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Purification and characterization of the Pseudomonas multivorans glucose-6-phosphate dehydrogenase active with nicotinamide adenine dinucleotide.
J Bacteriol. 1974 Dec; 120(3):1033-42.JB

Abstract

The Pseudomonas multivorans glucose-6-phosphate dehydrogenase (EC 1.1.1.49) active with nicotinamide adenine dinucleotide, which is inhibitable by adenosine-5'-triphosphate, was purified approximately 1,000-fold from extracts of glucose-grown bacteria, and characterized with respect to subunit composition, response to different inhibitory ligands, and certain other properties. The enzyme was found to be an oligomer composed of four subunits of about 60,000 molecular weight. Reduced nicotinamide adenine dinucleotide phosphate, but not reduced nicotinamide adenine dinucleotide, was found to be a potent inhibitor of its activity. The range of concentrations of reduced nicotinamide adenine dinucleotide phosphate over which inhibition occurred was about 100-fold lower than that for adenosine-5'-triphosphate. The data suggest that reduced nicotinamide adenine dinucleotide phosphate may play an important role in regulation of hexose phosphate metabolism in P. multivorans. Antisera prepared against the purified enzyme strongly inhibited its activity, but failed to inhibit the activity of the nicotinamide adenine dinucleotide phosphate-specific glucose-6-phosphate dehydrogenase which is also present in extracts of this bacterium. Immunodiffusion experiments confirmed the results of the enzyme inhibition studies, and failed to support the idea that the two glucose-6-phosphate dehydrogenase species from P. multivorans represent different oligomeric forms of the same protein.

Authors

No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

4154934

Citation

Vander Wyk, J C., and T G. Lessie. "Purification and Characterization of the Pseudomonas Multivorans Glucose-6-phosphate Dehydrogenase Active With Nicotinamide Adenine Dinucleotide." Journal of Bacteriology, vol. 120, no. 3, 1974, pp. 1033-42.
Vander Wyk JC, Lessie TG. Purification and characterization of the Pseudomonas multivorans glucose-6-phosphate dehydrogenase active with nicotinamide adenine dinucleotide. J Bacteriol. 1974;120(3):1033-42.
Vander Wyk, J. C., & Lessie, T. G. (1974). Purification and characterization of the Pseudomonas multivorans glucose-6-phosphate dehydrogenase active with nicotinamide adenine dinucleotide. Journal of Bacteriology, 120(3), 1033-42.
Vander Wyk JC, Lessie TG. Purification and Characterization of the Pseudomonas Multivorans Glucose-6-phosphate Dehydrogenase Active With Nicotinamide Adenine Dinucleotide. J Bacteriol. 1974;120(3):1033-42. PubMed PMID: 4154934.
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TY - JOUR T1 - Purification and characterization of the Pseudomonas multivorans glucose-6-phosphate dehydrogenase active with nicotinamide adenine dinucleotide. AU - Vander Wyk,J C, AU - Lessie,T G, PY - 1974/12/1/pubmed PY - 1974/12/1/medline PY - 1974/12/1/entrez SP - 1033 EP - 42 JF - Journal of bacteriology JO - J. Bacteriol. VL - 120 IS - 3 N2 - The Pseudomonas multivorans glucose-6-phosphate dehydrogenase (EC 1.1.1.49) active with nicotinamide adenine dinucleotide, which is inhibitable by adenosine-5'-triphosphate, was purified approximately 1,000-fold from extracts of glucose-grown bacteria, and characterized with respect to subunit composition, response to different inhibitory ligands, and certain other properties. The enzyme was found to be an oligomer composed of four subunits of about 60,000 molecular weight. Reduced nicotinamide adenine dinucleotide phosphate, but not reduced nicotinamide adenine dinucleotide, was found to be a potent inhibitor of its activity. The range of concentrations of reduced nicotinamide adenine dinucleotide phosphate over which inhibition occurred was about 100-fold lower than that for adenosine-5'-triphosphate. The data suggest that reduced nicotinamide adenine dinucleotide phosphate may play an important role in regulation of hexose phosphate metabolism in P. multivorans. Antisera prepared against the purified enzyme strongly inhibited its activity, but failed to inhibit the activity of the nicotinamide adenine dinucleotide phosphate-specific glucose-6-phosphate dehydrogenase which is also present in extracts of this bacterium. Immunodiffusion experiments confirmed the results of the enzyme inhibition studies, and failed to support the idea that the two glucose-6-phosphate dehydrogenase species from P. multivorans represent different oligomeric forms of the same protein. SN - 0021-9193 UR - https://www.unboundmedicine.com/medline/citation/4154934/Purification_and_characterization_of_the_Pseudomonas_multivorans_glucose_6_phosphate_dehydrogenase_active_with_nicotinamide_adenine_dinucleotide_ L2 - http://jb.asm.org/cgi/pmidlookup?view=long&pmid=4154934 DB - PRIME DP - Unbound Medicine ER -