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Structure. 2003 Jan;11(1):87-97.

Binary structure of the two-domain (3R)-hydroxyacyl-CoA dehydrogenase from rat peroxisomal multifunctional enzyme type 2 at 2.38 A resolution.

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  • 1Biocenter Oulu and Department of Biochemistry, University of Oulu, P.O. Box 3000, FIN-90014 University of Oulu, Oulu, Finland.


The crystal structure of (3R)-hydroxyacyl-CoA dehydrogenase of rat peroxisomal multifunctional enzyme type 2 (MFE-2) was solved at 2.38 A resolution. The catalytic entity reveals an alpha/beta short chain alcohol dehydrogenase/reductase (SDR) fold and the conformation of the bound nicotinamide adenine dinucleotide (NAD(+)) found in other SDR enzymes. Of great interest is the separate COOH-terminal domain, which is not seen in other SDR structures. This domain completes the active site cavity of the neighboring monomer and extends dimeric interactions. Peroxisomal diseases that arise because of point mutations in the dehydrogenase-coding region of the MFE-2 gene can be mapped to changes in amino acids involved in NAD(+) binding and protein dimerization.

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