Results 231 to 240 of about 129,688 (259)

The induction and repression of the enzymes of purine breakdown in Aspergillus nidulans

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1968
Abstract The enzymes of purine breakdown have been assayed in wild-type and various mutant strains of Aspergillus nidulans . Most of these enzymes are markedly inducible and these data show which metabolites are involved in the induction of each enzyme.
C, Scazzocchio, A J, Darlington
openaire   +2 more sources

Glucose repression and induction of enzyme synthesis in rat liver

Advances in Enzyme Regulation, 1964
Summary Glucose has long been known as a key metabolite in intermediary metabolism. Its importance as a regulator of protein synthesis is emphasized by its ability to repress the induced synthesis of threonine dehydrase and ornithine transaminase in rat liver.
H C, Pitot, C, Peraino, N, Pries, A L, Kennan   +3 more
openaire   +2 more sources

Repression and De-repression of Enzyme Synthesis as a Possible Explanation of some Aspects of Drug Action

Nature, 1961
ACCORDING to recent theories, the induction of enzyme synthesis occurs as a result of the displacement from an enzyme-forming system of a natural repressor1. For example, the synthesis of alkaline phosphatase by E. coli is normally repressed by inorganic phosphate2.
exaly   +2 more sources

Periodic enzyme synthesis: Reconsideration of the theory of oscillatory repression

Journal of Theoretical Biology, 1979
Abstract The period of oscillation in a negative feedback loop is shown to be much longer than the half-life of the most stable element of the loop. This places a severe constraint on the theory that stepwise increases in enzyme activity are caused by periodic repression of enzyme synthesis.
openaire   +2 more sources

Repression of an enzyme of purine biosynthesis in L cells

Biochimica et Biophysica Acta, 1963
D P, NIERLICH, E, MCFALL
openaire   +3 more sources

Biosynthese eines Enzyms. Information, Induktion, Repression

Angewandte Chemie, 1959
AbstractDie genetische und biochemische Untersuchung des Systems, das bei Escherichia coli für die Synthese der β‐Galactosidase verantwortlich ist, ergab, daß die Fähigkeit zur Enzymsynthese von einem Gen bestimmt wird, das offenbar die gesamte Information über die Struktur des Proteinmoleküls enthält. Ein zweites Gen, dem ersten unmittelbar benachbart,
openaire   +1 more source

Activation of tyrosine analogs in relation to enzyme repression

Biochemical and Biophysical Research Communications, 1965
J M, Ravel, M N, White, W, Shive
openaire   +2 more sources

Enzyme Repression

2011
openaire   +1 more source

The E. coli bio operon: Transcriptional repression by an essential protein modification enzyme

Cell, 1989
John E Cronan
exaly  

[Catabolic repression and enzyme repression by molecular hydrogen in Hydrogenomonas].

Archiv fur Mikrobiologie, 1969
F, Blackkolb, H G, Schlegel
openaire   +1 more source