Reaction Process: WikiPathways:WP282

Pentose phosphate pathway related metabolites

find 2 related metabolites which is associated with chemical reaction(pathway) Pentose phosphate pathway

6-Phosphonoglucono-delta-lactone ⟶ 6-Phosphogluconate

6-Phosphogluconic acid

(2R,3S,4R,5R)-2,3,4,5-tetrahydroxy-6-(phosphonooxy)hexanoic acid

C6H13O10P (276.0246)


6-phosphogluconic acid, also known as 6-phospho-D-gluconate or D-gluconic acid 6-(dihydrogen 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. 6-phosphogluconic acid is soluble (in water) and a moderately acidic compound (based on its pKa). 6-phosphogluconic acid can be found in a number of food items such as purple mangosteen, nopal, chicory leaves, and common sage, which makes 6-phosphogluconic acid a potential biomarker for the consumption of these food products. 6-phosphogluconic acid can be found primarily in blood, cellular cytoplasm, and saliva, as well as throughout most human tissues. 6-phosphogluconic acid exists in all living species, ranging from bacteria to humans. In humans, 6-phosphogluconic acid is involved in the pentose phosphate pathway. 6-phosphogluconic acid is also involved in few metabolic disorders, which include glucose-6-phosphate dehydrogenase deficiency, ribose-5-phosphate isomerase deficiency, transaldolase deficiency, and warburg effect. 6-phosphogluconic acid is formed by 6-phosphogluconolactonase, and acted upon by phosphogluconate dehydrogenase to produce ribulose 5-phosphate. It may also be acted upon by 6-phosphogluconate dehydratase to produce 2-keto-3-deoxy-6-phosphogluconate . 6-Phosphogluconic acid, also known as 6-phospho-D-gluconate or gluconic acid-6-phosphate, belongs to the class of organic compounds known as monosaccharide phosphates. These are monosaccharides comprising a phosphated group linked to the carbohydrate unit. 6-Phosphogluconic acid exists in all living species, ranging from bacteria to humans. Within humans, 6-phosphogluconic acid participates in a number of enzymatic reactions. In particular, 6-phosphogluconic acid can be biosynthesized from gluconolactone; which is mediated by the enzyme 6-phosphogluconolactonase. In addition, 6-phosphogluconic acid can be converted into D-ribulose 5-phosphate through the action of the enzyme 6-phosphogluconate dehydrogenase, decarboxylating. In humans, 6-phosphogluconic acid is involved in the metabolic disorder called the transaldolase deficiency pathway. Outside of the human body, 6-Phosphogluconic acid has been detected, but not quantified in several different foods, such as cascade huckleberries, common chokecherries, half-highbush blueberries, american cranberries, and okra. [Spectral] 6-Phospho-D-gluconate (exact mass = 276.02463) and Phosphoenolpyruvate (exact mass = 167.98237) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. KEIO_ID P031

   

6-Phosphonoglucono-D-lactone

[(2R,3S,4S,5R)-3,4,5-Trihydroxy-6-oxotetrahydro-2H-pyran-2-yl]methyl dihydrogen phosphoric acid

C6H11O9P (258.0141)


6-phosphonoglucono-d-lactone, also known as D-glucono-1,5-lactone 6-phosphate or 6-pgdl, is a member of the class of compounds known as hexose phosphates. Hexose phosphates are carbohydrate derivatives containing a hexose substituted by one or more phosphate groups. 6-phosphonoglucono-d-lactone is soluble (in water) and a moderately acidic compound (based on its pKa). 6-phosphonoglucono-d-lactone can be found in a number of food items such as chicory leaves, pepper (c. chinense), opium poppy, and green bell pepper, which makes 6-phosphonoglucono-d-lactone a potential biomarker for the consumption of these food products. 6-phosphonoglucono-d-lactone can be found primarily in cellular cytoplasm. 6-phosphonoglucono-d-lactone exists in all living species, ranging from bacteria to humans. In humans, 6-phosphonoglucono-d-lactone is involved in warburg effect, which is a metabolic disorder. 6-phosphoglucono-delta-lactone (d-6PGL) is the immediate product of the Glucose-6-phosphate dehydrogenase (G-6-PD), the first enzyme of the hexose monophosphate pathway. (PMID 3711719). The pentose-phosphate pathway provides reductive power and nucleotide precursors to the cell through oxidative and nonoxidative branches. 6-Phosphogluconolactonase is the second enzyme of the oxidative branch and catalyzes the hydrolysis of 6-phosphogluconolactones, the products of glucose 6-phosphate oxidation by glucose-6-phosphate dehydrogenase. By efficiently catalyzing the hydrolysis of d-6PGL, 6-phosphogluconolactonase prevents the reaction between d-6PGL and intracellular nucleophiles; such a reaction would interrupt the functioning of the pentose-phosphate pathway. (PMID 11457850).