EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.14.15.24 | Arabidopsis thaliana | Q9SZZ8 | - |
- |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
1.14.15.24 | leaf | - |
Arabidopsis thaliana | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.14.15.24 | alpha-carotene + reduced acceptor + H+ + O2 | - |
Arabidopsis thaliana | zeinoxanthin + acceptor + H2O | - |
? | |
1.14.15.24 | beta-carotene + 2 reduced ferredoxin [iron-sulfur] cluster + H+ + O2 | - |
Arabidopsis thaliana | beta-cryptoxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O | - |
? | |
1.14.15.24 | beta-carotene + 4 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + 2 O2 | overall reaction | Arabidopsis thaliana | zeaxanthin + 4 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O | zeaxanthin is beta,beta-carotene-3,3'-diol | ? | |
1.14.15.24 | beta-cryptoxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + H+ + O2 | - |
Arabidopsis thaliana | zeaxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O | - |
? | |
1.14.15.24 | additional information | the beta-hydroxylase is weakly (6%) active towards epsilon-rings in comparison to beta-rings | Arabidopsis thaliana | ? | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.14.15.24 | beta-hydroxylase (b1,b2) | - |
Arabidopsis thaliana |
EC Number | General Information | Comment | Organism |
---|---|---|---|
1.14.15.24 | malfunction | the homozygous b1/b2 double mutant does not show obvious growth defects and though beta-carotene-derived xanthophylls are reduced to 20% of wild type levels (much more than either b1 or b2 single mutant), the full complement of alpha- and beta-carotene-derived xanthophylls is still synthesized, albeit beta-carotene-derived xanthophylls are produced at lower levels in the double mutant | Arabidopsis thaliana |