Studies Concerning Asparagine Metabolism in Lactobacillus plantarum

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This study is concerned with the metabolism of L-asparagine in Lactobacillus plantarum (ATCC 8014). Theprimary area of investigation is the preliminary characterization of a previously unreported L-asparaginase enzyme in L. plantarum. This L-asparaginase was determined to be an inducible enzyme with variations in its activity level according to the L-asparagine level in the growth medium. L-Glutaminase could not be induced in this organism by L-glutamine, nor would L-glutamine induce the asparaginase activity. These and other studies with amino acid analogs demonstrated the high specificity of both induction and enzymic activity of the asparaginase. Various physical properties of the enzyme were ... continued below

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vi, 59 leaves: ill.

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McCue, Bette Ann May 1974.

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This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by UNT Libraries to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 68 times , with 4 in the last month . More information about this thesis can be viewed below.

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  • McCue, Bette Ann

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This study is concerned with the metabolism of L-asparagine in Lactobacillus plantarum (ATCC 8014). Theprimary area of investigation is the preliminary characterization of a previously unreported L-asparaginase enzyme in L. plantarum. This L-asparaginase was determined to be an inducible enzyme with variations in its activity level according to the L-asparagine level in the growth medium. L-Glutaminase could not be induced in this organism by L-glutamine, nor would L-glutamine induce the asparaginase activity. These and other studies with amino acid analogs demonstrated the high specificity of both induction and enzymic activity of the asparaginase. Various physical properties of the enzyme were studied. The enzyme was found to be inhibited by adenosine triphosphate (ATP). This inhibition appears to be cooperative in nature and of the type exhibited by allosteric enzymes. These studies should be confirmed on a highly purified enzyme as these preliminary experiments were performed using a crude cell-free extract.

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vi, 59 leaves: ill.

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  • May 1974

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  • June 24, 2015, 9:39 a.m.

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  • Aug. 25, 2016, 9:23 a.m.

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McCue, Bette Ann. Studies Concerning Asparagine Metabolism in Lactobacillus plantarum, thesis, May 1974; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc663794/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .