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Literature summary extracted from

  • Carlsson, A.S.; Thomaeus, S.; Hamberg, M.; Stymne, S.
    Properties of two multifunctional plant fatty acid acetylenase/desaturase enzymes (2004), Eur. J. Biochem., 271, 2991-2997.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.14.19.39 gene CREP1, expression in Arabidopsis thaliana and in Saccharomyces cerevisiae, determination and identification of fatty acid content of transgenic plant lines and yeast strains Crepis alpina

Organism

EC Number Organism UniProt Comment Textmining
1.14.19.39 Crepis alpina
-
 gene and enzyme CREP1
-

Reaction

EC Number Reaction Comment Organism Reaction ID
1.14.19.39 linoleoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ = crepenynyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H2O stereochemical mechanism in reaction with oleate Crepis alpina
a

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.19.39 linoleate + reduced acceptor + O2 enzyme is equally efficient with linoleate and oleate Crepis alpina crepenynate + acceptor + H2O
-
 ?
1.14.19.39 oleate + reduced acceptor + O2 enzyme is equally efficient with linoleate and oleate, via intermediates 9(Z),12(E)-octadecadienoate and 9,12(Z)-octadecadienoate, only the latter of which is further catalysed to give crepenynate, i.e. 9(Z)-octadecen-12-ynoate Crepis alpina crepenynate + acceptor + H2O product enantiomers in a ration of 3:1 ?

Synonyms

EC Number Synonyms Comment Organism
1.14.19.39 CREP1
-
 Crepis alpina
1.14.19.39 DELTA12 acetylenase
-
 Crepis alpina