Gene Association: NEIL1
UniProt Search:
NEIL1 (PROTEIN_CODING)
Function Description: nei like DNA glycosylase 1
found 37 associated metabolites with current gene based on the text mining result from the pubmed database.
Angelicin
Angelicin is a furanocoumarin. Angelicin is a natural product found in Cullen cinereum, Psoralea glabra, and other organisms with data available. Angelicin is found in coriander. Angelicin is a constituent of roots and leaves of angelica (Angelica archangelica). Angelicin is found in roots and on surface of parsnips and diseased celery.Angelicin is a furanocoumarin. It can be found in Bituminaria bituminosa. It is present in the list of IARC Group 3 carcinogens (Angelicin plus ultraviolet A radiation). (Wikipedia). See also: Angelica archangelica root (part of); Cullen corylifolium fruit (part of). Angelicin is found in coriander. Angelicin is a constituent of roots and leaves of angelica (Angelica archangelica). Angelicin is found in roots and on surface of parsnips and diseased celery.Angelicin is a furanocoumarin. It can be found in Bituminaria bituminosa. It is present in the list of IARC Group 3 carcinogens (Angelicin plus ultraviolet A radiation). (Wikipedia). Constituent of roots and leaves of angelica (Angelica archangelica). Found in roots and on surface of parsnips and diseased celery D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D007364 - Intercalating Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D002491 - Central Nervous System Agents > D000927 - Anticonvulsants Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM). Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM).
Psoralen
Psoralen is the simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia. It has a role as a plant metabolite. 8-methoxsalen and 5-methoxsalen are furocoumarins referred to collectively as psoralens that have photosensitizing activity and are used orally and topically in conjunction with ultraviolet irradiation for the therapy of psoriasis and vitiligo. Psoralens have been linked to a low rate of transient serum enzyme elevations during therapy and to rare instances of clinically apparent acute liver injury. Psoralen is a natural product found in Cullen cinereum, Ficus erecta var. beecheyana, and other organisms with data available. Psoralen is a furocoumarin that intercalates with DNA, inhibiting DNA synthesis and cell division. Psoralen is used in Photochemotherapy with high-intensity long-wavelength UVA irradiation. Psoralens are tricyclic furocumarins and have a strong tendency to intercalate with DNA base pairs. Irradiation of nucleic acids in the presence of psoralen with long wave UV (~360 nm) results in the 2+2 cyclo- addition of either of its two photoreactive sites with 5,6-carbon bonds of pyrimidines resulting in crosslinking double-stranded nucleic acids. Psoralen is found in carrot. Psoralen is found in common vegetables, e.g. parsnip, celery especially if diseased or `spoiled Psoralen is a significant mutagen and is used for this purpose in molecular biology research.Psoralen has been shown to exhibit anti-proliferative, anti-allergenic and anti-histamine functions (A7781, A7782, A7782).Psoralen belongs to the family of Furanocoumarins. These are polycyclic aromatic compounds containing a furan ring fused to a coumarin moeity. A naturally occurring furocoumarin, found in PSORALEA. After photoactivation with UV radiation, it binds DNA via single and double-stranded cross-linking. See also: Angelica keiskei top (part of); Cullen corylifolium fruit (part of). Psoralen, also known as psoralene, ficusin or manaderm, belongs to the class of organic compounds known as psoralens. These are organic compounds containing a psoralen moiety, which consists of a furan fused to a chromenone to for 7H-furo[3,2-g]chromen-7-one. Psoralen is the parent compound in a family of naturally occurring organic compounds known as the linear furanocoumarins. Psoralen is structurally related to coumarin by the addition of a fused furan ring and is considered as a derivative of umbelliferone. Biosynthetically, psoralen originates from coumarins in the shikimate pathway. Psoralen is produced exclusively by plants but can be found in animals that consume these plants. Psoralen can be found in several plant sources with Ficus carica (the common fig) being probably the most abundant source of psoralens. They are also found in small quantities in Ammi visnaga (bisnaga), Pastinaca sativa (parsnip), Petroselinum crispum (parsley), Levisticum officinale (lovage), Foeniculum vulgare (fruit, i.e., Fennel seeds), Daucus carota (carrot), Psoralea corylifolia (babchi), Apium graveolens (celery), and bergamot oil (bergapten, bergamottin). Psoralen is found in all citrus fruits. Psoralen is a well-known mutagen and is used for this purpose in molecular biology research. Psoralen intercalates into DNA and on exposure to ultraviolet (UVA) radiation can form monoadducts and covalent inter-strand cross-links (ICL) with thymines in the DNA molecule. Psoralen also functions as a drug. An important use of psoralen is in the treatment for skin problems such as psoriasis and, to a lesser extent, eczema and vitiligo. This treatment takes advantage of the high UV absorbance of psoralen. In treating these skin conditions psoralen is applied first to sensitise the skin, then UVA light is applied to clean up the skin problem. Psoralen has also been recommended for treating alopecia. The simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D003432 - Cross-Linking Reagents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics Found in common vegetables, e.g. parsnip, celery especies if diseased or `spoiled D003879 - Dermatologic Agents INTERNAL_ID 18; CONFIDENCE Reference Standard (Level 1) CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 18 Psoralen (Ficusin) is a coumarin isolated from the seeds of Fructus Psoraleae. Psoralen exhibits a wide range of biological properties, including anti-cancer, antioxidant, antidepressant, anticancer, antibacterial, and antiviral, et al[1]. Psoralen. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=66-97-7 (retrieved 2024-10-18) (CAS RN: 66-97-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
2-Hydroxyadenine
2-Hydroxyadenine (2-OH-Ade) is formed by hydroxyl radical attack on DNA bases and shows a genotoxicity in human, being the source of the mutations induced by reactive oxygen species. 2-OH-Ade in DNA is miscoding and elicits various mutations, and is a mutagenic in bacterial and mammalian cells. (Recent Research Developments in Biochemistry (2000)2:41-50) [HMDB] 2-Hydroxyadenine (2-OH-Ade) is formed by hydroxyl radical attack on DNA bases and shows a genotoxicity in human, being the source of the mutations induced by reactive oxygen species. 2-OH-Ade in DNA is miscoding and elicits various mutations, and is a mutagenic in bacterial and mammalian cells. (Recent Research Developments in Biochemistry (2000)2:41-50). Isoguanine is an oxopurine that is 3,7-dihydro-purin-2-one in which the hydrogen at position 6 is substituted by an amino group.
5-Hydroxymethyluracil
5-Hydroxymethyluracil (5hmU), also known as alpha-hydroxythymine, belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. 5hmU has been identified as a thymine base modification found in the genomes of a diverse range of organisms (PMID: 28137275). 5-hydroxymethyluracil has been detected in bacteriophages, dinoflagellates, leishmania, and in eukaryotic genomes where its level appears to be cell type-specific. 5-Hydroxymethyluracil arises from the oxidation of thymine. 5-Hydroxymethyluracil is produced by the enzyme thymine dioxygenase (EC 1.14.11.6) which catalyzes the chemical reaction thymine + 2-oxoglutarate + O2 <-> 5-hydroxymethyluracil + succinate + CO2. The 3 substrates of this enzyme are thymine, 2-oxoglutarate, and O2, whereas its 3 products are 5-hydroxymethyluracil, succinate, and CO2. The 5hmU base can also be generated by oxidation/hydroxylation of thymine by the Ten-Eleven-Translocation (TET) proteins or result from deamination of 5hmC (PMID: 29184924). DNA containing 5hmU has been reported to be more flexible and hydrophilic (PMID: 29184924). 5-Hydroxymethyluracil is an oxidation damage product derived from thymine or 5-methylcytosine. It is a product of thymine dioxygenase [EC 1.14.11.6]. (KEGG) D005765 - Gastrointestinal Agents > D000897 - Anti-Ulcer Agents D007155 - Immunologic Factors 5-Hydroxymethyluracil is a product of oxidative DNA damage. 5-Hydroxymethyluracil can be used as a potential epigenetic mark enhancing or inhibiting transcription with bacterial RNA polymerase. 5-Hydroxymethyluracil is a product of oxidative DNA damage. 5-Hydroxymethyluracil can be used as a potential epigenetic mark enhancing or inhibiting transcription with bacterial RNA polymerase.
5,6-Dihydrothymine
Dihydrothymine (CAS: 696-04-8) is an intermediate breakdown product of thymine. Dihydropyrimidine dehydrogenase catalyzes the reduction of thymine into 5,6-dihydrothymine; then dihydropyrimidinase hydrolyzes 5,6-dihydrothymine into N-carbamyl-beta-alanine. Finally, beta-ureidopropionase catalyzes the conversion of N-carbamyl-beta-alanine into beta-alanine. When present at abnormally high levels, dihydrothymine can be toxic, although the mechanism of toxicity is not clear. In particular, patients with dihydropyrimidinase deficiency exhibit highly increased concentrations of 5,6-dihydrouracil and 5,6-dihydrothymine; and moderately increased concentrations of uracil and thymine can be detected in urine. Dihydropyrimidinase deficiency is a disorder that can cause neurological and gastrointestinal problems in some affected individuals. The most common neurological abnormalities that occur are intellectual disability, seizures, weak muscle tone (hypotonia), abnormally small head size (microcephaly), and autistic behaviours that affect communication and social interaction. Gastrointestinal problems that occur in dihydropyrimidinase deficiency include the backflow of acidic stomach contents into the esophagus (gastroesophageal reflux) and recurrent episodes of vomiting. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 5,6-Dihydro-5-methyluracil (Dihydrothymine), an intermediate breakdown product of thymine, comes from animal or plants. 5,6-Dihydro-5-methyluracil (Dihydrothymine) can be toxic when present at abnormally high levels[1].
Thymine
Thymine, also known as 5-methyluracil, belongs to the class of organic compounds known as hydroxypyrimidines. These are organic compounds containing a hydroxyl group attached to a pyrimidine ring. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. Thymine was first isolated in 1893 by Albrecht Kossel and Albert Neumann from calves thymus glands, hence its name. Thymine is one of the 4 nuelcoebases found in DNA and is essential to all life. Thymine exists in all living species, ranging from bacteria to plants to humans. Thymine combined with deoxyribose creates the nucleoside deoxythymidine (also called thymidine) which when phosphorylated to dTDP can be incorporated into DNA via DNA polymerases. Thymidine can be phosphorylated with up to three phosphoric acid groups, producing dTMP (deoxythymidine monophosphate) dTDP and/or dTTP. In RNA thymine is replaced with uracil in most cases. In DNA, thymine binds to adenine via two hydrogen bonds to assist in stabilizing the nucleic acid structures. Within humans, thymine participates in a number of enzymatic reactions. In particular, thymine and deoxyribose 1-phosphate can be biosynthesized from thymidine through its interaction with the enzyme thymidine phosphorylase. In addition, thymine can be converted into dihydrothymine; which is mediated by the enzyme dihydropyrimidine dehydrogenase [NADP(+)]. One of the pyrimidine bases of living matter. Derivation: Hydrolysis of deoxyribonucleic acid, from methylcyanoacetylurea by catalytic reduction. Use: Biochemical research. (Hawleys Condensed Chemical Dictionary) Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map Corona-virus KEIO_ID T015 Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM.
5-Methyldeoxycytidine
5-Methyldeoxycytidine is a dinucleotide. Methylation of cytosine-guanine dinucleotide sequences (CpG dinucleotides) catalyzed by DNA methyltransferase, particularly in the 5′-promoter regions of mammalian genes, forms 5-methyldeoxycytidine (5-mdc) whose levels may regulate gene expression. Levels of 5-mdc and the expression of nm23-H1 (an anti-metastatic gene identified in and human cancer lines) are highly correlated with human hepatoma cells with different invasion activities. DNA hypermethylation is a common finding in malignant cells and has been explored as a therapeutic target for hypomethylating agents. The levels of 5-mdc in the urine of patients with breast cancer is not significantly different than controls. (PMID: 17044778, 17264127, 16799933) [HMDB] 5-Methyldeoxycytidine is a dinucleotide. Methylation of cytosine-guanine dinucleotide sequences (CpG dinucleotides) catalyzed by DNA methyltransferase, particularly in the 5′-promoter regions of mammalian genes, forms 5-methyldeoxycytidine (5-mdc) whose levels may regulate gene expression. Levels of 5-mdc and the expression of nm23-H1 (an anti-metastatic gene identified in and human cancer lines) are highly correlated with human hepatoma cells with different invasion activities. DNA hypermethylation is a common finding in malignant cells and has been explored as a therapeutic target for hypomethylating agents. The levels of 5-mdc in the urine of patients with breast cancer is not significantly different than controls. (PMID: 17044778, 17264127, 16799933). 5-Methyl-2'-deoxycytidine in single-stranded DNA can act in cis to signal de novo DNA methylation[1][2]. 5-Methyl-2'-deoxycytidine in single-stranded DNA can act in cis to signal de novo DNA methylation[1][2].
5,6-dihydrouracil
Dihydrouracil belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. Dihydrouracil is an intermediate breakdown product of uracil. Dihydrouracil exists in all living organisms, ranging from bacteria to plants to humans. Within humans, dihydrouracil participates in a number of enzymatic reactions. In particular, dihydrouracil can be biosynthesized from uracil; which is mediated by the enzyme dihydropyrimidine dehydrogenase [NADP(+)]. The breakdown of uracil is a multistep reaction that leads to the production of beta-alanine. The reaction process begins with the enzyme known as dihydropyrimidine dehydrogenase (DHP), which catalyzes the reduction of uracil into dihydrouracil. Then the enzyme known as dihydropyrimidinase hydrolyzes dihydrouracil into N-carbamyl-beta-alanine. Finally, beta-ureidopropionase catalyzes the conversion of N-carbamyl-beta-alanine into beta-alanine. There is at least one metabolic disorder that is associated with altered levels of dihydrouracil. In particular, dihydropyrimidinase deficiency is an inborn metabolic disorder that leads to highly increased concentrations of dihydrouracil and 5,6-dihydrothymine, and moderately increased concentrations of uracil and thymine in urine. Dihydropyrimidinase deficiency can cause neurological and gastrointestinal problems in some affected individuals (OMIM: 222748). In particular, patients with dihydropyrimidinase deficiency exhibit a number of neurological abnormalities including intellectual disability, seizures, weak muscle tone (hypotonia), an abnormally small head size (microcephaly), and autistic behaviours that affect communication and social interaction. Gastrointestinal problems that occur in dihydropyrimidinase deficiency include backflow of acidic stomach contents into the esophagus (gastroesophageal reflux) and recurrent episodes of vomiting. 3,4-dihydrouracil, also known as 2,4-dioxotetrahydropyrimidine or 5,6-dihydro-2,4-dihydroxypyrimidine, is a member of the class of compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. 3,4-dihydrouracil is soluble (in water) and a very weakly acidic compound (based on its pKa). 3,4-dihydrouracil can be found in a number of food items such as colorado pinyon, rocket salad (sspecies), wax gourd, and boysenberry, which makes 3,4-dihydrouracil a potential biomarker for the consumption of these food products. 3,4-dihydrouracil can be found primarily in blood, cerebrospinal fluid (CSF), saliva, and urine, as well as throughout most human tissues. 3,4-dihydrouracil exists in all living organisms, ranging from bacteria to humans. In humans, 3,4-dihydrouracil is involved in a couple of metabolic pathways, which include beta-alanine metabolism and pyrimidine metabolism. 3,4-dihydrouracil is also involved in several metabolic disorders, some of which include UMP synthase deficiency (orotic aciduria), dihydropyrimidinase deficiency, ureidopropionase deficiency, and carnosinuria, carnosinemia. Moreover, 3,4-dihydrouracil is found to be associated with dihydropyrimidine dehydrogenase deficiency and hypertension. Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2]. Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2].
Fusaric acid
D004791 - Enzyme Inhibitors > D019384 - Nucleic Acid Synthesis Inhibitors D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents Fusaric acid is a potent dopamine β-hydroxylase inhibitor.
2-Heptanone
2-Heptanone, also known as butylacetone or heptan-2-one, belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. Thus, 2-heptanone is considered to be an oxygenated hydrocarbon lipid molecule. 2-Heptanone is a ketone with the molecular formula C7H14O. 2-Heptanone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2-Heptanone exists in all living species, ranging from bacteria to humans. 2-Heptanone is a sweet, cinnamon, and coconut tasting compound. 2-Heptanone is found, on average, in the highest concentration within a few different foods, such as corns, cow milk, and peppermints. 2-Heptanone has also been detected, but not quantified in several different foods, such as tarragons, blackberries, tortilla chips, ceylon cinnamons, and evergreen blackberries. 2-Heptanone is one of the metabolites of n-heptane found in the urine of employees exposed to heptane in shoe and tire factories. 2-Heptanone, with regard to humans, has been found to be associated with several diseases such as ulcerative colitis, nonalcoholic fatty liver disease, crohns disease, and hepatic encephalopathy; 2-heptanone has also been linked to the inborn metabolic disorder celiac disease. It is a colorless to white liquid with a banana-like, fruity odor. Present in apple, morello cherry, feijoa fruit, grapes, quince, clove bud, cheeses, wines, black tea, raw shrimp, Ceylon cinnamon, rancid coconut oil and other foodstuffsand is also a minor constituent of plant oils. Flavour ingredient
Hydantoin
Hydantoin, also known as glycolylurea or 2,4-imidazolidinedione, is a member of the class of compounds known as imidazoles. Imidazoles are compounds containing an imidazole ring, which is an aromatic five-member ring with two nitrogen atoms at positions 1 and 3, and three carbon atoms. Hydantoin is soluble (in water) and a very weakly acidic compound (based on its pKa). Hydantoin can be found in a number of food items such as cabbage, common verbena, black radish, and brazil nut, which makes hydantoin a potential biomarker for the consumption of these food products. Hydantoin, or glycolylurea, is a heterocyclic organic compound with the formula CH2C(O)NHC(O)NH. It is a colorless solid that arises from the reaction of glycolic acid and urea. It is an oxidized derivative of imidazolidine. In a more general sense, hydantoins can refer to a groups and a class of compounds with the same ring structure as the parent. For example, phenytoin (mentioned below) has two phenyl groups substituted onto the number 5 carbon in a hydantoin molecule . COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
FAPy-adenine
Fapy-adenine is an oxidized DNA base. Oxidized nucleosides are biochemical markers for tumors, aging, and neurodegenerative diseases (PMID 15116424). Oxidative stress damage to DNA bases may contribute to neuronal loss in Alzheimers disease (AD). Increased levels were observed in parietal, temporal, occipital, and frontal lobe, superior temporal gyrus, and hippocampus areas of the brain in patients with AD. (PMID 9109533). Fapy-adenine is an oxidized DNA base. Oxidized nucleosides are biochemical markers for tumors, aging, and neurodegenerative diseases. (PMID 15116424) FAPy-adenine is an oxidized DNA base. Fapy-adenine shows an increased trend levels in the Alzheimer's disease brain. Oxidized nucleosides are biochemical markers for tumors, aging, and neurodegenerative diseases[1][2][3].
Furan
Furan is a member of the class of compounds known as furans. These are molecules containing a heterocyclic organic group consisting of a five-membered aromatic ring with four carbon atoms and one oxygen. Furan is aromatic because one of the lone pairs of electrons on the oxygen atom is delocalized into the ring, creating a 4n+2 aromatic system similar to benzene. Because of the aromaticity, furan is flat and lacks discrete double bonds. Furan is a colourless, flammable, highly volatile liquid with a boiling point close to room temperature (31 °C). It is soluble in common organic solvents, including alcohol, ether, and acetone, but is insoluble in water. It has a strong ethereal odour. Furan is found in heat-treated (e.g. cooked, roasted, baked, pasteurized, and sterilized) commercial foods and is produced through thermal degradation of natural food constituents (PMID:22641279). It can be found in roasted coffee, instant coffee, and processed baby foods (PMID:22641279). In particular, the highest furan levels can be detected in coffee, with mean values between 42 and 3 660 ng/g for brewed coffee and roasted coffee beans. Furan can also be detected at levels between 0.2 and 3.2 ng/g in infant formula, from 22 to 24 ng/g in baked beans, from 13 to 17 ng/g in meat products, and from 23 to 24 ng/g in soups. In soy sauce, furan is detectable at 27 ng/g (PMID:26483883). Research has indicated that coffee made in espresso makers and, above all, coffee made from capsules, contains more furan than that made in traditional drip coffee makers, although the levels are still within safe health limits. Various pathways have been reported for the formation of furan: (1) thermal degradation and/or thermal rearrangement of carbohydrates in the presence of amino acids, (2) thermal degradation of certain amino acids (aspartic acid, threonine, alpha-alanine, serine, and cysteine), (3) oxidation of ascorbic acid at higher temperatures, and (4) oxidation of polyunsaturated fatty acids and carotenoids (PMID:26483883). Several studies have reported that furan formation occurs to a large extent during the Maillard reaction. The Maillard reaction involves the thermal degradation and rearrangement of carbohydrates (i.e. non-enzymatic browning reactions during food processing and cooking). Reducing hexoses often go through the Maillard reaction in the presence of amino acids and produce reactive intermediates such as 1-deoxy- and 3-deoxyosones, aldotetrose, and 2-deoxy-3-keto-aldotetrose. 2-Deoxy-3-keto-aldotetrose typically goes through retro-aldol cleavage leading to 3-deoxyosone which undergoes alpha-dicarbonyl cleavage, followed by oxidation and decarboxylation to form 2-deoxyaldotetrose, which is a direct precursor of furan. In addition to the formation of furan via carbohydrate degradation, furan can also be formed through thermal degradation of certain amino acids. Specifically, the amino acids that can form acetaldehyde and glycolaldehyde can produce furan by aldol condensation and cyclization (PMID:26483883). Furan is toxic and may be carcinogenic. In particular, furan is a potent hepatotoxin and hepatocarcinogen in rodents, causing hepatocellular adenomas and carcinomas in rats and mice, and high incidences of cholangiocarcinomas in rats at doses ≥ 2 mg/kg (PMID:22641279).
4-Hydroxy-2-butenoic acid gamma-lactone
4-Hydroxy-2-butenoic acid gamma-lactone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D019440 - Anti-Obesity Agents > D001067 - Appetite Depressants 2(5H)-Furanone is an endogenous metabolite.
2-Deoxy-L-ribono-1,4-lactone
2-Deoxy-L-ribono-1,4-lactone is found in herbs and spices. 2-Deoxy-L-ribono-1,4-lactone is a constituent of the fruit of Foeniculum vulgare (fennel). Constituent of the fruit of Foeniculum vulgare (fennel). 2-Deoxy-L-ribono-1,4-lactone is found in herbs and spices.
5,6-dihydrothymine
Dihydrothymine, also known as 5,6-dihydro-5-methyluracil or 5,6-dihydrothymine, (S)-isomer, is a member of the class of compounds known as hydropyrimidines. Hydropyrimidines are compounds containing a hydrogenated pyrimidine ring (i.e. containing less than the maximum number of double bonds.). Dihydrothymine is soluble (in water) and a very weakly acidic compound (based on its pKa). Dihydrothymine can be found in a number of food items such as hyssop, arrowroot, nopal, and red rice, which makes dihydrothymine a potential biomarker for the consumption of these food products. Dihydrothymine can be found primarily in blood, cerebrospinal fluid (CSF), saliva, and urine, as well as in human prostate tissue. Dihydrothymine exists in all living organisms, ranging from bacteria to humans. In humans, dihydrothymine is involved in the pyrimidine metabolism. Dihydrothymine is also involved in few metabolic disorders, which include beta ureidopropionase deficiency, dihydropyrimidinase deficiency, MNGIE (mitochondrial neurogastrointestinal encephalopathy), and UMP synthase deficiency (orotic aciduria). Moreover, dihydrothymine is found to be associated with beta-ureidopropionase deficiency and dihydropyrimidinase deficiency. Dihydrothymine is a non-carcinogenic (not listed by IARC) potentially toxic compound. Dihydrothymine is an intermediate in the metabolism of thymine . Dihydropyrimidine dehydrogenase catalyzes the reduction of thymine to 5, 6-dihydrothymine then dihydropyrimidinase hydrolyzes 5, 6-dihydrothymine to N-carbamyl-b-alanine. Finally, beta-ureidopropionase catalyzes the conversion of N-carbamyl-b-alanine to beta-alanine. Accumulation of dihydrothymine in the body has been shown to be toxic (T3DB). COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 5,6-Dihydro-5-methyluracil (Dihydrothymine), an intermediate breakdown product of thymine, comes from animal or plants. 5,6-Dihydro-5-methyluracil (Dihydrothymine) can be toxic when present at abnormally high levels[1].
dihydrouracil
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2]. Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2].
fusaric acid
D004791 - Enzyme Inhibitors > D019384 - Nucleic Acid Synthesis Inhibitors D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents CONFIDENCE Fusarium verticilloides relative retention time with respect to 9-anthracene Carboxylic Acid is 0.535 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.533 Fusaric acid is a potent dopamine β-hydroxylase inhibitor.
Psoralen
D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D003432 - Cross-Linking Reagents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics relative retention time with respect to 9-anthracene Carboxylic Acid is 0.856 D003879 - Dermatologic Agents relative retention time with respect to 9-anthracene Carboxylic Acid is 0.851 Psoralen (Ficusin) is a coumarin isolated from the seeds of Fructus Psoraleae. Psoralen exhibits a wide range of biological properties, including anti-cancer, antioxidant, antidepressant, anticancer, antibacterial, and antiviral, et al[1]. Psoralen (Ficusin) is a coumarin isolated from the seeds of Fructus Psoraleae. Psoralen exhibits a wide range of biological properties, including anti-cancer, antioxidant, antidepressant, anticancer, antibacterial, and antiviral, et al[1].
5-Hydroxymethyluracil
A primary alcohol that is uracil bearing a hydroxymethyl substituent at the 5-position. D005765 - Gastrointestinal Agents > D000897 - Anti-Ulcer Agents D007155 - Immunologic Factors 5-Hydroxymethyluracil is a product of oxidative DNA damage. 5-Hydroxymethyluracil can be used as a potential epigenetic mark enhancing or inhibiting transcription with bacterial RNA polymerase. 5-Hydroxymethyluracil is a product of oxidative DNA damage. 5-Hydroxymethyluracil can be used as a potential epigenetic mark enhancing or inhibiting transcription with bacterial RNA polymerase.
thymine
A pyrimidine nucleobase that is uracil in which the hydrogen at position 5 is replaced by a methyl group. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; RWQNBRDOKXIBIV_STSL_0176_Thymine_2000fmol_180506_S2_LC02_MS02_138; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM.
Angelicin
D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D007364 - Intercalating Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D002491 - Central Nervous System Agents > D000927 - Anticonvulsants Origin: Plant, Coumarins Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM). Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM).
Dihydrothymine
A pyrimidone obtained by formal addition of hydrogen across the 5,6-position of thymine. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 5,6-Dihydro-5-methyluracil (Dihydrothymine), an intermediate breakdown product of thymine, comes from animal or plants. 5,6-Dihydro-5-methyluracil (Dihydrothymine) can be toxic when present at abnormally high levels[1].
FAPy-adenine
FAPy-adenine is an oxidized DNA base. Fapy-adenine shows an increased trend levels in the Alzheimer's disease brain. Oxidized nucleosides are biochemical markers for tumors, aging, and neurodegenerative diseases[1][2][3].
Ficusin
D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D003432 - Cross-Linking Reagents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics D003879 - Dermatologic Agents Psoralen (Ficusin) is a coumarin isolated from the seeds of Fructus Psoraleae. Psoralen exhibits a wide range of biological properties, including anti-cancer, antioxidant, antidepressant, anticancer, antibacterial, and antiviral, et al[1]. Psoralen (Ficusin) is a coumarin isolated from the seeds of Fructus Psoraleae. Psoralen exhibits a wide range of biological properties, including anti-cancer, antioxidant, antidepressant, anticancer, antibacterial, and antiviral, et al[1].
Angecin
D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D007364 - Intercalating Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D002491 - Central Nervous System Agents > D000927 - Anticonvulsants Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM). Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM).
FR-0140
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2]. Dihydrouracil (5,6-Dihydrouracil), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient[1][2].
Thymin
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM. Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM.
2(5H)-Furanone
D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D019440 - Anti-Obesity Agents > D001067 - Appetite Depressants 2(5H)-Furanone is an endogenous metabolite.
Imidazolidine-2,4-dione
COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
5-Methyl-2-deoxycytidine
5-Methyl-2'-deoxycytidine in single-stranded DNA can act in cis to signal de novo DNA methylation[1][2]. 5-Methyl-2'-deoxycytidine in single-stranded DNA can act in cis to signal de novo DNA methylation[1][2].
