carotenoid phi-ring synthase EC#: 1.3.99.39; ChemWhat Code: 1374244
| Product Name | carotenoid phi-ring synthase |
| Example Structure | ![]() |
| Synonyms | crtU, CT0323, gamma-carotene desaturase |
| EC Number | 1.3.99.39 |
| CAS Registry Number | |
| Comments | The enzyme, found in green sulfur bacteria, some cyanobacteria and some actinobacteria, introduces additional double bonds to the carotenoid ¦Â-end group, leading to aromatization of the ionone ring. As a result, one of the methyl groups at C-1 is transferred to position C-2. It is involved in the biosynthesis of carotenoids with ¦Õ-type aromatic end groups such as chlorobactene, ¦Â-isorenieratene, and isorenieratene. |
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