Journal article
Purification and characterization of diamine oxidase from clover leaves
Phytochemistry, Vol.26(3), pp.641-643
1987
Abstract
Diamine oxidase (DAO, EC 1.4.3.6) was purified 135-fold from leaves of subterranean clover (Trifolium subterraneum L. cv Seaton Park) and three isoenzymes were identified. The native enzyme has an M of ca 150 000 and comprises two subunits both having an M, of 80 000. Clover DAO has a broad specificity range and is inhibited by copper ligands and reagents reactive towards carbonyl groups. Copper is essential for enzyme activity with the apoenzyme being reactivated specifically by copper. The enzyme has a broad pH optimum from pH 7-8 and an activation energy of 47 kJ/mol with 1,4-diaminobutane as substrate.
Details
- Title
- Purification and characterization of diamine oxidase from clover leaves
- Authors/Creators
- E. Delhaize (Author/Creator)J. Webb (Author/Creator)
- Publication Details
- Phytochemistry, Vol.26(3), pp.641-643
- Publisher
- Elsevier BV
- Identifiers
- 991005541917907891
- Copyright
- © 1987 Published by Elsevier Ltd.
- Murdoch Affiliation
- School of Mathematical and Physical Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.320 Molecular & Cell Biology - Polyamines & Paraquat
- 1.320.1324 Polyamines
- Web Of Science research areas
- Biochemistry & Molecular Biology
- Plant Sciences
- ESI research areas
- Plant & Animal Science