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https://hdl.handle.net/2440/71176
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Type: | Journal article |
Title: | Cytochrome P450 4A, peroxisomal enzymes and nicotinamide cofactors in koala liver |
Author: | Ngo, S. Kong, S. Kirlich, A. McKinnon, R. Stupans, I. |
Citation: | Comparative Biochemistry and Physiology C: Toxicology and Pharmacology, 2000; 127(3):327-334 |
Publisher: | Elsevier |
Issue Date: | 2000 |
ISSN: | 1532-0456 |
Statement of Responsibility: | S. Ngo, S. Kong, A. Kirlich, R.A. McKinnon and I. Stupans |
Abstract: | We have examined hepatic levels of microsomal lauric acid hydroxylase activity and cyanide-insensitive palmitoyl coenzyme A oxidative activity in koala (Phascolarctos cinereus) and tammar wallaby (Macropus eugenii) and compared our results to those determined in rat. Microsomal lauric acid hydroxylation was significantly higher in koala than in tammar wallaby or rat. However, cyanide-insensitive palmitoyl-CoA oxidation was absent in the koala. We have also determined the hepatic nicotinamide cofactors in these species. Hepatic nicotinamide-adenine dinucleotide (NAD) and the ratio of NAD/nicotinamide-adenine dinucleotide phosphate (NADP) were higher in koala than in tammar wallaby and rat liver. Reverse transcription of koala liver mRNA, followed by polymerase chain reaction using primers based on highly conserved areas in the CYP4A family led to the cloning of a partial, near full length, cDNA clone with approximately 70% nucleotide and deduced amino acid sequence identity to human CYP4A11. The CYP has been named CYP4A15. |
Keywords: | Liver Peroxisomes Microsomes, Liver Animals Marsupialia Humans Rats Niacinamide Palmitoyl Coenzyme A NAD Cytochrome P-450 Enzyme System Mixed Function Oxygenases DNA, Complementary Cloning, Molecular Species Specificity Amino Acid Sequence Base Sequence Molecular Sequence Data Female Male Cytochrome P-450 CYP4A |
Rights: | Copyright © 2000 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/S0742-8413(00)00160-2 |
Published version: | http://dx.doi.org/10.1016/s0742-8413(00)00160-2 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 5 |
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