EC Number |
Substrates |
Products |
Reversibility |
---|
1.14.19.30 | (7Z)-octadec-7-enoic acid + ferrocytochrome b5 + O2 + H+ |
5% conversion |
(5Z,7Z)-octadeca-5,7-dienoic acid + ferricytochrome b5 + H2O |
- |
? |
1.14.19.30 | (8Z,11Z,14Z)-eicosa-8,11,14-trienoyl-[glycerolipid] + ferrocytochrome b5 + O2 + H+ |
- |
(5Z,8Z,11Z,14Z)-eicosatetra-5,8,11,14-tetraenoyl-[glycerolipid] + ferricytochrome b5 + H2O |
- |
? |
1.14.19.30 | (8Z,11Z,14Z)-icosa-8,11,14-trienoyl-[glycerolipid] + ferrocytochrome b5 + O2 + H+ |
- |
(5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoyl-[glycerolipid] + ferricytochrome b5 + H2O |
- |
? |
1.14.19.30 | (8Z,11Z,14Z,17Z)-eicosa-8,11,14,17-tetraenoyl-[glycerolipid] + ferrocytochrome b5 + O2 + H+ |
best substrate |
(5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14,17-pentaenoyl-[glycerolipid] + ferricytochrome b5 + H2O |
- |
? |
1.14.19.30 | (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoyl-[glycerolipid] + ferrocytochrome b5 + O2 + H+ |
- |
(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl-[glycerolipid] + ferricytochrome b5 + H2O |
- |
? |
1.14.19.30 | an (8Z,11Z,14Z)-icosa-8,11,14-trienoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ |
- |
a (5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoyl-[glycerolipid] + ferricytochrome b5 + 2 H2O |
- |
? |
1.14.19.30 | an (8Z,11Z,14Z)-icosa-8,11,14-trienoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ |
(8Z,11Z,14Z)-icosa-8,11,14-trienoate i.e. di-homo-gamma-linolenate. Expression of the enzyme in Saccharomyces cerevisiae results in the production of the DELTA5-containing fatty acid arachidonic acid in cells that are provided di-homo-gamma-linolenic acid |
a (5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoyl-[glycerolipid] + ferricytochrome b5 + 2 H2O |
(5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoate i.e. arachidonate |
? |
1.14.19.30 | an (8Z,11Z,14Z)-icosa-8,11,14-trienoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ |
(8Z,11Z,14Z)-icosa-8,11,14-trienoate i.e. di-homo-gamma-linolenate. The enzyme contains a cytochrome b5 domain that acts as the direct electron donor to the active site of the desaturase, and does not require an external cytochrome |
a (5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoyl-[glycerolipid] + ferricytochrome b5 + 2 H2O |
(5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-tetraenoate i.e. arachidonate |
? |
1.14.19.30 | an (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoyl-[glycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ |
- |
a (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl-[glycerolipid] + ferricytochrome b5 + 2 H2O |
- |
? |
1.14.19.30 | di-homo-gamma-linolenic acid + ferrocytochrome b5 + O2 + H+ |
55% conversion |
arachidonic acid + ferricytochrome b5 + H2O |
- |
? |