What's the difference between vanadate and vanadite?

Vanadate


Definition:

  • (n.) A salt of vanadic acid.

Example Sentences:

  • (1) However, within 5 min potassium overcame the vanadate potentiation of ouabain binding regardless of the order in which it was added to the reaction mixture.
  • (2) Vanadate-dependent oxidation of either pyridine nucleotide was inhibited by the addition of either superoxide dismutase or catalase, indicating that both superoxide and hydrogen peroxide may be intermediates in the process.
  • (3) Vanadate(V) required the presence of reduced nicotinamide adenine dinucleotide phosphate to trigger co-oxygenation of benzo(a)pyrene-7,8-dihydrodiol.
  • (4) Sodium vanadate-dependent oxidation of NADH was inhibited by rotenone, antimycin A, NaN3, and NaCN.
  • (5) Forskolin as well as agents that activate G protein such as cholera toxin, AlF4-, and vanadate ions also increase the rate of secretion.
  • (6) Vanadate induces phosphotyrosine accumulation and activates O2 consumption in permeabilized differentiated HL60 cells.
  • (7) The peptide also inhibited stimulation by vanadate of tyrosine autophosphorylation of the beta subunit of the receptor, though it enhanced vanadate-stimulated glucose oxidation.
  • (8) A similar synergism occurred between vanadate and IGF-II.
  • (9) H2O2 and vanadate are known insulinomimetic agents.
  • (10) In studies examining the relationship between protein synthesis and vanadate-induced down-regulation, we found that vanadate markedly stimulated the overall rate of protein synthesis in 24-h treated adipocytes (a 42% increase; ED50, 3 microM), and that cycloheximide treatment markedly blunted vanadate-induced loss of cell surface receptors.
  • (11) An assay for quantifying the extent of formation of the vanadate-based transition-state analogue complexes in crystals of phosphoglucomutase is described.
  • (12) Such oxidation of NAD(P)H may account for several of the biological effects of vanadate.
  • (13) Actin assembly, studied using 7-nitrobenz-2-oxa-1,3-diazole (NBD)-phallacidin, was similarly stimulated by vanadate, though considerably higher concentrations were required to observe this effect.
  • (14) To further characterize the role of superoxide anion-radical in the vanadium redox cycling, the increase of optical density of vanadate(V) dissolved in Tris buffer was measured at 328 nm during the addition of KO2.
  • (15) For these experiments a substantial inhibition of the Ca2+ buffer capacity of the axoplasm was achieved by the use of Ruthenium red (10-20 microM), cyanide (1 mM) and vanadate (1 mM) in the dialysis solution.
  • (16) Vanadate increased, mainly in vascular myocells, both receptor-operated Ca2+ channel- and cyclic-AMP-dependent availability of Ca2+ for contractile processes.
  • (17) The intracellular Na content was increased slightly by vanadate.
  • (18) The capacity of tolbutamide and glibenclamide to relax vanadate-induced contraction of rat uterus in Ca-free medium suggests that sulphonylureas may have an intracellular site of action related to cytosolic free Ca levels, or effect a reduction in Ca action.
  • (19) Oxidation of NADH has been observed in an in vitro system requiring NADH, vanadate, ascorbate, and phosphate.
  • (20) The work described in this paper suggests vanadate will not necessarily undergo redox chemistry with enzymes containing thiol groups exposed on the surface of the protein.

Vanadite


Definition:

  • (n.) A salt of vanadious acid, analogous to a nitrite or a phosphite.

Example Sentences:

  • (1) Vanadite and ferrocyanide in high concentrations (0.32 M) donate electrons to Photosystem I.
  • (2) On the basis of chelator inhibition and polyoxyethylene sorbitan monolaureate treatment, the vanadite oxidation site is located near plastocyanin while the ferrocyanide site is between plastocyanin and P-700.

Words possibly related to "vanadate"

Words possibly related to "vanadite"