(n.) A gaseous hydrocarbon, C3H4, homologous with acetylene; propine.
Example Sentences:
Propyne
Definition:
Example Sentences:
(1) The role of alkene monooxygenase in catalyzing chlorinated alkene degradations was established by demonstrating that glucose-grown cells which lack alkene monooxygenase and propylene-grown cells in which alkene monooxygenase was selectively inactivated by propyne were unable to degrade the compounds.
(2) 3-Dimethylamino-1-propyne irreversibly inactivates mitochondrial monoamine oxidase from bovine liver.
(3) 1-Aminobenzotriazole, 3-phenoxy-1-propyne, and 3-(2,4-dichlorophenoxy)-1-propyne, mechanism-based inactivators of cinnamic acid 4-hydroxylase, and 9-decenoic acid, a mechanism-based inactivator of the lauric acid in-chain hydroxylase, are at best poor inactivators of the omega-hydroxylase.
(4) With the film technique the different peptides were sequenced with hydrophilic phenylisothiocyanates I and IV or by the propyne programme.
(5) One analogue, 3-(2-oxo-1-pyrrolidinyl)-1-[2(R)-pyrrolidinyl]-1-propyne hydrogen oxalate (6a), was found to be a partial agonist producing a PI hydrolysis response at cortical M1 receptors approximately 3-fold larger than that produced by 1.
(6) The sequence is obtained automatically by the sequenator using the quadrol and the propyne programme.
(7) When the experiments were performed using an air-tissue interface, the dominant photoproducts identified in order of elution from the gas chromatographic column were methane, acetylene, ethylene, ethane, propyne, allene, propylene, propane, and butene.
(8) Acetic acid and methanol cleaved the tetrahydropyranyl ether group, and hydroxylamine and sodium bicarbonate cleaved the pyrrole ring to give 17 alpha-(3'-amino-1'-propyn-1'-yl)-1,3,5(10)-estratriene-3,17 beta-diol (1), estrynamine.
(9) We used mainly N,N-dimethylallylamine and 3-(dimethylamino)propyne, both as aqueous solutions at constant temperature (40 degrees C).
(10) The cleavage products were isolated and sequenced in the sequenator using a Quadrol and propyne program.
(11) indicates that the Michael acceptors 1-(4'-nitrophenyl)-2-propen-1-one (III) and 1-(4'-nitrophenyl-2-propyn-1-one (IV) are the products of the enzymic oxidation of the corresponding alcohols.
(12) Propyne (CH3C identical to CH) is not reduced by the V-nitrogenase.
(13) The latter was converted to the corresponding Grignard reagent with ethylmagnesium bromide, and then condensed with estrone tetrahydropyranyl ether to give 17 alpha-[3'-(2'',5''-dimethyl-1''-pyrryl)-1'-propyn-1'-yl)-1,3 ,5( 10)- estratriene-3,17 beta-diol 3-tetrahydropyranyl ether (3), in 85% yield.
(14) The inhibition is remarkably specific for C2H2: propyne, butyne, and ethylene are not inhibitors.
(15) We have produced a compact, lightweight oxygen concentrator, using a newly-developed polymer of poly [1-(trimethylsilyl)-1-propyne] with a performance, i.e.
(16) Two non-steroidal mechanism-based inactivators for 3 alpha-hydroxysteroid dehydrogenase (3 alpha-HSD) of rat liver have been synthesized: 1-(4'-nitrophenyl)-2-propen-1-ol (I), and 1-(4'-nitrophenyl)-2-propyn-1-ol (II).
(17) The spectral properties of the adduct of the liver enzyme with 3-dimethylamino-1-propyne are similar to those observed when the pig kidney enzyme is inactivated with pargyline (Chuang et al.
(18) 7-O-Propyn-1-yl daunomycinone was not transformed by any of the strains used under the conditions.
(19) In further experiments, designed to examine the range of the dietary effect on chemical carcinogenesis, rats were fed either the marginally lipotrope-deficient, high-fat diet or an adequate control diet, and treated wit- N-2-fluorenylacet-amide, 3,3 diphenyl-3-diemthylcarbamoyl-1-propyne, N-methyl-N-nitroso-N'-nitroguanidine, N-[4-(5-nitro-2-furyl)-2-thiazolyl]formamide, aflatoxin G1, or ethionine.
(20) The substrates used were acetol, dihydroxyacetone, glycerin, 2-propyn-1-ol, allyl alcohol, 2-butyne-1,4-diol, furfuryl alcohol, benzyl alcohol, 4-pyridylcarbinol, galactose, and stachyose.