The Enzyme Database

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Accepted name: linoleoyl-lipid Δ12 conjugase (11E,13Z-forming)
Reaction: a linoleoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ = a (9Z,11E,13Z)-octadeca-9,11,13-trienoyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H2O
Glossary: punicate = (9Z,11E,13Z)-octadeca-9,11,13-trienoate
linoleate = (9Z,12Z)-octadeca-9,12-dienoate
Other name(s): Fac (gene name)
Systematic name: linoleoyl-lipid,ferrocytochrome-b5:oxygen 11,14 allylic oxidase (11E,13Z-forming)
Comments: The enzyme, characterized from the plants Punica granatum (pomegranate) and Trichosanthes kirilowii (Mongolian snake-gourd), converts a single cis double bond at position 12 of linoleate incorporated into phosphatidylcholine into conjugated 11-trans and 13-cis double bonds. cf. EC, Δ12 acyl-lipid conjugase (11E,13E-forming).
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc
1.  Hornung, E., Pernstich, C. and Feussner, I. Formation of conjugated Δ11Δ13-double bonds by Δ12-linoleic acid (1,4)-acyl-lipid-desaturase in pomegranate seeds. Eur. J. Biochem. 269 (2002) 4852–4859. [DOI] [PMID: 12354116]
2.  Iwabuchi, M., Kohno-Murase, J. and Imamura, J. Δ12-oleate desaturase-related enzymes associated with formation of conjugated trans11, cis13 double bonds. J. Biol. Chem. 278 (2003) 4603–4610. [DOI] [PMID: 12464604]
[EC created 2015]

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