Reaction participants Show >> << Hide
- Name help_outline beta-zeacarotene Identifier CHEBI:27533 (Beilstein: 2571810) help_outline Charge 0 Formula C40H58 InChIKeyhelp_outline MICBIPJWKDDGNL-FILYMEKXSA-N SMILEShelp_outline CC(C)=CCC\C(C)=C\CC\C(C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(C)\C=C\C1=C(C)CCCC1(C)C 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 7,8-dihydro-β-carotene Identifier CHEBI:80427 Charge 0 Formula C40H58 InChIKeyhelp_outline ZWHNFQQCBBBUHX-RQJQFHIYSA-N SMILEShelp_outline C\C(CCC1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C=C/C=C(\C)/C=C/C=C(\C)/C=C/C1=C(C)CCCC1(C)C 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:67980 | RHEA:67981 | RHEA:67982 | RHEA:67983 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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The carotenoid 7,8-dihydro-psi end group can be cyclized by the lycopene cyclases from the bacterium Erwinia uredovora and the higher plant Capsicum annuum.
Takaichi S., Sandmann G., Schnurr G., Satomi Y., Suzuki A., Misawa N.
The genes for geranylgeranyl diphosphate synthase (crtE) and phytoene synthase (crtB) from the epiphytic bacterium Erwinia uredovora and the phytoene desaturase gene from the photosynthetic bacterium Rhodobacter capsulatus (Rc-crtI) were introduced into Escherichia coli, which resulted in the accu ... >> More
The genes for geranylgeranyl diphosphate synthase (crtE) and phytoene synthase (crtB) from the epiphytic bacterium Erwinia uredovora and the phytoene desaturase gene from the photosynthetic bacterium Rhodobacter capsulatus (Rc-crtI) were introduced into Escherichia coli, which resulted in the accumulation of the acyclic carotenoid, neurosporene. Further introduction of the lycopene cyclase gene from E. uredovora (crtY) or the higher plant Capsicum annuum (Icy) resulted in the production of a bicyclic carotenoid, 7,8-dihydro-beta-carotene, via monocyclic beta-zeacarotene. zeta-Carotene was also found to be cyclized to bicyclic 7,8,7',8'-tetrahydro-beta-carotene by the Erwinia cyclase. These results indicate that both lycopene cyclases can cyclize a 7,8-dihydro-psi end group to a 7,8-dihydro-beta end group, in addition to the usual cyclization of the psi end group to the beta end group. Furthermore, beta-carotene hydroxylase from Erwinia (CrtZ) was able to add a hydroxyl group to the 7,8-dihydro-beta end group and the beta end group. << Less
Eur. J. Biochem. 241:291-296(1996) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.