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Egg plant lipoxygenase: Isolation and partial characterization
Author(s) -
Grossman S.,
Trop M.,
Avtalion R.,
Pinsky A.
Publication year - 1972
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02533163
Subject(s) - chemistry , lipoxygenase , chromatography , sephadex , cyanide , fraction (chemistry) , specific activity , electrophoresis , biochemistry , enzyme , organic chemistry
Abstract Egg plant lipoxygenase EC 1.13.1.13 when purified on Ecteola cellulose was resolved into two active fractions with most of the activity in the first fraction (A). This fraction when further purified on Sephadex G200‐120 had 20 times the specific activity of the crude material. It proved to be a single substance by electrophoresis and immunological technique. The pH optimum was 6.5. Its activity was specific for the cis,cis ‐1,4 pentadiene structure. There was no inhibition by cyanide, azide, EDTA or fluoride. Nordihydroguaretic acid, on the other hand, exhibited strong inhibition at 3 × 10 −3 M concentration. The specific antibody caused 50% inhibition.