Studies of Acetyl-Coa Carboxylase From Escherichia Coli
Davis, Mark Stephen
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https://hdl.handle.net/2142/86735
Description
Title
Studies of Acetyl-Coa Carboxylase From Escherichia Coli
Author(s)
Davis, Mark Stephen
Issue Date
1998
Doctoral Committee Chair(s)
Cronan, John E., Jr
Department of Study
Microbiology
Discipline
Microbiology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Molecular
Language
eng
Abstract
Preliminary functional assignments for the two subunits in the carboxyltransferase complex have been given. The alpha subunit (AccA) appears to have a structural role in the total ACC complex while the beta subunit (AccD) could contain the carboxyltransferase active site. The above conclusions are based on enzymatic deactivational studies with extracts only overproducing AccBCD with and without PEG (14%) compared to extracts with all four subunits overproduced (AccABCD) for the assignment of the AccA function. Extracts only overproducing AccD contained higher carboxyltransferase activity leading one to conclude the active site for the complex is contained in the AccD subunit.
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