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Vanadates physiology

Vanadate, dioxybis(oxamato)-bond-length ratios, 1,57 Vanadate, heptacyano-potassium salt structure, I, 72 Vanadate, hexafluoro-dipotassium salt history, I, 21 potassium salt history, 1,21 tripotassium salt history, 1,21 Vanadate, pentachloro-stereochemistry, 1,40 Vanadate, pentafluorooxy-stereochemistry, I, 50 Vanadates biochemistry, 3,456 calcium/magnesium ATPase inhibition, 6, 567 competition with phosphates physiology, 6,665 protonation, 3,1026 sodium pump, 6, 557 in uranium purification from ore, 6, 899 Vanadates, hexafluoro-, 3. 482,531 Vanadates, oxoperoxo-, 3,501 Vanadates, pentacarbonyl-, 3, 457 Vanadium biology, 6,665 determination, 1. 548 extraction... [Pg.243]

Insulin binding to the extracellular side of cell membranes initiates the insulin cascade , a series of phosphorylation/dephosphorylation steps. A postulated mechanism for vanadium is substitution of vanadate for phosphate in the transition state structure of protein tyrosine phosphatases (PTP).267,268 In normal physiological conditions, the attainable oxidation states of vanadium are V111, Viv and Vv. Relevant species in solution are vanadate, (a mixture of HV042-/ H2VOO and vanadyl V02+. Vanadyl is not a strong inhibitor of PTPs, suggesting other potential mechanisms for insulin mimesis for this cation. [Pg.833]

Gresser MJ, Tracey AS (1990) Vanadates as Phosphate Analogs in Biochemistry. In Chastcen ND (ed) Vanadium in Biological Systems. Physiology and Biochemistry. Kluwer Academic, Dordrecht, p 63... [Pg.188]

Physiological effects of vanadate(V) — competition with phosphate 665... [Pg.543]

Hamrin K, Henriksson J. Interstitial glucose concentration in insulin-resistant human skeletal muscle influence of one bout of exercise and of local perfusion with insulin or vanadate. European Journal of Applied Physiology 2008, 103, 595-603. [Pg.190]

Macara, I.G., K. Kustin, and L.C. Cantley, Jr. 1980. Glutathione reduces cytoplasmic vanadate. Mechanism and physiological implications. Biochim. Biophys. Acta, 629 95-106. [Pg.166]

In the physiological pH range 6 to 8 when the total vanadium concentration is less than 10 mM, the species present in appreciable amounts are the vanadates(V) H2VO4, HVO2-, HV203, and V309 in which the metal is tetrahedrally coordinated23,24). In the presence... [Pg.109]

Vanadate(V) has been shown to block the activation of a progesterone receptor complex from avian oviduct104. Whether this effect involves phosphate metabolism is not known. A possible link between hormonal effects and the metabolism of vanadium in the reproductive physiology of rats has been investigated165"167. ... [Pg.129]

Vanadate enters cells by an active transport process that depends on the structural and electronic similarity to phosphate ion transport, since the isoelectronic species, HZ04 and H2Z04, are dominant species for Z = P or V at physiological pH. Neutral vanadyl complexes such as... [Pg.5463]

In Section 2.2.1 and Figure 2.15, the binding characteristics of alanylhistidine to vanadate under about physiological conditions were addressed, showing that the tendency of ala-his... [Pg.121]

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See also in sourсe #XX -- [ Pg.665 ]

See also in sourсe #XX -- [ Pg.665 ]

See also in sourсe #XX -- [ Pg.6 , Pg.665 ]



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Vanadates

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