PMID:2950851
| Citation |
Chaudhuri, S, Lambert, JM, McColl, LA and Coggins, JR (1986) Purification and characterization of 3-dehydroquinase from Escherichia coli. Biochem. J. 239:699-704 |
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| Abstract |
A procedure has been developed for the purification of 3-dehydroquinase from Escherichia coli. Homogeneous enzyme with specific activity 163 units/mg of protein was obtained in 19% overall yield. The subunit Mr estimated from polyacrylamide-gel electrophoresis in the presence of sodium dodecyl sulphate was 29,000. The native Mr, estimated by gel permeation chromatography on Sephacryl S-200 (superfine) and on TSK G3000SW, was in the range 52,000-58,000, indicating that the enzyme is dimeric. The catalytic properties of the enzyme have been determined and shown to be very similar to those of the biosynthetic 3-dehydroquinase component of the arom multifunctional enzyme of Neurospora crassa. |
| Links | |
| Keywords |
Chromatography, Liquid; Electrophoresis, Polyacrylamide Gel; Escherichia coli/enzymology; Hydro-Lyases/isolation & purification; Hydro-Lyases/metabolism; Hydrogen-Ion Concentration; Kinetics; Neurospora crassa/enzymology |
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