| 2 geranylgeranyl diphosphate→prephytoene diphosphate + diphosphate (EC 2.5.1.148; 2.5.1.32) |
| Synpcc7942_1984 (pys) |
Phytoene synthase:
prephytoene diphosphate→15-cis-phytoene + diphosphate (EC 2.5.1.32) |
| Synpcc7942_1984 (pys) |
| 15-cis-phytoene + a plastoquinone→15,9'-di-cis-phytofluene + a plastoquinol (EC 1.3.5.5) |
| No genes |
| 15,9'-di-cis-phytofluene + a plastoquinone→9,15,9'-tri-cis-ζ-carotene + a plastoquinol (EC 1.3.5.5) |
| No genes |
| 9,15,9'-tri-cis-ζ-carotene→9,9'-di-cis-ζ-carotene (spontaneous) (EC 5.2.1.12) |
| Synpcc7942_1979 |
| 9,9'-di-cis-ζ-carotene + an electron-transfer quinone→7,9,9'-cis-neurosporene + an electron-transfer quinol (EC 1.3.5.6) |
| Synpcc7942_1512 (crtQb) |
| 7,9,9'-cis-neurosporene + an electron-transfer quinone→prolycopene + an electron-transfer quinol (EC 1.3.5.6) |
| Synpcc7942_1512 (crtQb) |
| prolycopene→all-trans-lycopene (EC 5.2.1.13) |
| Synpcc7942_1246 (crtiso) |
Links:
Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information