Browsing Colleges and Schools by Author "O'Donovan, Gerard A."
Now showing items 1-15 of 15
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Bencini, David Andre (Texas A&M University. Libraries, 1983)The aspartate- and ornithine- carbamoyl-transferase enzymes of Escherichia coli are characterized by physical, chemical, and genetic similarities which suggest that these enzymes have evolved from a common evolutionary ...
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Holmes, Earl Augustine (Texas A&M University. Libraries, )The development of flight muscle mitochondria is described for male Heliothis virescens (F.) by changes in respiratory and electron transport enzyme activities and incorporation of [superscript 14]C-1-leucine in vivo into ...
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Kedzie, Karen Marcella (Texas A&M University. Libraries, 1987)The ATCase from Escherichia coli has been the subject of extensive physical, biochemical and genetic studies. The exact natures of the intrasubunit and intersubunit interactions responsible for enzymatic function are still ...
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Bartlett, William Thomas (Texas A&M University. Libraries, 1976)Resistance to the proline analogue, azetidine-2-carboxylic acid, was used as a selection technique with E. coli in order to measure the production of mutations caused by low doses of X-radiation. An improved procedure was ...
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Knapp, John Andrew (Texas A&M University. Libraries, 1974)The effect on stability of differences in amino acid sequences has been studied in three proteins from a homologous group. Cow and horse ferricytochromes c, which differ by 3 residues, were used for the investigations ...
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Slaughter, Robert Stanley (Texas A&M University. Libraries, 1976)Orotidine 5'-monophosphate decarboxylase has been partially purified approximately 200-fold from Escherichia coli. The molecular weight determined by gel filtration was 56,000. The enzyme exhibited biphasic kinetics. A new ...
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McDaniel, Claude Steven (Texas A&M University. Libraries, 1985)A plasmid (pCMS1) of approximately 51 Kbp was isolated from a Pseudomonas diminuta strain (PD3) known to constitutively degrade a variety of organophosphate pesticides, including parathion. The plasmid was sized and partially ...
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Hussain Marouf, Baha Al-Deen (Texas A&M University. Libraries, )Pyrimidine metabolism in Lactobacilli was investigated with emphasis on L. fermenti. Pyrimidine, including thymine (thymidine) auxotrophs of L. fermenti, were specially isolated for this study. It was found that L. fermenti ...
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Womack, John Edwin (Texas A&M University. Libraries, )During rapid growth, the excretion of pyrimidines, predominantly uracil, is a common characteristic of both procaryotic and eucaryotic cells. In Escherichia coli there are some K12 strains which excrete orotic acid (OA) ...
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West, Thomas Patrick (Texas A&M University. Libraries, 1980)The regulation of the enzyme cytosine deaminase was investigated at the level of enzyme synthesis and at the level of enzyme activity in Salmonella typhimurium. Regulation of cytosine deaminase synthesis was examined to ...
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Williams, Jimmy Calvin (Texas A&M University. Libraries, )In Salmonella typhimurium it has been shown that the formation of carbamyl phosphate synthetase [E.C.2.7.2.5], whose gene is encoded by pyrA, is controlled by a cytidine nucleotide and arginine. The synthesis of aspartate ...
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Houghton, John Edgar (Texas A&M University. Libraries, 1986)Aspartate Transcarbamoylase (ATCase, carbamoylphosphate: L-aspartate carbamoyltransferase, EC 2.1.3.2) and Ornithine transcarbamoylase (OTCase, carbamoylphosphate: L-ornithine carbamoyltransferase, EC 2.1.3.3) both catalyze ...
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Alexander, Steve Stanley (Texas A&M University. Libraries, 1974)Histone F2a2 has been studied by sedimentation velocity, sedimentation equilibrium, viscosity, and optical rotatory dispersion (ORD) techniques. Measurements were performed as a function of temperature, and NaCl and GuHCl ...
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Kunkle, Albert C. (Texas A&M University. Libraries, 1971)The system: CuF₂-HF-H₂O has been investigated at O° C. Schreinemaker's method of wet residues was used in the analysis. The solid phases found were CuF₂-2H₂O and CuF₂. A method for the preparation of organic ...
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Nolan, Sidney David (Texas A&M University. Libraries, 1974)This exploratory study probes the travel information system from tourist's point of view. A pilot study was conducted to devise a survey questionnaire and an instrument, utilizing the semantic differential technique, to ...