60802-29-1

Basic information

• Product Name: xylulose-5-phosphate
• Synonyms: (2,3,5-trihydroxy-4-oxopentyl) dihydrogen phosphate;2-Pentulose 5-(dihydrogen phosphate)
• CAS NO: 60802-29-1
• Molecular Formula: C5H11O8P
• Molecular Weight: 230.11
• Mol File: 60802-29-1.mol

Chemical Properties

• Boiling Point: 620.3°C at 760 mmHg
• Flash Point: 329°C
• Appearance: /
• Density: 1.812g/cm³
• Vapor Pressure: 5.5E-18mmHg at 25°C
• Refractive Index: 1.566
• PKA: 1.82±0.10(Predicted)
• CAS DataBase Reference: xylulose-5-phosphate(CAS DataBase Reference)
• NIST Chemistry Reference: xylulose-5-phosphate(60802-29-1)
• EPA Substance Registry System: xylulose-5-phosphate(60802-29-1)

Safety Data

• Hazardous Substances Data: 60802-29-1(Hazardous Substances Data)

Usage

Uses

Used in Biochemical Research:
Xylulose-5-phosphate is utilized as a research tool for studying the pentose phosphate pathway and its role in cellular metabolism. It aids in understanding the mechanisms of NADPH production and the synthesis of essential biomolecules such as nucleotides and coenzymes.
Used in Pharmaceutical Development:
Xylulose-5-phosphate serves as a potential target for the development of drugs that modulate the pentose phosphate pathway. This could have implications for treating diseases associated with metabolic imbalances or deficiencies in NADPH and pentose production.
Used in Metabolic Engineering:
In metabolic engineering, xylulose-5-phosphate is used as a metabolic intermediate to enhance the production of specific compounds or to improve the efficiency of cellular processes. This can be applied in the development of biofuels, biopolymers, or other bioproducts.
Used in Diagnostics:
Xylulose-5-phosphate can be employed in diagnostic assays to assess the functionality of the pentose phosphate pathway in various conditions, potentially serving as a biomarker for metabolic health.
Used in Nutritional Science:
Understanding the role of xylulose-5-phosphate in cellular metabolism can inform nutritional science, potentially leading to the development of dietary interventions or supplements that support metabolic health and energy production.

InChI:InChI=1/C5H11O8P/c6-1-3(7)5(9)4(8)2-13-14(10,11)12/h4-6,8-9H,1-2H2,(H2,10,11,12)/t4-,5-/m1/s1

Upstream product

• 1113-60-6 3-hydroxy-2-oxopropionic acid 
• 591-57-1 D-glyceraldehyde-3-phosphate 
• 532-20-7 D-Ribose 
• 3615-55-2 D-ribose 5-phosphate 
• 921-62-0 6-phosphogluconic acid 
• 93-87-8 D-ribose 5-phosphate 
• 526-95-4 gluconic acid 
• 142-10-9 DL-glyceraldehyde 3-phosphate 
• 3369-79-7 Lithium hydroxypyruvate 
• 5328-37-0 L-arabinose 
• 58-86-6 D-xylose 
• 551-85-9 Ribulose-5-phosphate 

Relevant articles and documents

Stages of the formation of nonequivalence of active centers of transketolase from baker's yeast

For baker's yeast transketolase (TK), cooperative binding of thiamine diphosphate (ThDP) and substrates in the transferase reaction is known. We show here that the differences in the properties of the active centers of TK are formed already upon the binding of Ca2+ in one of two initially identical subunits. When Ca2+ is bound in only one of the two active centers its affinity for the second decreases. The absence of a cation in the second active center decreases the affinity of ThDP to the first active center. Ca2+ binding increases the thermal stability of apo- and holoTK, i.e. changes the whole structure of the enzyme. Only in the presence of Ca2+, but not Mg2+, does the thermal stability of holoTK increase. In the one-substrate reaction in the presence of Ca2+, two Km are measured for the binding of xylulose-5-phosphate and hydroxypyruvate. For both substrates, Vmax of the first active center of holoTK, when it binds the substrate alone, is higher than of semiholoTK. When the substrate begins to bind also in the second active center, Vmax of both active centers decreases, which is explained by the previously shown flip-flop mechanism.

Chemical Synthesis of Ketopentose-5-phosphates

A chemical synthesis of ketopentose-5-phosphates that are involved in the pentose phosphate pathway has been developed. The ketopentose phosphates, d-ribulose-5-phosphate and d-xylulose-5-phosphate, were prepared in five steps starting from known intermed

Facile Enzymatic Synthesis of Phosphorylated Ketopentoses

An efficient and convenient platform for the facile synthesis of phosphorylated ketoses is described. All eight phosphorylated ketopentoses were produced using this platform starting from two common and inexpensive aldoses (d-xylose and l-arabinose) in more than 84% isolated yield (gram scale). In this method, reversible conversions (isomerization or epimerization) were accurately controlled toward the formation of desired ketose phosphates by targeted phosphorylation reactions catalyzed by substrate-specific kinases. The byproducts were selectively removed by silver nitrate precipitation avoiding the tedious and time-consuming separation of sugar phosphate from adenosine phosphates (ATP and ADP). Moreover, the described strategy can be expanded for the synthesis of other sugar phosphates.

Complete Oxidation of Sugars to Electricity by Using Cell-Free Synthetic Enzymatic Pathways

The present invention is in the field of bioelectricity. The present invention provides energy generating systems, methods, and devices that are capable of converting chemical energy stored in sugars into useful electricity.

Electrochemical oxidation of sugars at moderate potentials catalyzed by Rh porphyrins

In this communication, we demonstrate that certain kinds of Rh porphyrins on carbon black can electrochemically oxidize aldose at low potentials. The onset potential was much lower than those with the other complex-based catalysts. A product analysis suggested that this reaction involves 2-electron oxidation of the aldehyde group.

Reconstitution and biochemical characterization of a new pyridoxal-5′-phosphate biosynthetic pathway

The substrates for Bacillus subtilis PLP synthase (YaaD and YaaE) are identified, and the first reconstitution of PLP biosynthesis using this pathway is described. Three partial reactions catalyzed by YaaD are also identified. Copyright

Synthesis of arabinitol 1-phosphate and its use for characterization of arabinitol-phosphate dehydrogenase

D-Arabinitol 1-phosphate (Ara-ol1-P), a substrate for d-arabinitol- phosphate dehydrogenase (APDH), was chemically synthesized from d-arabinonic acid in five steps (O-acetylation, chlorination, reduction, phosphorylation, and de-O-acetylation). Ara-ol1-P was used as a substrate for the characterization of APDH from Bacillus halodurans. APDH converts Ara-ol1-P to xylulose 5-phosphate in the oxidative reaction; both NAD+ and NADP+ were accepted as co-factors. Kinetic parameters for the oxidative and reductive reactions are consistent with a ternary complex mechanism.

Preparation of D-Glucose 6-Phosphate from Methanol and D-Ribose 5-Phosphate with Methylotrophic Enzymes

Formaldehyde was selectively incorporated into the C-1 position of D-fructose 6-phosphate by condensation with D-ribulose 5-phosphate catalyzed by a partially purified enzyme system for formaldehyde fixation in Methylomonas aminofaciens 77a.Much of the D-fructose 6-phosphate produced in this reaction was converted to D-glucose 6-phosphate by the addition of glucose-6-phosphate isomerase.A fed-batch reaction with periodic additions of the substrates afforded 56.2 g/liter D-glucose 6-phosphate and 26.8 g/liter D-fructose 6-phosphate.When methanol was used as the C1-donor, the yield of D-glucose 6-phosphate was high when alcohol oxidase was added.The optimum conditions for sugar phosphate production in the fed-batch reaction gave 45.6 g/liter D-glucose 6-phosphate and 16.4 g/liter D-fructose 6-phosphate in 165 min.The molar yield of the total sugar phosphates to methanol added was 95percent.The addition of H2O2 and catalase to the reaction system supplied molecular oxygen for methanol oxidation to formaldehyde by alcohol oxidase.

Vanadate tetramer as the inhibiting species in enzyme reactions in vitro and in vivo

Tetrameric vanadate polyanion inhibits 6-phosphogluconate dehydrogenases from human, mammalian, yeast, and bacterial sources. The inhibition by a vanadate mixture containing monomer, dimer, and tetramer was determined by measuring the rates of 6-phosphogluconate oxidation and NADP (or NAD) reduction catalyzed by 6-phosphogluconate dehydrogenase. The inhibition by vanadate is competitive with respect to 6-phosphogluconate and mixed or noncompetitive with respect to NADP or NAD. 51V NMR spectroscopy was used to direcly correlate the inhibition of vanadate solutions to the vanadate tetramer. The measured inhibition constants with respect to 6-phosphogluconate for the tetramer are 0.078 mM for the human erythrocyte enzyme, 0.063 mM for the sheep liver enzyme, 0.013 mM for the yeast enzyme, and 0.24 mM for the Leuconostoc mesenteroides. The observed inhibition of 6-phosphogluconate dehydrogenase by vanadate tetramer is the first enzymatic activity observed of this polyanion. Our observations suggest the vanadate tetramer will be a potent inhibitor to other organic phosphate converting enzymes and preliminary results confirm this expectation. The vanadate tetramer may be an important species when considering the mechanism by which vanadium acts in biological systems in vitro and in vivo.

Reversible and in Situ Formation of Organic Arsenates and Vanadates as Organic Phosphate Mimics in Enzymatic Reactions: Mechanistic Investigation of Aldol Reactions and Synthetic Applications

A synthetic strategy is developed that uses organic phosphate utilizing enzymes as catalysts and a mixture of an organic alcohol and inorganic arsenate or vanadate to replace the organic phosphate substrate.In this process, inorganic arsenate or vanadate reacts with the alcohol reversibly in situ to form a mixture of esters, one of which is accepted by the enzyme as a substrate.Examples of the utility of this approach are demonstrated in enzymatic aldol condensations catalyzed by fructose-1,6-diphosphate aldolase, fuculose-1-phosphate aldolase, and rhamnulose-1-phosphate aldolase with a mixture of dihydroxyacetone and inorganic arsenate as substrate.Several uncommon sugars and deoxy sugars are prepared on 5-17-mmol scales.Mechanistic studies on an aldol reaction indicate that the redox reaction between dihydroxyacetone and inorganic vanadate prohibits the use of such a mixture to replace dihydroxyacetone phosphate in enzymatic aldol condensations.