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Infobox references
Fructose 6-phosphate (sometimes called the Neuberg ester) is a derivative of fructose, which has been phosphorylated at the 6-hydroxy group. It is one of several possible fructosephosphates. The β-D-form of this compound is very common in cells.[1][2] The great majority of glucose and fructose is converted to fructose 6-phosphate upon entering a cell.
Contents
1History
2In glycolysis
3See also
4References
History
The name Neuberg ester comes from the German biochemist Carl Neuberg. In 1918, he found that the compound (later identified as fructose 6-phosphate) was beproduced by mild acid hydrolysis of fructose 2,6-bisphosphate.[3]
In glycolysis
Fructose 6-phosphate lies within the glycolysis metabolic pathway and is produced by isomerisation of glucose 6-phosphate. It is in turn further phosphorylated to fructose-1,6-bisphosphate.
α-D-glucose 6-phosphate
Phosphoglucose isomerase
β-D-fructose 6-phosphate
Phosphofructokinase-1
β-D-fructose 1,6-bisphosphate
ATP
ADP
Pi
H2O
Phosphoglucose isomerase
Fructose bisphosphatase
Compound C00668 at KEGG Pathway Database.Enzyme 5.3.1.9 at KEGG Pathway Database.Compound C05345 at KEGG Pathway Database.Enzyme 2.7.1.11 at KEGG Pathway Database.Enzyme 3.1.3.11 at KEGG Pathway Database.Reaction [1] at KEGG Pathway Database.Compound C05378 at KEGG Pathway Database.
Click on genes, proteins and metabolites below to link to respective articles.[§ 1]
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|{{{bSize}}}px|alt=Glycolysis and Gluconeogenesis edit]]
Glycolysis and Gluconeogenesis edit
^The interactive pathway map can be edited at WikiPathways: "GlycolysisGluconeogenesis_WP534".
See also
Mannose phosphate isomerase
v
t
e
Glycolysis metabolic pathway
Glucose
Hexokinase
ATP
ADP
Glucose 6-phosphate
Glucose-6-phosphate isomerase
Fructose 6-phosphate
phosphofructokinase-1
ATP
ADP
Fructose 1,6-bisphosphate
Fructose-bisphosphate aldolase
Dihydroxyacetone phosphate
+
+
Glyceraldehyde 3-phosphate
Triosephosphate isomerase
2 × Glyceraldehyde 3-phosphate
2 ×
Glyceraldehyde-3-phosphate dehydrogenase
NAD++ Pi
NADH + H+
NAD++ Pi
NADH + H+
2 × 1,3-Bisphosphoglycerate
2 ×
Phosphoglycerate kinase
ADP
ATP
ADP
ATP
2 × 3-Phosphoglycerate
2 ×
Phosphoglycerate mutase
2 × 2-Phosphoglycerate
2 ×
Phosphopyruvate hydratase (Enolase)
H2O
H2O
2 × Phosphoenolpyruvate
2 ×
Pyruvate kinase
ADP
ATP
2 × Pyruvate
2 ×
References
^Berg, Jeremy M.; Tymoczko, Stryer (2002). Biochemistry (5th ed.). New York: W.H. Freeman and Company. ISBN 0-7167-3051-0.
^Nelson, D. L.; Cox, M. M. "Lehninger, Principles of Biochemistry" 3rd Ed. Worth Publishing: New York, 2000. ISBN 1-57259-153-6.
^Fruton, Joseph S. Proteins, Enzymes, Genes: The Interplay of Chemistry and Biology. Yale University Press: New Haven, 1999. p 292
UpToDate Contents
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…phytate may be beneficial. In addition, decreasing the intake of oxalate, animal protein, sucrose, fructose, sodium, supplemental vitamin C, and supplemental calcium (as opposed to dietary calcium) may reduce …
…required. If so, the same approach may be reapplied. Oral phosphate supplements (tablets and powders) contain varying ratios of sodium and potassium phosphate. Serious medication errors have occurred due to confusion …
…following the use of bowel purgatives that contain oral sodium phosphate (OSP) and has been reported following the administration of sodium phosphate-containing enemas . OSP was formerly sold without prescription …
… preparations for flexible sigmoidoscopy include two sodium phosphate enemas or two tap water enemas given at least one hour before the procedure . Sodium phosphate enemas should be avoided in older adults or patients …
… manifestations: Mutations in the sodium-phosphate cotransporter gene SLC34A3 produce striking dysfunction of the type 2c sodium-phosphate cotransporter and lead to hereditary… and hereditary fructose intolerance are the most common causes of this syndrome.…
English Journal
Effects of lead exposure on brain glucose metabolism and insulin signaling pathway in the hippocampus of rats.
Yun S, Wu Y, Niu R, Feng C, Wang J.
Toxicology letters. 2019 Aug;310()23-30.
The aim of this study was to determine whether Pb affects glucose metabolism in the hippocampus of rats. Male Sprague-Dawley rats aged 21 days were orally administered a 0.1%, 0.2%, or 0.3% lead acetate solution in deionized water for 65 days. Then, the weight of the rats; brain Pb content; brain gl
Crystal structure of a xylulose 5-phosphate phosphoketolase. Insights into the substrate specificity for xylulose 5-phosphate.
Scheidig AJ, Horvath D, Szedlacsek SE.
Journal of structural biology. 2019 Jul;207(1)85-102.
Phosphoketolases (PK) are TPP-dependent enzymes which play essential roles in carbohydrate metabolism of numerous bacteria. Depending on the substrate specificity PKs can be subdivided into xylulose 5-phosphate (X5P) specific PKs (XPKs) and PKs which accept both X5P and fructose 6-phosphate (F6P) (X
Genome-wide identification, expression and functional analysis of the phosphofructokinase gene family in Chinese white pear (Pyrus bretschneideri).
Lü H, Li J, Huang Y, Zhang M, Zhang S, Wu J.
Gene. 2019 Jun;702()133-142.
Phosphofructokinase plays an essential role in sugar metabolism in plants. Plants possess two types of phosphofructokinase proteins for phosphorylation of fructose-6-phosphate, the pyrophosphate-dependent fructose-6-phosphate phosphotransferase (PFP), and the ATP-dependent phosphofructokinase (PFK).
Light/dark cycling causes delayed lipid accumulation and increased photoperiod-based biomass yield by altering metabolic flux in oleaginous Chlamydomonas sp.
Kato Yuichi,Fujihara Yusuke,Vavricka Christopher J.,Chang Jo-Shu,Hasunuma Tomohisa,Kondo Akihiko
Biotechnology for Biofuels (12), 39, 2019-02-21
… Metabolomic analysis revealed accumulation of phosphoenolpyruvate and decrease of glycerol 3-phosphate under the LD condition, suggesting that the imbalance of these metabolites is a source of delayed lipid accumulation. …
日本獸醫學雜誌(The Japanese Journal of Veterinary Science)
KANAI Shuichiro,SHIMADA Takuro,NARITA Takanori,OKABAYASHI Ken
The Journal of Veterinary Medical Science, 2019
… <p>Phosphofructokinase-1 (EC:2.7.1.11, PFK-1) catalyzes the phosphorylation of fructose6-phosphate to fructose 1,6-bisphosphate using adenosine triphosphate and is a key regulatory enzyme of glycolysis. …