| EC |
1.14.19.42 |
| Accepted name: |
palmitoyl-[glycerolipid] 7-desaturase |
| Reaction: |
a 1-acyl-2-palmitoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-acyl-2-[(7Z)-hexadec-7-enoyl]-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O |
| Other name(s): |
FAD5 |
| Systematic name: |
1-acyl-2-palmitoyl-[glycerolipid],ferredoxin:oxygen oxidoreductase (7,8-cis-dehydrogenating) |
| Comments: |
The enzyme introduces a cis double bond at carbon 7 of a palmitoyl group attached to the sn-2 position of glycerolipids. The enzyme from the plant Arabidopsis thaliana is specific for palmitate in monogalactosyldiacylglycerol. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Kunst, L., Browse, J., Somerville, C.R. A mutant of Arabidopsis deficient in desaturation of palmitic acid in leaf lipids. Plant Physiol. 90 (1989) 943–947. [PMID: 16666902] |
| 2. |
Heilmann, I., Mekhedov, S., King, B., Browse, J. and Shanklin, J. Identification of the Arabidopsis palmitoyl-monogalactosyldiacylglycerol Δ7-desaturase gene FAD5, and effects of plastidial retargeting of Arabidopsis desaturases on the fad5 mutant phenotype. Plant Physiol. 136 (2004) 4237–4245. [DOI] [PMID: 15579662] |
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| [EC 1.14.19.42 created 2015] |
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