Classification Term: 168933
Amino sugars (ontology term: cdf9708a9b3437c0a9a964d63c2506b7)
found 51 associated metabolites at sub_class metabolite taxonomy ontology rank level.
Ancestor: Monosaccharides
Child Taxonomies: There is no child term of current ontology term.
Muramic acid
Muramic acid is an amino sugar acid. In terms of chemical composition, it is the ether of lactic acid and glucosamine. It occurs naturally as N-acetylmuramic acid in peptidoglycan, whose primary function is a structural component of many typical bacterial cell walls. Muramic acid, also known as muramate or murexide, belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group. Muramic acid is an amino sugar acid. It occurs naturally as N-acetylmuramic acid in peptidoglycan, whose primary function is a structural component of many typical bacterial cell walls. In terms of chemical composition, it is the ether of lactic acid and glucosamine. Muramic acid is a marker of bacterial peptidoglycan, in environmental and clinical specimens. (PMID: 10778926) [HMDB] Muramic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=1114-41-6 (retrieved 2024-07-01) (CAS RN: 1114-41-6). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Glucosamine
Glucosamine (C6H13NO5) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of two polysaccharides, chitosan and chitin. Glucosamine is one of the most abundant monosaccharides. Produced commercially by the hydrolysis of shellfish exoskeletons or, less commonly, by fermentation of a grain such as corn or wheat, glucosamine has many names depending on country. Although a common dietary supplement, there is little evidence that it is effective for relief of arthritis or pain, and is not an approved prescription drug. In the United States, glucosamine is not approved by the Food and Drug Administration for medical use in humans. Since glucosamine is classified as a dietary supplement, evidence of safety and efficacy is not required as long as it is not advertised as a treatment for a medical condition. Nevertheless, glucosamine is a popular alternative medicine used by consumers for the treatment of osteoarthritis. Glucosamine is also extensively used in veterinary medicine as an unregulated but widely accepted supplement. Treatment with oral glucosamine is commonly used for the treatment of osteoarthritis. Since glucosamine is a precursor for glycosaminoglycans, and glycosaminoglycans are a major component of joint cartilage, supplemental glucosamine may help to rebuild cartilage and treat arthritis. However, there is little evidence that any clinical effect of glucosamine works this way. Its use as a therapy for osteoarthritis appears safe but there is conflicting evidence as to its effectiveness. Glucosamine is naturally present in the shells of shellfish, animal bones, bone marrow, and fungi. D-Glucosamine is made naturally in the form of glucosamine-6-phosphate, and is the biochemical precursor of all nitrogen-containing sugars. Specifically in humans, glucosamine-6-phosphate is synthesized from fructose 6-phosphate and glutamine by glutamine—fructose-6-phosphate transaminase as the first step of the hexosamine biosynthesis pathway. The end-product of this pathway is uridine diphosphate N-acetylglucosamine (UDP-GlcNAc), which is then used for making glycosaminoglycans, proteoglycans, and glycolipids. As the formation of glucosamine-6-phosphate is the first step for the synthesis of these products, glucosamine may be important in regulating their production; however, the way that the hexosamine biosynthesis pathway is actually regulated, and whether this could be involved in contributing to human disease remains unclear. Present in mucopolysaccharides and in polysaccharides found in bacteria, fungi, higher plants, invertebrates, vertebrates, antibiotics and UDP complexes. Obt. comly. by hydrol. of seashells [CCD] M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G051 Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1].
Glucosamine 6-phosphate
C6H14NO8P (259.04570140000004)
Glucosamine 6-phosphate (CAS: 3616-42-0) is normally produced in endothelial cells via de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. Glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals.It is a member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus (PMID:11270676, 11842094). Glucosamine 6-phosphate is normally produced in endothelial cells via the de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals. A member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus. (PMID 11270676, 11842094) [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G021; [MS2] KO008968 KEIO_ID G021
N,N'-diacetylchitobiose
C16H28N2O11 (424.16930179999997)
N,N-diacetylchitobiose, also known as (GlcNAc)2, is classified as a member of the Acylaminosugars. Acylaminosugars are organic compounds containing a sugar linked to a chain through N-acyl group. N,N-diacetylchitobiose is considered to be soluble (in water) and acidic. N,N-diacetylchitobiose may be a unique E.coli metabolite N,N'-Diacetylchitobiose is a dimer of β(1,4) linked N-acetyl-D glucosamine. N,N'-Diacetylchitobiose is the hydrolysate of chitin and can be used as alternative carbon source by?E. coli[1].
N-Acetylmuramoyl-Ala
This compound belongs to the family of N-acyl-alpha-hexosamines. These are carbohydrate derivatives containing a hexose moeity in which the oxygen atom is replaced by an n-acyl group.
5-Phosphoribosylamine
C5H12NO7P (229.03513719999998)
5-Phosphoribosylamine is a substrate for Amidophosphoribosyltransferase and Trifunctional purine biosynthetic protein adenosine-3. [HMDB] 5-Phosphoribosylamine is a substrate for Amidophosphoribosyltransferase and Trifunctional purine biosynthetic protein adenosine-3. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Streptozocin
Streptozocin is only found in individuals that have used or taken this drug.It is an antibiotic that is produced by Stretomyces achromogenes. It is used as an antineoplastic agent and to induce diabetes in experimental animals. [PubChem]Although its mechanism of action is not completely clear, streptozocin is known to inhibit DNA synthesis, interfere with biochemical reactions of NAD and NADH, and inhibit some enzymes involved in gluconeogenesis. Its activity appears to occur as a result of formation of methylcarbonium ions, which alkylate or bind with many intracellular molecular structures including nucleic acids. Its cytotoxic action is probably due to cross-linking of strands of DNA, resulting in inhibition of DNA synthesis. L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AD - Nitrosoureas D000970 - Antineoplastic Agents
Streptobiosamine
An amino disaccharide that is a 2-deoxy-2-(methylamino)-alpha-L-glucopyranose ring joined to a L-lyxose with a formyl substituent at position 3.
N-acetylglucosamine/N-acetylgalactosamine
N-Acetylgalactosamine, also known as GalNAc, belongs to the class of organic compounds known as N-acyl-alpha-hexosamines. These are carbohydrate derivatives containing a hexose moiety in which the oxygen atom is replaced by an N-acyl group. N-Acetylgalactosamine is also classified as an amino sugar derivative of galactose. In humans GalNAc functions as the terminal carbohydrate forming the antigen of blood group A. GalNAc is typically the first monosaccharide that connects serine or threonine during protein O-glycosylation and the formation of glycoproteins. This is often referred to as mucin-type O-glycosylation, as the mucins (a class of a family of high molecular weight, heavily glycosylated proteins produced by epithelial tissues in most animals which have an ability to form gels) are heavily O-GalNAc modified. Interestingly, mammals have genes encoding for approximately 20 different polypeptide-N-acetylgalactosaminyltransferases (ppGalNAcTs), all of which transfer GalNAc from UDP-GalNAc to a hydroxyl-containing amino acids such as serine or threonine. N- O-GalNAc-containing glycoproteins appear to play a variety of essential roles. Among these is the ability of the mucins to hydrate and protect tissues by trapping bacteria. These O-glycans can also significantly alter the conformation of the protein and on the heavily modified proteins may protect the polypeptide from proteolytic digestion. O-GalNAc structures also appear to play an essential role in sperm–egg interactions. From a pathophysiological perspective, O-GalNAc modification appears to play a critical role in the immune system, cell–cell interactions, and cancer. N-Acetylgalactosamine is an important constituent of brain heteropolysaccharides (glycoproteins). The concentration of the N-acetylgalactosamine-containing glycoproteins in the 3-year-old cerebral gray matter from human brain is 7-15 times greater than in 8-year old tissue and 15-30 times greater than in 72-year-old tissue. Outside of the human body, N-Acetylgalactosamine has been detected, but not quantified in, several different foods, such as prickly pears, italian sweet red peppers, wheats, silver lindens, and sour cherries. This could make N-acetylgalactosamine a potential biomarker for the consumption of these foods. N-acetylgalactosamine, also known as alpha-galnac or tn, is a member of the class of compounds known as N-acyl-alpha-hexosamines. N-acyl-alpha-hexosamines are carbohydrate derivatives containing a hexose moiety in which the oxygen atom is replaced by an n-acyl group. N-acetylgalactosamine is soluble (in water) and a very weakly acidic compound (based on its pKa). N-acetylgalactosamine can be found in a number of food items such as colorado pinyon, common bean, mulberry, and jostaberry, which makes N-acetylgalactosamine a potential biomarker for the consumption of these food products. N-acetylgalactosamine can be found primarily in feces and saliva, as well as throughout most human tissues. N-Acetylgalactosamine (GalNAc), is an amino sugar derivative of galactose . D-N-Acetylgalactosamine is an endogenous metabolite.
Galactosamine
Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G046
N-Acetylgalactosamine 6-sulfate
C8H15NO9S (301.04675000000003)
KEIO_ID A184
Glucosamine 6-sulfate
Glucosamine 6-sulfate is a naturally occurring compound present in many of the bodys tissues, and belongs to a class of compounds known as glycosaminoglycans (GAGs). Glucosamine 6-sulfate is being used in the treatment of arthritis. Glucosamine for arthritis products is usually formulated as the hydrochloride salt or glucosamine sulfate and often combined with chondroitin sulphate. It is notable that while both the hydrochloride salt and glucosamine sulfate are used in pharmaceutical preparations, glucosamine sulfate is thought to have a higher biological activity due to the presence of the sulfate. It should also be noted that there is a large cost difference between the two salts, with the hydrochloride salt being significantly less expensive. (PMID: 15925239) [HMDB] Glucosamine 6-sulfate is a naturally occurring compound present in many of the bodys tissues, and belongs to a class of compounds known as glycosaminoglycans (GAGs). Glucosamine 6-sulfate is being used in the treatment of arthritis. Glucosamine for arthritis products is usually formulated as the hydrochloride salt or glucosamine sulfate and often combined with chondroitin sulphate. It is notable that while both the hydrochloride salt and glucosamine sulfate are used in pharmaceutical preparations, glucosamine sulfate is thought to have a higher biological activity due to the presence of the sulfate. It should also be noted that there is a large cost difference between the two salts, with the hydrochloride salt being significantly less expensive. (PMID: 15925239).
N-Acetylgalactosamine 6-sulfate
C8H15NO9S (301.04675000000003)
N-Acetylgalactosamine 6-sulfate is found in keratan sulfate and chondroitin 6-sulfate. PMID: 12489154. Morquio syndrome is caused by an abnormal accumulation of mucopolysaccharides - in this case, keratan sulfate - in the body. Keratan sulfate is excreted in urine. The symptoms vary from patient to patient, and may include hearing loss, cataracts, skeletal dysplasia, spinal instability, and minor respiratory issues, among others. Two forms are recognized, type A and type B. Type A is a deficiency of the enzyme N-acetylgalactosamine-6-sulfate sulfatase. (Wikipedia). N-Acetylgalactosamine 6-sulfate is found in keratan sulfate and chondroitin 6-sulfate.
Chitosan
C56H103N9O39 (1525.6352848000001)
Chitosan is a linear polysaccharide composed of randomly distributed beta(1->4)-linked D-glucosamine (deacetylated unit) and N-acetyl-D-glucosamine (acetylated unit). Chitosan has a number of commercial and possible biomedical uses. It can be used in agriculture as a seed treatment and biopesticide, helping plants to fight off fungal infections. In winemaking, it can be used as a fining agent, also helping to prevent spoilage. In industry, it can be used in a self-healing polyurethane paint coating. In medicine, it is useful in bandages to reduce bleeding and as an antibacterial agent; it can also be used to help deliver drugs through the skin. Chitosan is produced commercially by deacetylation of chitin, which is the structural element in the exoskeleton of crustaceans (such as crabs and shrimp) and cell walls of fungi. It is used in hydrogel and to treat wounds. Chitosan can also be used in water processing engineering as a part of a filtration process. Chitosan causes the fine sediment particles to bind together and is subsequently removed with the sediment during sand filtration. Chitosan also removes phosphorous, heavy minerals, and oils from the water. Chitosan is an important additive in the filtration process. Sand filtration apparently can remove up to 50\\% of the turbidity alone while the Chitosan with sand filtration removes up to 99\\% turbidity.
obtained from Chitin
N-Gluconyl ethanolamine phosphate
N-Gluconyl ethanolamine phosphate is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
N-Acetylhexosamine
N-Acetyl-D-Glucosamine (N-Acetyl-2-amino-2-deoxy-D-glucose) is a monosaccharide derivative of glucose.
Glucosamine
Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1].
N-Acetylgalactosamine
D-N-Acetylgalactosamine is an endogenous metabolite.
N-Acetylglucosamine
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS N-Acetyl-D-Glucosamine (N-Acetyl-2-amino-2-deoxy-D-glucose) is a monosaccharide derivative of glucose.
N-Gluconyl ethanolamine phosphate
Glucotropeolin
An aralkylglucosinolic acid that consists of 1-thio-beta-D-glucopyranose attached to a 2-phenyl-N-(sulfooxy)ethanimidoyl group at the anomeric sulfur.
Beta-1,4-mannose-N-acetylglucosamine
C14H25NO11 (383.14275399999997)
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Streptozocin
An N-nitrosourea that is an antibiotic produced by Streptomyces achromogenes. It is used as an antineoplastic agent and to induce diabetes in experimental animals. L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AD - Nitrosoureas D000970 - Antineoplastic Agents
2,4-Diacetamido-2,4,6-trideoxy-alpha-mannose
C10H18N2O5 (246.12156579999998)