Page last updated: 2024-10-24
xanthine dehydrogenase complex
Definition
Target type: cellularcomponent
A homodimeric protein complex having xanthine dehydrogenase activity. [GOC:hjd, PMID:8224915]
The xanthine dehydrogenase complex is a multimeric enzyme found in various organisms, including humans. It plays a crucial role in purine metabolism, specifically in the catabolism of hypoxanthine and xanthine to uric acid. The cellular component of the xanthine dehydrogenase complex is a complex entity that resides within the cytoplasm. The complex is anchored to the cytosolic side of the plasma membrane through its interaction with specific membrane proteins. This association with the plasma membrane allows for efficient substrate channeling and product release. The xanthine dehydrogenase complex is composed of two subunits: a catalytic subunit, xanthine dehydrogenase, and a regulatory subunit, molybdenum cofactor sulfurase (Moco sulfurase). The xanthine dehydrogenase subunit contains multiple domains, including the molybdenum cofactor binding domain, the FAD binding domain, and the NAD+ binding domain. These domains work in concert to facilitate the catalytic oxidation of hypoxanthine and xanthine to uric acid. The Moco sulfurase subunit plays a crucial role in the maturation of the molybdenum cofactor, a critical component of the xanthine dehydrogenase catalytic subunit. In summary, the cellular component of the xanthine dehydrogenase complex is a cytosolic entity associated with the plasma membrane. Its complex structure and the interplay of its subunits contribute to its essential role in purine metabolism.'
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Proteins (1)
| Protein | Definition | Taxonomy |
|---|---|---|
| Xanthine dehydrogenase/oxidase | A xanthine dehydrogenase/oxidase that is encoded in the genome of cow. [PMID:8708081, PRO:HJD] | Bos taurus (cattle) |
Compounds (55)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| protocatechuic acid | 3,4-dihydroxybenzoic acid : A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4. protocatechuic acid: RN given refers to parent cpd; structure | catechols; dihydroxybenzoic acid | antineoplastic agent; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor; human xenobiotic metabolite; plant metabolite |
| salicylic acid | Scalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL). | monohydroxybenzoic acid | algal metabolite; antifungal agent; antiinfective agent; EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor; keratolytic drug; plant hormone; plant metabolite |
| xanthine | 7H-xanthine : An oxopurine in which the purine ring is substituted by oxo groups at positions 2 and 6 and N-7 is protonated. 9H-xanthine : An oxopurine in which the purine ring is substituted by oxo groups at positions 2 and 6 and N-9 is protonated. | xanthine | Saccharomyces cerevisiae metabolite |
| beta-naphthoflavone | beta-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the f side of flavone. beta-Naphthoflavone: A polyaromatic hydrocarbon inducer of P4501A1 and P4501A2 cytochromes. (Proc Soc Exp Biol Med 1994 Dec:207(3):302-308) | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist |
| vanillic acid | vanillic acid : A monohydroxybenzoic acid that is 4-hydroxybenzoic acid substituted by a methoxy group at position 3. Vanillic Acid: A flavoring agent. It is the intermediate product in the two-step bioconversion of ferulic acid to vanillin. (J Biotechnol 1996;50(2-3):107-13). | methoxybenzoic acid; monohydroxybenzoic acid | plant metabolite |
| alpha-naphthoflavone | alpha-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the h side of flavone. A synthetic compound, it is an inhibitor of aromatase (EC 1.14.14.14). alpha-naphthoflavone: inhibits P4501A1 and P4501A2; stimulates some activities of P4503A4 | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist; aryl hydrocarbon receptor antagonist; EC 1.14.14.14 (aromatase) inhibitor |
| 1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose | 1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose : A galloyl-beta-D-glucose compound having five galloyl groups in the 1-, 2-, 3-, 4- and 6-positions. pentagalloylglucose: pentahydroxy gallic acid ester of glucose; a phytogenic antineoplastic agent and antibacterial agent | gallate ester; galloyl beta-D-glucose | anti-inflammatory agent; antineoplastic agent; geroprotector; hepatoprotective agent; plant metabolite; radiation protective agent; radical scavenger |
| 2,4,6-trihydroxybenzoic acid | hydroxybenzoic acid | ||
| 5-bromocytosine | |||
| geniposide | terpene glycoside | ||
| liquiritigenin | 4',7-dihydroxyflavanone : A dihydroxyflavanone in which the two hydroxy substituents are located at positions 4' and 7. liquiritigenin : A dihydroxyflavanone compound having the two hydroxy substituents at the 4'- and 7-positions. Isolated from the root of Glycyrrhizae uralensis, it is a selective agonist for oestrogen receptor beta. liquiritigenin: structure given in first source; isolated from Pterocarpus marsupium | 4',7-dihydroxyflavanone | hormone agonist; plant metabolite |
| aromadedrin | (+)-dihydrokaempferol : A tetrahydroxyflavanone having hydroxy groupa at the 3-, 4'-, 5- and 7-positions. aromadedrin: inhibits protein kinase C; the dihydro makes it a flavone rather than a flavonol | 4'-hydroxyflavanones; dihydroflavonols; secondary alpha-hydroxy ketone; tetrahydroxyflavanone | metabolite |
| febuxostat | febuxostat : A 1,3-thiazolemonocarboxylic acid that is 4-methyl-1,3-thiazole-5-carboxylic acid which is substituted by a 3-cyano-4-(2-methylpropoxy)phenyl group at position 2. It is an orally-active, potent, and selective xanthine oxidase inhibitor used for the treatment of chronic hyperuricaemia in patients with gout. Febuxostat: A thiazole derivative and inhibitor of XANTHINE OXIDASE that is used for the treatment of HYPERURICEMIA in patients with chronic GOUT. | 1,3-thiazolemonocarboxylic acid; aromatic ether; nitrile | EC 1.17.3.2 (xanthine oxidase) inhibitor |
| 1-acetyl-3,5-diphenyl-4,5-dihydro-(1h)-pyrazole | |||
| geniposidic acid | terpene glycoside | ||
| ferulic acid | ferulate : A monocarboxylic acid anion obtained by the deprotonation of the carboxy group of ferulic acid. | ferulic acids | anti-inflammatory agent; antioxidant; apoptosis inhibitor; cardioprotective agent; MALDI matrix material; plant metabolite |
| y-700 | |||
| trans-4-coumaric acid | 4-coumaric acid : A coumaric acid in which the hydroxy substituent is located at C-4 of the phenyl ring. hydroxycinnamic acid : Any member of the class of cinnamic acids carrying one or more hydroxy substituents. trans-4-coumaric acid : The trans-isomer of 4-coumaric acid. | 4-coumaric acid | food component; mouse metabolite; plant metabolite |
| 2'-hydroxychalcone | 2'-hydroxychalcone : A member of the class of chalcones that is trans-chalcone substituted by a hydroxy group at position 2'. | chalcones; phenols | anti-inflammatory agent |
| 2,2'-dihydroxychalcone | 2,2'-dihydroxychalcone: an antineoplastic agent; structure in first source | ||
| isoliquiritigenin | chalcones | antineoplastic agent; biological pigment; EC 1.14.18.1 (tyrosinase) inhibitor; GABA modulator; geroprotector; metabolite; NMDA receptor antagonist | |
| 1-benzyl-2-phenylbenzimidazole | 1-benzyl-2-phenylbenzimidazole: has antineoplastic activity; structure in first source | ||
| 6-(4-methoxyphenyl)pyrimidine-2,4-diamine | pyrimidines | ||
| silybin | |||
| 2',3-dihydroxychalcone | 2',3-dihydroxychalcone: structure in first source | ||
| quercetin | 7-hydroxyflavonol; pentahydroxyflavone | antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger | |
| acacetin | 5,7-dihydroxy-4'-methoxyflavone : A monomethoxyflavone that is the 4'-methyl ether derivative of apigenin. | dihydroxyflavone; monomethoxyflavone | anticonvulsant; plant metabolite |
| apigenin | Chamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia. | trihydroxyflavone | antineoplastic agent; metabolite |
| luteolin | 3'-hydroxyflavonoid; tetrahydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; c-Jun N-terminal kinase inhibitor; EC 2.3.1.85 (fatty acid synthase) inhibitor; immunomodulator; nephroprotective agent; plant metabolite; radical scavenger; vascular endothelial growth factor receptor antagonist | |
| luteolin-7-glucoside | luteolin 7-O-beta-D-glucoside : A glycosyloxyflavone that is luteolin substituted by a beta-D-glucopyranosyl moiety at position 7 via a glycosidic linkage. luteolin-7-glucoside: has both antiasthmatic and antineoplastic activities; has 3C protease inhibitory activity; isolated from Ligustrum lucidum | beta-D-glucoside; glycosyloxyflavone; monosaccharide derivative; trihydroxyflavone | antioxidant; plant metabolite |
| chrysoeriol | 4',5,7-trihydroxy-3'-methoxyflavone : The 3'-O-methyl derivative of luteolin. chrysoeriol: isolated from leaves of Eurya japonica & E. emarginata | monomethoxyflavone; trihydroxyflavone | antineoplastic agent; antioxidant; metabolite |
| quercetin 3-o-methyl ether | 3',4',5,7-tetrahydroxy-3-methoxyflavone : A tetrahydroxyflavone having the 4-hydroxy groups located at the 3'- 4'- 5- and 7-positions as well as a methoxy group at the 2-position. quercetin 3-O-methyl ether: from Rhamnus species; structure in first source | monomethoxyflavone; tetrahydroxyflavone | antimicrobial agent; metabolite |
| 3-methylkaempferol | 3-methoxyapigenin : A trihydroxyflavone that is apigenin substituted by a methoxy group at position 3. 3-methylkaempferol: structure in first source | monomethoxyflavone; trihydroxyflavone | plant metabolite |
| genistein | 7-hydroxyisoflavones | antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; geroprotector; human urinary metabolite; phytoestrogen; plant metabolite; tyrosine kinase inhibitor | |
| butein | chalcones; polyphenol | antineoplastic agent; antioxidant; EC 1.1.1.21 (aldehyde reductase) inhibitor; geroprotector; hypoglycemic agent; plant metabolite; radiosensitizing agent; tyrosine kinase inhibitor | |
| okanin | okanin : A member of the class of chalcones that is trans-chalcone substituted by hydroxy groups at positions 3, 4, 2', 3', and 4' respectively. okanin: hypoglycemic from Coreopsis tinctoria; structure in first source | benzenetriol; chalcones | plant metabolite |
| sulfuretin | sulfuretin: the chalcone C ring closes into a 5 instead of the more typical 6 membered ring leaving a phenyl methane at the 2 position instead of the typical phenyl | 1-benzofurans | |
| amentoflavone | biflavonoid; hydroxyflavone; ring assembly | angiogenesis inhibitor; antiviral agent; cathepsin B inhibitor; P450 inhibitor; plant metabolite | |
| baicalein | trihydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antibacterial agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antioxidant; apoptosis inducer; EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; EC 4.1.1.17 (ornithine decarboxylase) inhibitor; ferroptosis inhibitor; geroprotector; hormone antagonist; plant metabolite; prostaglandin antagonist; radical scavenger | |
| chrysin | chrysin : A dihydroxyflavone in which the two hydroxy groups are located at positions 5 and 7. | 7-hydroxyflavonol; dihydroxyflavone | anti-inflammatory agent; antineoplastic agent; antioxidant; EC 2.7.11.18 (myosin-light-chain kinase) inhibitor; hepatoprotective agent; plant metabolite |
| norathyriol | norathyriol : A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 6 and 7. Isolated from Garcinia mangostana and Maclura pomifera, it exhibits inhibitory activity against protein kinase C. norathyriol: from Gentinanaceae; has vasorelaxing action on rat thoracic aorta; structure given in first source | polyphenol; xanthones | antineoplastic agent; EC 2.7.11.13 (protein kinase C) inhibitor; plant metabolite |
| robinetin | robinetin : A pentahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 7, 3, 4' and 5'. robinetin: structure given in first source | 7-hydroxyflavonol; pentahydroxyflavone | plant metabolite |
| santin | santin : A trimethoxyflavone that is flavone substituted by methoxy groups at positions 3, 6 and 4' and hydroxy groups at positions 5 and 7 respectively. santin: from Tanacetum microphyllum; structure given in first source | dihydroxyflavone; trimethoxyflavone | plant metabolite |
| scutellarein | scutellarein : Flavone substituted with hydroxy groups at C-4', -5, -6 and -7. scutellarein: aglycone of scutellarin from Scutellaria baicalensis; carthamidin is 2S isomer of scutellarein; do not confuse with isoscutellarein and/or isocarthamidin which are respective regioisomers, or with the scutelarin protein | tetrahydroxyflavone | metabolite |
| wogonin | wogonin : A dihydroxy- and monomethoxy-flavone in which the hydroxy groups are positioned at C-5 and C-7 and the methoxy group is at C-8. wogonin: structure in first source | dihydroxyflavone; monomethoxyflavone | angiogenesis inhibitor; antineoplastic agent; cyclooxygenase 2 inhibitor; plant metabolite |
| 4-hydroxychalcone | 4-hydroxychalcone : A member of the class of chalcones that is trans-chalcone substituted by a hydroxy group at position 4. 4-hydroxychalcone: structure in first source | chalcones; phenols | antihypertensive agent; plant metabolite |
| topiroxostat | FYX-051: xanthine oxidoreductase inhibitor | ||
| 4',5,7-trihydroxy-3,6-dimethoxyflavone | viscosine: a GABA-A receptor agonist with anxiolytic and anticonvulsant activities; isolated from Dodonaea viscosa; structure in first source | ||
| 2',4'-dihydroxychalcone | 2',4'-dihydroxychalcone: RN given refers to (E)-isomer; RN for cpd without isomeric designation not available 6/89; structure given in first source | ||
| 4,4'-dihydroxychalcone | 4,4'-dihydroxychalcone: structure | ||
| 2,4,2'-trihydroxychalcone | 2,4,2'-trihydroxychalcone: structure in first source | ||
| 3-nitrobenzaldehyde isonicotinoylhydrazone | 3-nitrobenzaldehyde isonicotinoylhydrazone: structure in first source | ||
| sesone | 7-deazaxanthine: structure in first source | ||
| allopurinol | allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring. Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms. | nucleobase analogue; organic heterobicyclic compound | antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger |
| 2-amino-4-hydroxy-6-formylpteridine | 2-amino-4-hydroxy-6-formylpteridine: pteridine precursor in biosynthesis of dihydropteroate; structure 6-formylpterin : Pterin carrying a formyl group at position 6. | aldehyde; pterins | EC 1.17.3.2 (xanthine oxidase) inhibitor; reactive oxygen species generator |