These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


PUBMED FOR HANDHELDS

Search MEDLINE/PubMed


  • Title: Transformation of mouse fibroblasts to methotrexate resistance by a recombinant plasmid expressing a prokaryotic dihydrofolate reductase.
    Author: O'Hare K, Benoist C, Breathnach R.
    Journal: Proc Natl Acad Sci U S A; 1981 Mar; 78(3):1527-31. PubMed ID: 6262811.
    Abstract:
    A recombinant plasmid has been constructed for the expression of inserted DNA sequences coding for polypeptide chains using the simian virus 40 early promoter and splicing and polyadenylylation signals from the rabbit beta-globin gene. The coding regions for two prokaryotic methotrexate-resistant dihydrofolate reductases were introduced into the expression vector. When mouse fibroblasts were exposed to these recombinant plasmids, it was possible to select methotrexate-resistant clones that had integrated the plasmids and produced a chimeric RNA coding for the prokaryotic enzyme.
    [Abstract] [Full Text] [Related] [New Search]