Substrate specificity for the synthesis of cyclic Fatty acids by a flaxseed extract.
Plant Physiol
; 63(3): 490-4, 1979 Mar.
Article
en En
| MEDLINE
| ID: mdl-16660754
12-Oxo-cis-10,15-phytodienoic acid is an enzymic product obtained from incubations of (9, 12, 15)-linolenic acid with extracts of flaxseed (Linum usitatissimum L.). 13-l-Hydroperoxy-cis-9, 15-trans-11-octadecatrienoic acid, a product of lipoxygenase catalysis, was an intermediate in the enzymic synthesis of 12-oxo-cis-10, 15-phytodienoic acid from (9, 12, 15)-linolenic acid. Substrate specificity studies showed that n-3,6,9 unsaturation was an absolute requirement for conversion of polyunsaturated fatty acids into analogous products containing a cyclopentenone ring. Fatty acids with 18, 20, or 22 carbons that satisfied this requirement were effective substrates. The optimum activity of the enzyme from flaxseed was at pH 7.2.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Plant Physiol
Año:
1979
Tipo del documento:
Article
Pais de publicación:
Estados Unidos