Crossref journal-article
American Society for Microbiology
Journal of Bacteriology (235)
Abstract

The regulation of several enzymes involved in pyrimidine biosynthesis in Neurospora crassa has been studied. Elevation of ATCase ( l -aspartate carbamoyltransferase) activity is found in all pyrimidine-requiring mutants when they are starved for uridine. DHOase (dihydroorotase) is an unstable enzyme, and it is impossible to conclude what type of regulation, if any, controls this enzyme. DHOdehase (dihydroorotate dehydrogenase) activity shows a marked elevation in uridine-starved pyr-2 cultures, a mutant blocked late in the pathway. Several mutants blocked early in the pathway show much smaller increases in DHOdehase activity and possible explanations for this are discussed. Differences in the modes of regulation of the pyrimidine biosynthetic pathways in various organisms are compared.

Bibliography

Caroline, D. F., & Davis, R. H. (1969). Pyrimidine Synthesis in Neurospora crassa: Regulation of Enzyme Activities. Journal of Bacteriology, 100(3), 1378–1384.

Authors 2
  1. Dina F. Caroline (first)
  2. Rowland H. Davis (additional)
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Dates
Type When
Created 5 years, 8 months ago (Jan. 3, 2020, 9:23 a.m.)
Deposited 4 years, 2 months ago (June 11, 2021, 10:30 p.m.)
Indexed 3 years, 1 month ago (Aug. 1, 2022, 2:06 a.m.)
Issued 55 years, 9 months ago (Dec. 1, 1969)
Published 55 years, 9 months ago (Dec. 1, 1969)
Published Print 55 years, 9 months ago (Dec. 1, 1969)
Funders 0

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@article{Caroline_1969, title={Pyrimidine Synthesis in Neurospora crassa: Regulation of Enzyme Activities}, volume={100}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.100.3.1378-1384.1969}, DOI={10.1128/jb.100.3.1378-1384.1969}, number={3}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Caroline, Dina F. and Davis, Rowland H.}, year={1969}, month=dec, pages={1378–1384} }