Biomaterial Database

Multienzyme complexes of fatty acid oxidation from Escherichia coli K12 and from a mutant with a defective L-3-hydroxyacyl coenzyme A dehydrogenase. 1983

A Pramanik, and H Schulz

An Escherichia coli mutant (fadB64), with a defective L-3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35) which is unable to grow on long-chain fatty acids as the sole carbon source, was shown to possess a fatty acid oxidation complex that contains five beta-oxidation enzymes, including L-3-hydroxyacyl-CoA dehydrogenase. A comparative study of the complexes from the mutant, from its parental strain and from wild-type E. coli B demonstrated the immunological and gross structural identity of all three fatty acid oxidation complexes. A kinetic evaluation of the complexes led to the suggestion that the mutation may have affected the active site of L-3-hydroxyacyl-CoA dehydrogenase so that it is inactive with acetoacetyl-CoA as a substrate, but exhibits an increasing percentage of the parental dehydrogenase activity with increasing chain length of the substrate.

UI	MeSH Term	Description	Entries
D007535	Isomerases	A class of enzymes that catalyze geometric or structural changes within a molecule to form a single product. The reactions do not involve a net change in the concentrations of compounds other than the substrate and the product.(from Dorland, 28th ed) EC 5.	Isomerase
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D004746	Enoyl-CoA Hydratase	An enzyme that catalyzes reversibly the hydration of unsaturated fatty acyl-CoA to yield beta-hydroxyacyl-CoA. It plays a role in the oxidation of fatty acids and in mitochondrial fatty acid synthesis, has broad specificity, and is most active with crotonyl-CoA. EC 4.2.1.17.	3-Hydroxyacyl CoA Hydrolyases,3-Hydroxyacyl Dehydratases,Crotonase,Enoyl Hydrase,beta-Hydroxyacyl Dehydratases,Enoyl CoA Hydratases,beta-Hydroxyacyl-CoA Dehydrases,trans-2-Enoyl-Coenzyme A Hydratase,3 Hydroxyacyl CoA Hydrolyases,3 Hydroxyacyl Dehydratases,CoA Hydratases, Enoyl,CoA Hydrolyases, 3-Hydroxyacyl,Dehydrases, beta-Hydroxyacyl-CoA,Dehydratases, 3-Hydroxyacyl,Dehydratases, beta-Hydroxyacyl,Enoyl CoA Hydratase,Hydrase, Enoyl,Hydratase, Enoyl-CoA,Hydratase, trans-2-Enoyl-Coenzyme A,Hydratases, Enoyl CoA,Hydrolyases, 3-Hydroxyacyl CoA,beta Hydroxyacyl CoA Dehydrases,beta Hydroxyacyl Dehydratases,trans 2 Enoyl Coenzyme A Hydratase
D004926	Escherichia coli	A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.	Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005779	Immunodiffusion	Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.	Gel Diffusion Tests,Diffusion Test, Gel,Diffusion Tests, Gel,Gel Diffusion Test,Immunodiffusions,Test, Gel Diffusion,Tests, Gel Diffusion
D000102	Acetyl-CoA C-Acyltransferase	Enzyme that catalyzes the final step of fatty acid oxidation in which ACETYL COA is released and the CoA ester of a fatty acid two carbons shorter is formed.	3-Ketoacyl CoA Thiolase,3-Ketothiolase,Acetyl CoA Acyltransferase,Acetyl Coenzyme A Acyltransferase,beta-Ketothiolase,2-Methylacetoacetyl CoA Thiolase,3-Oxoacyl CoA Thiolase,3-Oxoacyl-Coenzyme A Thiolase,beta-Ketoacyl Thiolase,Acetyl CoA C Acyltransferase,Acyltransferase, Acetyl CoA,C-Acyltransferase, Acetyl-CoA,CoA Acyltransferase, Acetyl,CoA Thiolase, 2-Methylacetoacetyl,CoA Thiolase, 3-Ketoacyl,CoA Thiolase, 3-Oxoacyl,Thiolase, 2-Methylacetoacetyl CoA,Thiolase, 3-Ketoacyl CoA,Thiolase, 3-Oxoacyl CoA,Thiolase, 3-Oxoacyl-Coenzyme A,Thiolase, beta-Ketoacyl,beta Ketoacyl Thiolase,beta Ketothiolase
D015094	3-Hydroxyacyl CoA Dehydrogenases	Enzymes that reversibly catalyze the oxidation of a 3-hydroxyacyl CoA to 3-ketoacyl CoA in the presence of NAD. They are key enzymes in the oxidation of fatty acids and in mitochondrial fatty acid synthesis.	beta-Hydroxyacyl Dehydrogenases,3 Hydroxyacyl CoA Dehydrogenases,CoA Dehydrogenases, 3-Hydroxyacyl,Dehydrogenases, 3-Hydroxyacyl CoA,Dehydrogenases, beta-Hydroxyacyl,beta Hydroxyacyl Dehydrogenases
D019748	Carbon-Carbon Double Bond Isomerases	Enzymes that catalyze the shifting of a carbon-carbon double bond from one position to another within the same molecule. EC 5.3.3.	C-C Double Bond Isomerases,Carbon Carbon Double Bond Isomerases
D019998	Racemases and Epimerases	Enzymes that catalyze inversion of the configuration around an asymmetric carbon in a substrate having one (racemase) or more (epimerase) center(s) of asymmetry. (Dorland, 28th ed) EC 5.1.	Epimerase,Epimerases,Racemase,Racemases,Epimerases and Racemases
D064006	Dodecenoyl-CoA Isomerase	A carbon-carbon double bond isomerase that catalyzes the movement double bond from C3 to C2 of an unsaturated acyl-CoA. The enzyme plays a key role in allowing acyl-CoA substrates to re-enter the beta-oxidation pathway.	3,2-trans-Enoyl-CoA Isomerase,Acetylene-Allene Isomerase,Dodecenoyl-CoA delta-Isomerase,Dodecenoyl-Coenzyme A delta-Isomerase,Enoyl-CoA Isomerase,delta(3), delta(2)-Enoyl-CoA Isomerase,3,2 trans Enoyl CoA Isomerase,Acetylene Allene Isomerase,Dodecenoyl CoA Isomerase,Dodecenoyl CoA delta Isomerase,Dodecenoyl Coenzyme A delta Isomerase,Enoyl CoA Isomerase,Isomerase, 3,2-trans-Enoyl-CoA,Isomerase, Acetylene-Allene,Isomerase, Dodecenoyl-CoA,Isomerase, Enoyl-CoA,delta-Isomerase, Dodecenoyl-CoA,delta-Isomerase, Dodecenoyl-Coenzyme A