Classification Term: 168940
Pentoses (ontology term: d9f1b93079dd3f4d56960aeca0baca21)
found 25 associated metabolites at sub_class metabolite taxonomy ontology rank level.
Ancestor: Monosaccharides
Child Taxonomies: There is no child term of current ontology term.
D-Arabinono-1,4-lactone
D-arabinono-1,4-lactone, also known as D-arabinonic acid, gamma-lactone, is a member of the class of compounds known as pentoses. Pentoses are monosaccharides in which the carbohydrate moiety contains five carbon atoms. D-arabinono-1,4-lactone is soluble (in water) and a very weakly acidic compound (based on its pKa). D-arabinono-1,4-lactone can be found in rice, which makes D-arabinono-1,4-lactone a potential biomarker for the consumption of this food product. D-arabinono-1,4-lactone may be a unique S.cerevisiae (yeast) metabolite.
Deoxyribose
Deoxyribose is an aldopentose, a monosaccharide containing five carbon atoms, and including an aldehyde functional group. It is derived from the pentose sugar ribose by the replacement of the hydroxyl group at the 2 position with hydrogen, leading to the net loss of an oxygen atom, and has chemical formula C5H10O4. In deoxyribose, the carbon furthest from the attached carbon is stripped of the oxygen atom in what would be a hydroxyl group in ribose. The common base adenine (a purine derivative) coupled to deoxyribose is called deoxyadenosine. The 5-triphosphate derivative of adenosine, commonly called adenosine triphosphate (ATP) is an important energy transport molecule in cells. -- Wikipedia [HMDB] Deoxyribose is an aldopentose, a monosaccharide containing five carbon atoms, and including an aldehyde functional group. It is derived from the pentose sugar ribose by the replacement of the hydroxyl group at the 2 position with hydrogen, leading to the net loss of an oxygen atom, and has chemical formula C5H10O4. In deoxyribose, the carbon furthest from the attached carbon is stripped of the oxygen atom in what would be a hydroxyl group in ribose. The common base adenine (a purine derivative) coupled to deoxyribose is called deoxyadenosine. The 5-triphosphate derivative of adenosine, commonly called adenosine triphosphate (ATP) is an important energy transport molecule in cells. -- Wikipedia. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Thyminose is an endogenous metabolite. Thyminose is an endogenous metabolite.
5-Methylthioribose 1-phosphate
5-Methylthioribose 1-phosphate belongs to the class of organic compounds known as pentoses. These are monosaccharides in which the carbohydrate moiety contains five carbon atoms. 5-Methylthioribose 1-phosphate is an intermediate in methionine biosynthesis. It is converted from 5-deoxy-5-methylthioadenosine by 5-deoxy-5-methylthioadenosine phosphorylase. Then it is converted to methionine (PMID: 2153115). In the methionine salvage pathway, 5-methylthioribose 1-phosphate isomerase (M1Pi) catalyzes the conversion of 5-methylthioribose 1-phosphate (MTR-1-P) into 5-methylthioribulose 1-phosphate (MTRu-1-P). 5-Methylthioribose 1-phosphate is an intermediate in methionine biosynthesis. It is converted from 5-Deoxy-5-methylthioadenosine by 5-Deoxy-5-methylthioadenosine phosphorylase. Then it is converted to methionine (PMID 2153115). In the methionine salvage pathway 5-methylthioribose 1-phosphate isomerase (M1Pi) catalyzes the conversion of 5-methylthioribose 1-phosphate (MTR-1-P) to 5-methylthioribulose 1-phosphate (MTRu-1-P) [HMDB]
L-Xylulose
L-Xylulose (CAS: 527-50-4), also known as L-threo-2-pentulose, is a ketopentose - a monosaccharide containing five carbon atoms, including a ketone functional group. It has the chemical formula C5H10O5. L-Xylulose accumulates in the urine of pentosuria patients. Since L-xylulose is a reducing sugar like D-glucose, pentosuria patients have been wrongly diagnosed in the past to be diabetic.
L-Ribulose
Ribulose is a ketopentose- a monosaccharide containing five carbon atoms, and including a ketone functional group. It has chemical formula C5H10O5. Two diastereomers are possible, D-ribulose (D-erythro-pentulose) and L-ribulose (L-erythro-pentulose). D-ribulose is an intermediate in the fungal pathway for D-arabitol production. [HMDB] L-Ribulose (CAS: 2042-27-5) is a ketopentose - a monosaccharide containing five carbon atoms, including a ketone functional group. It has the chemical formula C5H10O5.
Arabinofuranose
Arabinofuranose refers to the furanose form of arabinose, which is an optical isomer of arabinose. For biosynthetic reasons, most saccharides are almost always more abundant in nature as the "D" form, or structurally analogous to D-(+)-glyceraldehyde. However, L-arabinose is in fact more common than D-arabinose in nature and is found in nature as a component of biopolymers such as hemicellulose and pectin. [HMDB] Arabinofuranose refers to the furanose form of arabinose, which is an optical isomer of arabinose. For biosynthetic reasons, most saccharides are almost always more abundant in nature as the "D" form, or structurally analogous to D-(+)-glyceraldehyde. However, L-arabinose is in fact more common than D-arabinose in nature and is found in nature as a component of biopolymers such as hemicellulose and pectin.
Ribonolactone
Ribonolactone, also known as D-ribono-1,4-lactone is a five-membered form of ribonolactone having D-configuration. It has a role as a metabolite. It is a ribonolactone and a butan-4-olide. It derives from a D-ribonic acid. Ribonolactone belongs to the class of organic compounds known as pentoses. These are monosaccharides in which the carbohydrate moiety contains five carbon atoms. Ribonolactone is a metabolite normally not detectable in human biofluids; however, it has been found in the urine of patients with neuroblastoma. Ribonolactone is a metabolite normally not detectable in human biofluids; however, it has been found in the urine of patients with neuroblastoma. (PMID 699273) [HMDB] D-Ribonolactone is sugar lactone and an inhibitor of β-galactosidase of Escherichia coli with a Ki of 26 mM[1].
Xylose
2,3,4,5-tetrahydroxypentanal is a pentose, a polyol and a hydroxyaldehyde. DL-Arabinose is a natural product found in Arabidopsis thaliana, Streptomyces hainanensis, and other organisms with data available. Citrus Pectin is dietary fiber source, extracted from rind of citrus fruits, and used as a gelling agent. High molecular weight polysaccharides present in the cell walls of all plants. Pectins cement cell walls together. They are used as emulsifiers and stabilizers in the food industry. They have been tried for a variety of therapeutic uses including as antidiarrheals, where they are now generally considered ineffective, and in the treatment of hypercholesterolemia. D000074385 - Food Ingredients > D005503 - Food Additives > D010368 - Pectins Arabinose is an endogenous metabolite. Arabinose is an endogenous metabolite. DL-Xylose is an intermediate of organic synthesis. DL-Xylose is an intermediate of organic synthesis. D-Lyxose is an endogenous metabolite. L-(+)-Arabinose selectively inhibits intestinal sucrase activity in a noncompetitive manner and suppresses the plasma glucose increase due to sucrose ingestion. L-(+)-Arabinose selectively inhibits intestinal sucrase activity in a noncompetitive manner and suppresses the plasma glucose increase due to sucrose ingestion. L-Xylose (L-(-)-Xylose) is the levo-isomer of Xylose. Xylose is classified as a?monosaccharide?of the?aldopentose?type[1]. D-(+)-xylose (Xylose) is a natural compound that is catalyzed by xylose isomerase to form xylulose, which is a key step in the anaerobic ethanol fermentation of xylose. D-(+)-xylose (Xylose) is a natural compound that is catalyzed by xylose isomerase to form xylulose, which is a key step in the anaerobic ethanol fermentation of xylose.
Deoxyribose
Thyminose is an endogenous metabolite. Thyminose is an endogenous metabolite.
ribonolactone
A five-membered form of ribonolactone having D-configuration. D-Ribonolactone is sugar lactone and an inhibitor of β-galactosidase of Escherichia coli with a Ki of 26 mM[1].
Arabinose
Arabinose is an aldopentose – a monosaccharide containing five carbon atoms, and including an aldehyde (CHO) functional group. Arabinose is found in many foods, some of which are arabica coffee, olive, soy bean, and apple. Arabinose is an endogenous metabolite. Arabinose is an endogenous metabolite. D-arabinose is an endogenous metabolite. D-arabinose is an endogenous metabolite.
Ribose
D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1]. D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1]. D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1].