–317. doi: 10.1099/00221287-54-2-307. [DOI] [PubMed] [Google Scholar]
  15. Hinnen A., Hicks J. B., Fink G. R. Transformation of yeast. Proc Natl Acad Sci U S A. 1978 Apr;75(4):1929–1933. doi: 10.1073/pnas.75.4.1929. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Ito H., Fukuda Y., Murata K., Kimura A. Transformation of intact yeast cells treated with alkali cations. J Bacteriol. 1983 Jan;153(1):163–168. doi: 10.1128/jb.153.1.163-168.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Jimenez A., Davies J. Expression of a transposable antibiotic resistance element in Saccharomyces. Nature. 1980 Oct 30;287(5785):869–871. doi: 10.1038/287869a0. [DOI] [PubMed] [Google Scholar]
  18. Kingsman A. J., Clarke L., Mortimer R. K., Carbon J. Replication in Saccharomyces cerevisiae of plasmid pBR313 carrying DNA from the yeast trpl region. Gene. 1979 Oct;7(2):141–152. doi: 10.1016/0378-1119(79)90029-5. [DOI] [PubMed] [Google Scholar]
  19. Little J. G., Haynes R. H. Isolation and characterization of yeast mutants auxotrophic for 2'-deoxythymidine 5'-monophosphate. Mol Gen Genet. 1979 Jan 10;168(2):141–151. doi: 10.1007/BF00431440. [DOI] [PubMed] [Google Scholar]
  20. O'Callaghan C. H., Morris A., Kirby S. M., Shingler A. H. Novel method for detection of beta-lactamases by using a chromogenic cephalosporin substrate. Antimicrob Agents Chemother. 1972 Apr;1(4):283–288. doi: 10.1128/aac.1.4.283. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Roggenkamp R., Kustermann-Kuhn B., Hollenberg C. P. Expression and processing of bacterial beta-lactamase in the yeast Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 1981 Jul;78(7):4466–4470. doi: 10.1073/pnas.78.7.4466. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Smith S. L., Stone D., Novak P., Baccanari D. P., Burchall J. J. R plasmid dihydrofolate reductase with subunit structure. J Biol Chem. 1979 Jul 25;254(14):6222–6225. [PubMed] [Google Scholar]
  23. St John T. P., Davis R. W. The organization and transcription of the galactose gene cluster of Saccharomyces. J Mol Biol. 1981 Oct 25;152(2):285–315. doi: 10.1016/0022-2836(81)90244-8. [DOI] [PubMed] [Google Scholar]
  24. Stinchcomb D. T., Mann C., Davis R. W. Centromeric DNA from Saccharomyces cerevisiae. J Mol Biol. 1982 Jun 25;158(2):157–190. doi: 10.1016/0022-2836(82)90427-2. [DOI] [PubMed] [Google Scholar]
  25. Stinchcomb D. T., Struhl K., Davis R. W. Isolation and characterisation of a yeast chromosomal replicator. Nature. 1979 Nov 1;282(5734):39–43. doi: 10.1038/282039a0. [DOI] [PubMed] [Google Scholar]
  26. Storms R. K., Holowachuck E. W., Friesen J. D. Genetic complementation of the Saccharomyces cerevisiae leu2 gene by the Escherichia coli leuB gene. Mol Cell Biol. 1981 Sep;1(9):836–842. doi: 10.1128/mcb.1.9.836. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Struhl K., Stinchcomb D. T., Scherer S., Davis R. W. High-frequency transformation of yeast: autonomous replication of hybrid DNA molecules. Proc Natl Acad Sci U S A. 1979 Mar;76(3):1035–1039. doi: 10.1073/pnas.76.3.1035. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Swift G., McCarthy B. J., Heffron F. DNA sequence of a plasmid-encoded dihydrofolate reductase. Mol Gen Genet. 1981;181(4):441–447. doi: 10.1007/BF00428733. [DOI] [PubMed] [Google Scholar]
  29. Uhlin B. E., Nordström K. A runaway-replication mutant of plasmid R1drd-19: temperature-dependent loss of copy number control. Mol Gen Genet. 1978 Oct 4;165(2):167–179. doi: 10.1007/BF00269904. [DOI] [PubMed] [Google Scholar]
  30. Vieira J., Messing J. The pUC plasmids, an M13mp7-derived system for insertion mutagenesis and sequencing with synthetic universal primers. Gene. 1982 Oct;19(3):259–268. doi: 10.1016/0378-1119(82)90015-4. [DOI] [PubMed] [Google Scholar]
  31. Wickner R. B. Mutants of Saccharomyces cerevisiae that incorporate deoxythymidine 5'-monophosphate into DNA in vivo. Methods Cell Biol. 1975;11:295–302. doi: 10.1016/s0091-679x(08)60330-1. [DOI] [PubMed] [Google Scholar]
  32. Zalkin H., Yanofsky C. Yeast gene TRP5: structure, function, regulation. J Biol Chem. 1982 Feb 10;257(3):1491–1500. [PubMed] [Google Scholar]
  33. Zaret K. S., Sherman F. DNA sequence required for efficient transcription termination in yeast. Cell. 1982 Mar;28(3):563–573. doi: 10.1016/0092-8674(82)90211-2. [DOI] [PubMed] [Google Scholar]

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