Results 1 to 10 of about 108,982 (307)
Catabolite repression of the lac operon. Separate repression of two enzymes [PDF]
Biochemical Journal, 1969 1. Catabolite repression of β-galactosidase and of thiogalactoside transacetylase was studied in several strains of Escherichia coli K 12, in an attempt to show whether a single site within the structural genes of the lac operon co-ordinately controls translational repression for the two enzymes.
Michael D. Yudkin
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Yeast Malate Dehydrogenase: Enzyme Inactivation in Catabolite Repression [PDF]
European Journal of Biochemistry, 1967 The apparent inactivation of malate dehydrogenase activity in yeast following exposure to glucose has been studied. It was found to be prevented by inhibition of protein synthesis with cycloheximide, by addition of sodium azide, and by chilling the yeast to 0°.
James J. Ferguson +2 more
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Repression of the SUMO-conjugating enzyme UBC9 is associated with lowered double minutes and reduced tumor progression [PDF]
Cancer Biology & TherapyDouble minutes (DMs), extrachromosomal gene fragments found within certain tumors, have been noted to carry onco- and drug resistance genes contributing to tumor pathogenesis and progression.
Yusi Wang +15 more
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REPRESSION-DEPENDENT ALTERATION OF AN ARGININE ENZYME IN Escherichia coli [PDF]
Proceedings of the National Academy of Sciences, 1969 Treatment of susceptible Escherichia coli K12 derivatives with 0.4 M Mg ++ at 37°, potentiated by L-arginine or L-canavanine, leads to alteration of acetylornithine δ-transaminase. The alteration, obtained in the absence of protein synthesis and reversible at 0 or 37°,
Thomas Leisinger +2 more
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Catabolite‐Like Repression of Extracellular Enzyme Production in Vibrio parahaemolyticus [PDF]
Microbiology and Immunology, 1980 AbstractProduction of extracellular amylase and protease in Vibrio parahaemolyticus was repressed by various carbohydrates present in the medium. In addition, the protease production was repressed very strongly by peptones or casamino acids. Cyclic adenosine 3′, 5′‐monophosphate (cyclic AMP) added exogenously could reverse the repression of amylase ...
Shiro Iuchi, Shuji Tanaka
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TIGHT REPRESSION OF ELASTASE STRAIN K OVEREXPRESSION BY PT7 (A1/O4/O3) SHUTTLE EXPRESSION SYSTEM [PDF]
Science Heritage Journal, 2017 The PT7(A1/O4/O3) is a promoter resulted from construction of O3 and O4 operators into PA1, a promoter derived from coliphage T7, that evidenced lower the occupancy of the promoter by RNA polymerase and thereby increases the repression factor.
Nurul Hazwani +3 more
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Nature Communications, 2020 Polyamine metabolism is frequently dysregulated in cancers. Here, the authors show that a polyamine biosynthetic enzyme, spermine synthase, is overexpressed in colorectal cancers and cooperates with MYC to prevent cancer cell apoptosis by repression of ...
Yubin Guo +13 more
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Biotechnology for Biofuels and Bioproducts, 2023 Background Filamentous fungi possess an array of secreted enzymes to depolymerize the structural polysaccharide components of plant biomass. Sugar transporters play an essential role in nutrient uptake and sensing of extracellular signal molecules to ...
Shuying Gu +6 more
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LSD1 Facilitates Pro-Inflammatory Polarization of Macrophages by Repressing Catalase
Cells, 2021 The increased level of hydrogen peroxide accompanies some modes of macrophage specification and is linked to ROS-based antimicrobial activity of these phagocytes.
Maciej Sobczak +5 more
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Biotechnology for Biofuels, 2021 Background Cellulolytic enzyme production in filamentous fungi requires a release from carbon catabolite repression (CCR). The protein CRE1/CreA (CRE = catabolite responsive element) is a key transcription factor (TF) that is involved in CCR and ...
Yueyan Hu +5 more
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