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. 1997 Jun 30;410(2-3):407-12.
doi: 10.1016/s0014-5793(97)00627-3.

Cloning and functional expression of human kynurenine 3-monooxygenase

D Alberati-Giani  1 , A M Cesura, C Broger, W D Warren, S Röver, P Malherbe
Affiliations
Free article

Cloning and functional expression of human kynurenine 3-monooxygenase

D Alberati-Giani et al. FEBS Lett. .
Free article

Abstract

Kynurenine 3-monooxygenase, an NADPH-dependent flavin monooxygenase, catalyses the hydroxylation of L-kynurenine to L-3-hydroxykynurenine. By hybridization screening using a cDNA probe encoding the entire exon 2 of Drosophila melanogaster kynurenine 3-monooxygenase, we isolated a 2.0 kb cDNA clone coding for the corresponding human liver enzyme. The deduced amino acid sequence of the human protein consists of 486 amino acids with a predicted molecular mass of 55,762 Da. Transfection of the human cDNA in HEK-293 cells resulted in the functional expression of the enzyme with kinetic properties similar to those found for the native human protein. RNA blot analysis of human tissues revealed the presence of a major mRNA species of approximately 2.0 kb in liver, placenta and kidney.

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