acyl-CoA 5-desaturase EC#: 1.14.19.37; ChemWhat Code: 1375802
| Product Name | acyl-CoA 5-desaturase |
| Example Structure |  |
| Synonyms | acyl-CoA 5-desaturase (non-methylene-interrupted), acyl-coenzyme A C20 DELTA5-desaturase, AL10, AL21, C20 DELTA5cis-desaturase, DELTA5-desaturase |
| EC Number | 1.14.19.37 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from the plant Anemone leveillei, introduces a cis double bond at carbon 5 of acyl-CoAs that do not contain a double bond at position 8. In vivo it forms non-methylene-interrupted polyunsaturated fatty acids such as sciadonate and juniperonate. When expressed in Arabidopsis thaliana the enzyme could also act on unsaturated substrates such as palmitoyl-CoA. cf. EC 1.14.19.44 acyl-CoA (8-3)-desaturase. |
| Cofactor | |
| History | |
| Reactions | (1) (11Z,14Z)-icosa-11,14-dienoyl-CoA + reduced acceptor + O(2) = (5Z,11Z,14Z)-icosa-5,11,14-trienoyl-CoA + acceptor + 2 H(2)O. (2) (11Z,14Z,17Z)-icosa-11,14,17-trienoyl-CoA + reduced acceptor + O(2) = (5Z,11Z,14Z,17Z)-icosa-5,11,14,17-tetraenoyl-CoA + acceptor + 2 H(2)O. |
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