Page last updated: 2024-10-06

superpathway of carotenoid biosynthesis in plants

Proteins (4)

ProteinSynonymsTaxonomy
Zeaxanthin epoxidase, chloroplasticEC 1.14.15.21; Beta-cyclohexenyl epoxidase; Xanthophyll epoxidaseCapsicum annuum
Violaxanthin de-epoxidase, chloroplasticEC 1.23.5.1Lactuca sativa (garden lettuce)
Neoxanthin synthase, chloroplasticEC 5.3.99.9Solanum tuberosum (potato)
Lycopene epsilon-cyclaseLactuca sativa (garden lettuce)

Compounds (23)

CompoundDescription
diphosphoric acid
hydronium ion
lycopeneA carotenoid and red pigment produced by tomatoes, other red fruits and vegetables, and photosynthetic algae. It is a key intermediate in the biosynthesis of other carotenoids, and has antioxidant, anti-carcinogenic, radioprotective, and anti-inflammatory properties.
beta caroteneA carotenoid that is a precursor of VITAMIN A. Beta carotene is administered to reduce the severity of photosensitivity reactions in patients with erythropoietic protoporphyria (PORPHYRIA, ERYTHROPOIETIC).
zeaxanthin
luteinA xanthophyll found in the major LIGHT-HARVESTING PROTEIN COMPLEXES of plants. Dietary lutein accumulates in the MACULA LUTEA.
WaterA clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
OxygenAn element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
PlastoquinonePolyunsaturated side-chain quinone derivative which is an important link in the electron transport chain of green plants during the photosynthetic conversion of light energy by photophosphorylation into the potential energy of chemical bonds.
Lycopene, (7-cis,7'-cis,9-cis,9'-cis)-isomer -
NADPNicotinamide adenine dinucleotide phosphate. A coenzyme composed of ribosylnicotinamide 5'-phosphate (NMN) coupled by pyrophosphate linkage to the 5'-phosphate adenosine 2',5'-bisphosphate. It serves as an electron carrier in a number of reactions, being alternately oxidized (NADP+) and reduced (NADPH). (Dorland, 27th ed)
NADPNicotinamide adenine dinucleotide phosphate. A coenzyme composed of ribosylnicotinamide 5'-phosphate (NMN) coupled by pyrophosphate linkage to the 5'-phosphate adenosine 2',5'-bisphosphate. It serves as an electron carrier in a number of reactions, being alternately oxidized (NADP+) and reduced (NADPH). (Dorland, 27th ed)
dithiothreitolA reagent commonly used in biochemical studies as a protective agent to prevent the oxidation of SH (thiol) groups and for reducing disulphides to dithiols.
antheraxanthinRN given refers to cpd without isomeric designation
cryptoxanthinsMono-hydroxylated xanthophylls formed from the hydroxylation of BETA-CAROTENE. Isomers include: beta-cryptoxanthin, alpha-cryptoxanthin, and zeinoxanthin. The alpha- and beta-cryptoxanthin are provitamin A precursors.
neoxanthinone of the main carotenoids in chloroplasts of higher plants and algae; RN given refers to (9'-cis)-isomer
geranylgeranyl pyrophosphateRN given refers to (E,E,E)-isomer
alpha-caroteneRN given refers to (all-E)-isomer; see also related record beta-carotene
zeta caroteneA carotenoid produced in most carotenogenic organisms. It is one of several sequentially synthesized molecules that are precursors to BETA CAROTENE.
plastoquinolreduced form of plastoquinone
phytoene, (15-cis)-isomer
neurosporene, (cis)-isomer
violaxanthina carotene epoxide that is precursor to capsanthin; one of 3 xanthophylls involved in evolution of plastids of green plants (oxygen evolution); 3 (violaxanthin, zeaxanthin & antheraxanthin) participate in series of photo-induced interconversions known as ''violaxanthin cycle''; structure; cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin, catalyzed by 9-cis-epoxycarotenoid dioxygenase, is the key regulatory step of ABSCISIC ACID biosynthesis