Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1975 Feb;121(2):571-6.
doi: 10.1128/jb.121.2.571-576.1975.

Urea transport in Saccharomyces cerevisiae

T G Cooper, R Sumrada

Urea transport in Saccharomyces cerevisiae

T G Cooper et al. J Bacteriol. 1975 Feb.

Abstract

Urea transport in Saccharomyces cerevisiae occurs by two pathways. The first mode of uptake is via an active transport system which: (i) has an apparent Km value of 14 muM, (ii) is absolutely dependent upon energy metabolism, (iii) requires pre-growth of the cultures in the presence of oxaluric acid, gratuitous inducer of the allantoin degradative enzymes, and (iv) is sensitive to nitrogen repression. The second mode of uptake which occurs at external urea concentrations in excess of 0.5 mM is via either passive or facilitated diffusion.

PubMed Disclaimer

References

    1. Biochem Biophys Res Commun. 1970 Aug 24;40(4):814-9 - PubMed
    1. J Biochem. 1962 Sep;52:149-54 - PubMed
    1. Antimicrob Agents Chemother. 1973 Jun;3(6):716-22 - PubMed
    1. J Biol Chem. 1972 Mar 10;247(5):1349-53 - PubMed
    1. Proc Natl Acad Sci U S A. 1967 Jul;58(1):225-8 - PubMed

Publication types

LinkOut - more resources