What's the difference between pentane and pentone?
Pentane
Definition:
(n.) Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.
Example Sentences:
(1) Breath was passed through a cooled loop of alumina to adsorb, concentrate, and release, on heating, pentane.
(2) The target concentrations for the butane:pentane mixtures were 4500 and 1000 parts per million (ppm), while 5200 and 1200 ppm were set for the gasoline distillation fraction.
(3) Infants receiving total parenteral nutrition including intravenous lipid emulsion excrete more than 100 pmol of pentane per kilogram body weight per minute.
(4) Extractions by the Twisselmann method give increasing yields in the order n-pentane, hexane, and n-heptane.
(5) The second group of solvents, including toluene and chloroform, showed only a destabilizing effect, while the third group of solvents such as formamide and pentane had no effect over a wide range of concentrations.
(6) The effects of oxygen on production of pentane and compounds absorbing at 234 nm and 285 nm by soybean lipoxygenase isozymes I and II were examined in a model system.
(7) Experiments using purified fatty acids revealed that ethane was preferentially produced from docosahexaenoic and linolenic, and pentane from linoleic and arachidonic acids.
(8) Evidence is produced that destruction of the visual receptor cells by iodoacetate or 1,5-di(p-aminophenoxy) pentane dihydrochloride effectively silences the optic nerve discharge and so achieves this result.2.
(9) Phosphatidylcholine hydroperoxide produced a fluorescent substance (FS-III) through reaction with 1-amino-pentane after preincubation with heme methyl ester as a model system.
(10) The signal is strongly dependent on temperature and can only be well resolved at less than 20 degrees K. It is readily elicited in submitochondrial particles by partial reduction, but has not been observed in submitochondrial particles from which ubiquinone has been removed by pentane extraction.
(11) Pentane extraction of the drug and the internal standard and formation of the N-pentafluorobenzoyl derivatives were followed by GLC.
(12) In oocytes, hybrid-selected human brain mRNA induced acetylcholinesterase activity that was completely inhibited by 1,5-bis[4-allyldimethylammonium)phenyl]pentan-3-one dibromide but not by tetraisopropyl pyrophosphamide, a differential response to these inhibitors characteristic of "true" human brain acetylcholinesterase.
(13) Following hypophysectomy there could be observed a certain decline in the anabolic activity of 1,5-bis(1-carbethoxy-2-oxocyclopentyl-1)pentane.
(14) In order to assess whether multiple sclerosis is associated with lipid peroxidation, we measured pentane and ethane excretion by 16 patients with multiple sclerosis and compared them to healthy control subjects.
(15) The fraction of pentane cyclizations of its hydrocarbon chains increases with the growth temperature of the source organism (39-59 degrees C).
(16) Here, 1-(4-amidino-2-iodophenoxy)-5-(3-amidinophenoxy)pentane (compound 32) was a highly effective inhibitor of bovine thrombin (Ki = 1.1 x 10(-6) M), of human thrombin, and of the overall clotting process of human plasma.
(17) The major hydrocarbon gas products in iron, copper, or hematin catalyzed peroxidation systems were ethane or ethylene from linolenic acid, and pentane from linoleic acid and arachidonic acid.
(18) Lung homogenates from animals treated with alpha-tocopherol had decreased concentrations of TBA reactants and pentane production after incubation with either oxidant stress compared to lung homogenate from animals treated with alpha-tocopheryl acetate or vehicle alone.
(19) We conclude that pentane is a good index of in vitro lipid peroxidation via microsomal NADPH-P-450 enzyme systems.
(20) In schizophrenic patients, the course of lipid peroxidation (LP) was investigated as indicated by pentane contents in the expired air (gas chromatography) during a course of psychotropic drug therapy.
Pentone
Definition:
(n.) Same as Valylene.
Example Sentences:
(1) Recognition with penton base only occurred with trimeric forms of fiber and was apparently not affected by deletion of the first 60 amino acids from the N-terminus.
(2) At low pH the binding was most probably mediated by the penton base and at neutral pH by the fiber protein.
(3) Coelectrophoresis of adenovirus and AAV proteins revealed an overlap only between the adenovirus fiber-penton component and the AAV C polypeptide.
(4) Various forms of Ad2 fiber were expressed in insect cells using recombinant baculoviruses and phenotypically characterized with respect to the following properties: trimerization, binding to penton base, nuclear targeting, and glycosylation.
(5) Synthesis of fiber and penton base are markedly reduced, whereas others, such as the 100K polypeptide, are synthesized efficiently.
(6) The incomplete HA, group-specific CF antigen, and slowly sedimenting HI antibody absorbing components are suggested to represent isolated penton, hexon, and fiber components, respectively.
(7) However, like the whole virus, penton was not able to affect the cytotoxicity of gelonin conjugates.
(8) Latex particles, coated with purified hexon, penton or fibre antigens displayed specific agglutination with 21 rabbit immune sera directed against the different antigens and the complete virus of 10 human and 2 animal adenovirus types.
(9) Preliminary biochemical and immunological characterization of the mutants indicated that: (i) the single mutant in complementation group I did not replicate its deoxyribonucleic acid (DNA) or synthesize late proteins at the nonpermissive temperature but did inhibit host DNA synthesis to 25% of an uninfected control; (ii) the four group II mutants replicated viral DNA, shut off host DNA synthesis, synthesized penton base and fiber, but did not synthesize immunologically detectable hexon; the three mutants in complementation group III synthesized viral DNA, shut off host DNA synthesis, and made immunologically reactive capsid proteins (hexon, penton base, and fiber).
(10) The results demonstrate that neither VP19 nor VP23 could constitute the capsid pentons.
(11) Electrophoresis of adenovirus-infected HeLa cell extracts in adenovirus antibody-containing agarose gel permitted us to assay for hexon, assembled penton, free penton base and free fiber simultaneously in one single experiment.
(12) A majority of the antihexon-neutralized virions was found in intracellular vesicles, as revealed with an electron microscope, but in the case of anti-penton base neutralization, a maximum of 50% of the virions was retained within vesicles, and ca.
(13) The reconstruction provides the first three-dimensional visualization of the vertex proteins, including the penton base and its associated protruding fiber.
(14) The possibility that phosphorylated VPI may form the penton proteins of the virus capsid is discussed.
(15) However, a region near the center of the polypeptide (amino acids 219 to 311) showed a significantly greater level of homology to the HAV-2 penton base (71%).
(16) Elution characteristics of the pentons of various types were studied by anion exchange chromatography and the amino acid composition and isoelectric point of the purified adenovirus type 1 penton were determined.
(17) The sequence of elution of different components of types 9 and 9-15 from an anion exchanger was fibers, fiber-aggregate, pentons, hexons, and dodecons.
(18) The major structural proteins of adenovirus (Ad), which form the external capsid, are hexon, penton base and fiber.
(19) The surface shell of the capsid of herpes simplex virus type 1 (HSV-1) is 15 nm thick and 125 nm in outer diameter and has the form of an icosahedral (T = 16) surface lattice, composed of 150 hexons and 12 pentons.
(20) This study suggests that the low-pH affinity between the penton base and a vesicular membrane is important inside acid vesicles when Ad2 quickly enters the cytoplasm.