(n.) A compound of antimonious acid and a base or basic radical.
(n.) Stibnite.
Example Sentences:
(1) Extrapolation of the amount of FSBA required to inactivate the protein indicated that 1 mol of FSBA was sufficient to inhibit the activity of 1 mol of ArsA protein in the absence of substrates, while only 0.5 mol was required in the presence of the anionic substrate antimonite.
(2) The estimated Ki values for FSBA were 0.4 mM in the absence of antimonite and 0.1 mM in the presence of antimonite, suggesting that the binding of antimonite increased the affinity of ArsA protein for FSBA.
(3) ATP was partially protected from trypsin digestion, while the anionic substrate antimonite alone had no effect on proteolysis.
(4) Partial deletion of 56 bp from the 3' end of the arsC gene resulted in loss of resistance to arsenate; the determinant retained arsenite and antimonite resistances.
(5) The plasmid-borne arsenical resistance operon encodes an ATP-driven oxyanion pump for the extrusion of the oxyanions arsenite, antimonite and arsenate from bacterial cells.
(6) In the presence of antimonite the weight average molecular mass increased to a mass in excess of 100 kDa.
(7) The ars operon was induced by arsenate [As(V)], arsenite [As(III)], and antimonite [Sb(III)], to which the strains were resistant, plus Bi(III) in S. aureus.
(8) The arsenate, arsenite, and antimonite resistance was shown to be inducible by all three heavy metal ions.
(9) These results demonstrate that ATP and antimonite together produce a conformational change which is different from that of the ArsA protein in the presence of either substrate alone and suggest interaction between the oxyanion and ATP binding sites.
(10) When expressed in Escherichia coli this ATP-driven oxyanion pump catalyzes extrusion of the oxyanions arsenite, antimonite and arsenate.
(11) The arsenate, arsenite, and antimonite resistance region of the Staphylococcus xylosus plasmid pSX267 was subcloned in Staphylococcus carnosus.
(12) Membranes of uncA mutants containing both the ArsA and ArsB proteins exhibit arsenite(antimonite)-stimulated ATPase activity.
(13) The catalytic component of the pump, the 63 kDa ArsA protein, hydrolyses ATP in the presence of its anionic substrate antimonite (SbO2-).
(14) The cloned staphylococcal ars operon confers resistances to arsenate, arsenite, and antimonite in S. aureus and Bacillus subtilis.
(15) The inactivation of arsR also resulted in reduction of resistance to arsenite and antimonite, while arsenate resistance was unaffected.
(16) Purified ArsA protein is an arsenite(antimonite)-stimulated ATPase.
(17) ATP and antimonite together provided complete protection, indicating interaction of the anion- and nucleotide-binding sites.
(18) The same operon was also expressed in E. coli and conferred resistance to arsenite but less resistance to arsenate and antimonite.
(19) In most cases these provide resistance to both the oxyanions of +III oxidation state, antimonite and arsenite, and the +V oxidation state, arsenate.
(20) The ArsA protein, the catalytic component of the plasmid-encoded resistance system for removal of the toxic oxyanions arsenite, antimonite, and arsenate from bacterial cells, catalyzes oxyanion-stimulated ATP hydrolysis.
Mineral
Definition:
(v. i.) An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals.
(v. i.) A mine.
(v. i.) Anything which is neither animal nor vegetable, as in the most general classification of things into three kingdoms (animal, vegetable, and mineral).
(a.) Of or pertaining to minerals; consisting of a mineral or of minerals; as, a mineral substance.
(a.) Impregnated with minerals; as, mineral waters.
Example Sentences:
(1) It is suggested that the Japanese may have lower trabecular bone mineral density than Caucasians but may also have a lower threshold for fracture of the vertebrae.
(2) The absorption of ingested Pb is modified by its chemical and physical form, by interaction with dietary minerals and lipids and by the nutritional status of the individual.
(3) There will be no statutory inquiry or independent review into the notorious clash between police and miners at Orgreave on 18 June 1984 , the home secretary, Amber Rudd, has announced.
(4) There was however no difference in the cross-sectional studies and no significant deleterious effect detected of tobacco use on forearm bone mineral content.
(5) From these results, it was suggested that the inhibitory effect of Cd on in vitro calcification of MC3T3-E1 cells may be due to both a depression of cell-mediated calcification and a decrease in physiochemical mineral deposition.
(6) The effect of dietary fibre digestion in the human gut on its ability to alter bowel habit and impair mineral absorption has been investigated using the technique of metablic balance.
(7) The greatest advantages of spinal QCT for noninvasive bone mineral measurement lie in the high precision of the technique, the high sensitivity of the vertebral trabecular measurement site, and the potential for widespread application.
(8) The model has been used to evaluate mineral changes from the use of fluoride dentifrices and rinses, chewing gum, and food sequencing.
(9) These data indicate improved bone mineralization as compared with previously reported data from very-low-birth-weight neonates.
(10) Gladstone's speech was not made in Parliament, but to a crowd of landless agricultural workers and miners in Scotland's central belt, Gove pointed out.
(11) Artificially produced mineral waters which are identical to natural ones are also applied.
(12) The method of mineral estimation using phalanges is described and its reproducibility was tested on 17 parameters.
(13) Secondary structural features of bovine amelogenin, a hydrophobic protein of developing enamel implicated in ename mineralization, are derived using 2D NMR spectroscopy in solution and molecular mechanics-dynamics studies.
(14) Reduced mineral absorption is fairly well documented and has sound theoretical support from basic chemistry.
(15) Microbiological analyses of sediments located near a point source for petrogenic chemicals resulted in the isolation of a pyrene-mineralizing bacterium.
(16) Years of education completed and poverty status did not significantly affect folate concentrations; however, the prevalence of low folate concentrations among users of vitamin or mineral supplements was significantly lower than it was among nonusers in selected subgroups.
(17) Unsupplemented human breast milk may not provide sufficient calcium and phosphorus for the rapidly growing preterm infant to match the accumulation that should have taken place in utero and to permit normal bone mineralization.
(18) In some areas of the ligament, extracellular plasma membrane-invested matrix vesicles and thick wall-bound matrix giant bodies with or without mineralized deposits were present.
(19) My grandfather was a coal miner and Nana was rather plump and bossy.
(20) These diets were: diet C consisting of commercial Rat Chow: diet CG, the same diet diluted with 70% glucose calories, diet A, a simulated "American" diet made up of 25 widely used foods, diet AS, the same diet supplemented with small amounts of 25 vitamins and minerals.