Reaction Process: WikiPathways:WP1652
Fructose and mannose metabolism related metabolites
find 5 related metabolites which is associated with chemical reaction(pathway) Fructose and mannose metabolism
Beta-D-fructose-6P ⟶ beta-D-fructose -(1,6)PP
Guanosine diphosphate mannose
C16H25N5O16P2 (605.0771510000001)
Guanosine diphosphate mannose, also known as gdp-D-mannose or guanosine pyrophosphoric acid mannose, is a member of the class of compounds known as purine nucleotide sugars. Purine nucleotide sugars are purine nucleotides bound to a saccharide derivative through the terminal phosphate group. Guanosine diphosphate mannose is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Guanosine diphosphate mannose can be found in a number of food items such as sorrel, common persimmon, citrus, and butternut, which makes guanosine diphosphate mannose a potential biomarker for the consumption of these food products. Guanosine diphosphate mannose exists in all living species, ranging from bacteria to humans. In humans, guanosine diphosphate mannose is involved in a couple of metabolic pathways, which include fructose and mannose degradation and fructose intolerance, hereditary. Guanosine diphosphate mannose is also involved in fructosuria, which is a metabolic disorder. Guanosine diphosphate mannose or GDP-mannose is a nucleotide sugar that is a substrate for glycosyltransferase reactions in metabolism. This compound is a substrate for enzymes called mannosyltransferases . GDP-mannose is a nucleoside diphosphate sugar that is important in the production of fucosylated oligosaccharides. In particular, GDP-mannose is converted to GDP-fucose, which is the fucose donor in the construction of all mammalian fucosylated glycans. GDP-mannose is transformed to GDP-fucose via three enzymatic reactions carried out by two proteins, GDP-mannose 4,6-dehydratase (GMD) and a second enzyme, GDP-keto-6-deoxymannose 3,5-epimerase, 4-reductase. GDP-mannose 4,6-dehydratase (EC 4.2.1.47) catalyzes the chemical reaction: GDP-mannose <--> GDP-4-dehydro-6-deoxy-D-mannose + H2O. The epimerase converts the GDP-4-dehydro-6-deoxy-D-mannose to GDP-fucose (PMID: 12651883). GDP-mannose is also synthesized from mannose 1-phosphate via the enzyme ATP-mannose-1-phosphate-guanyltransferase and GTP. Acquisition and generation of the data is financially supported in part by CREST/JST.
Fructose 1,6-bisphosphate
Fructose 1,6-bisphosphate is fructose sugar or fructosephosphate that has been phosphorylated on carbons 1 and 6. The beta-D-form of this compound is very common in cells. The vast majority of glucose and fructose entering a cell is converted to fructose 1,6-bisphosphate at some point. Fructose 1,6-bisphosphate is a key component in the glycolysis metabolic pathway and is produced by phosphorylation of fructose 6-phosphate The enzyme phosphofructokinase uses ATP to transfer a phosphate group to fructose 6-phosphate to form fructose 1, 6-bisphosphate fructose. The enzyme aldolase splits fructose 1,6-bisphosphate into two sugars that are isomers of each other. These two sugars are dihydroxyacetone phosphate and glyceraldehyde phosphate. Fructose 1,6-bisphosphate is an allosteric activator of pyruvate kinase. The hydrolysis of fructose 1,6-bisphosphate is catalized by Fructose-1,6-bisphosphatase (fru-1,6-P2ase, EC 3.1.3.11) to fructose 6-phosphate and inorganic phosphate and provides a mechanism to permit the reversal of the glycolysis reaction (catalyzed by 6-phosphofructo-1-kinase).(OMIM) [HMDB]. D-Fructose 1,6-bisphosphate is found in many foods, some of which are garden cress, cascade huckleberry, wild celery, and devilfish. D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents C - Cardiovascular system > C01 - Cardiac therapy D007155 - Immunologic Factors D020011 - Protective Agents
Mannose 6-phosphate
Mannose 6-phosphate, also known as alpha-D-mannose-6-p or man-6-p, belongs to the class of organic compounds known as hexose phosphates. These are carbohydrate derivatives containing a hexose substituted by one or more phosphate groups. Mannose 6-phosphate exists in all eukaryotes, ranging from yeast to humans. Within humans, mannose 6-phosphate participates in a number of enzymatic reactions. In particular, mannose 6-phosphate can be converted into fructose 6-phosphate through its interaction with the enzyme mannose-6-phosphate isomerase. In addition, mannose 6-phosphate can be biosynthesized from D-mannose through the action of the enzyme hexokinase-1. Mannose 6-phosphate is a potent competitive inhibitor of pinocytosis of human platelet beta-glucuronidase and it is a necessary component of the recognition marker on the enzyme for pinocytosis by human fibroblasts as well (PMID 908752). In humans, mannose 6-phosphate is involved in fructose intolerance, hereditary. Mannose-6-phosphate is a potent competitive inhibitor of pinocytosis of human platelet beta-glucuronidase and it is a necessary component of the recognition marker on the enzyme for pinocytosis by human fibroblasts as well (PMID 908752). [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID M008
Beta-D-Fructose 6-phosphate
Beta-D-Fructose 6 phosphate (b-F6P) is the beta-anomer of fructose-6-phosphate. There are two anomers of fructose 6 phosphate, the alpha anomer and the beta anomer. Specifically, beta-D-fructose 6-phosphate is fructose sugar phosphorylated on carbon 6. Beta-D-Fructose 6-phosphate is a substrate for Fructose-1,6-bisphosphatase, Pyruvate kinase (isozymes R/L), Hexokinase (type I), Fructose-bisphosphate aldolase A, L-lactate dehydrogenase B chain, Glyceraldehyde-3-phosphate dehydrogenase (liver) and Transaldolase. [HMDB] Beta-D-Fructose 6 phosphate (b-F6P) is the beta-anomer of fructose-6-phosphate. There are two anomers of fructose 6 phosphate, the alpha anomer and the beta anomer. Specifically, beta-D-fructose 6-phosphate is fructose sugar phosphorylated on carbon 6. Beta-D-Fructose 6-phosphate is a substrate for Fructose-1,6-bisphosphatase, Pyruvate kinase (isozymes R/L), Hexokinase (type I), Fructose-bisphosphate aldolase A, L-lactate dehydrogenase B chain, Glyceraldehyde-3-phosphate dehydrogenase (liver) and Transaldolase.
D-Mannose 1-phosphate
D-Mannose 1-phosphate (CAS: 27251-84-9) is a normal metabolite intermediate in fructose and mannose metabolism. It is a substrate of phosphomannomutase 1 (PMM, EC 5.4.2.8), an enzyme necessary for the synthesis of GDP-mannose (a substrate for dolichol-linked oligosaccharide synthesis). PMM converts mannose 6-phosphate into mannose-1-phosphate. A deficiency of phosphomannomutase in carbohydrate-deficient glycoprotein syndrome (CDGS) type I is associated with a decreased synthesis of mannose 1-phosphate. CDGS is a group of autosomal recessively transmitted disorders in which abnormally glycosylated proteins are formed (PMID: 9451026, 8549746, 12729595). α-d-mannose 1-phosphate is a member of the class of compounds known as monosaccharide phosphates. Monosaccharide phosphates are monosaccharides comprising a phosphated group linked to the carbohydrate unit. α-d-mannose 1-phosphate is soluble (in water) and a moderately acidic compound (based on its pKa). α-d-mannose 1-phosphate can be found in a number of food items such as lettuce, beech nut, red beetroot, and japanese pumpkin, which makes α-d-mannose 1-phosphate a potential biomarker for the consumption of these food products. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID M080