What's the difference between pentene and pentone?
Pentene
Definition:
(n.) Same as Amylene.
Example Sentences:
(1) When treated with the carbonyl reagent 2,4-dinitrophenylhydrazine, the reactive fractions yielded derivatives, some of which were identified by mass spectrometry as hydrazones of nonenal, heptenal, pentenal, and crotonaldehyde.
(2) The lipophilic neutral complex [99mTc][TcO(MRP20)] [MRP20 is (N-(2(1H pyrolylmethyl]N'-(4-pentene-3-one-2)ethane-1,2-diamine)] is known to cross the blood-brain barrier in non-primate animals.
(3) The latex of (Euphorbia esula) has been found to contain highly skin irritant and inflammatory ingenol-3delta 2,4,6,8,10 pentene tetradecanoate and another factor, ingenol-3-dodecanoate, which is less irritating but which can be responsible for the cocarcinogenic activity exhibited by the latex preparation in the mice back skin experiment.
(4) However, P-450SG1 showed no lanosterol 14 alpha-demethylase activity and its mode of interaction with diniconazole [(E)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-y1)-1- penten-3- o1], a specific inhibitor of P-450(14DM), was fundamentally different from that of P-450(14DM).
(5) Highly purified exonuclease I isolated from an over-producing stain contains high levels of dRpase activity; it catalyzes the release of deoxyribose-5-phosphate from an AP site incised with endonuclease IV of E. coli and the release of 4-hydroxy-2-pentenal-5-phosphate from an AP site incised by the AP lyase activity of endonuclease III of E. coli.
(6) The volatile fragments of air-aged cholesterol were analysed by means of gas chromatography-mass spectrometry; The following fourteen compounds were identified: ethanol, acetic acid, acetone, 2-methylpropene, 2-methyl-1-propanol, 2-methyl-2-propanol, 2-butanone, 2-methylpropionic acid, 2-methyl-2-butanol, 2-pentanone, 3-methyl-2-butanone, 2-methyl-1-pentene, 2-methyl-2-pentanol, and 2-methyl-4-penten-2-ol.
(7) 1-p-Chlorophenyl-4,4-dimethyl-5-diethylamino-1-penten-3-one hydrobromide (CDDP) has been shown to react selectively with small molecular weight and protein thiols.
(8) Six components, whose concentrations were depressed after adrenalectomy, were identified: 2-heptanone, trans-5-hepten-2-one, trans-4-hepten-2-one, n-pentyl acetate, cis-2-penten-1-yl acetate, and 2,5-dimethylpyrazine.
(9) Long-chain enals are very toxic to TA104, but addition of a reduced glutathione chase following an incubation period decreases this toxicity, thus enabling the detection of 4-hydroxy-pentenal, a homolog of the lipid peroxidation product, 4-hydroxy-nonenal, as a mutagen.
(10) The lactone is preceded in the pathway by 2-amino-2-penten-4-ynoate, a transient electron-rich species which binds tightly to D-amino-acid oxidase and induces a charge-transfer complex with the electron-deficient bound flavin coenzyme.
(11) The major components included acetic and hexanoic acids, trans 3-penten-1-ol, 2-heptanol, 3-methyl-2-buten-1-ol, benzyl alcohol and linalool.
(12) Five cytotoxic Mannich bases (5-dimethylamino-1-substituted phenyl-1-penten-3-ones), three having antineoplastic activity, were evaluated for respiratory-inhibiting properties in rat liver mitochondria in the presence of four substrates: succinate, glutamate, 3-hydroxybutyrate, and palmitylcarnitine.
(13) Malealdehyde (MLA) and 4-hydroxy-2,3-trans-penten-1-al (4-HPE) inhibit rat liver glucose-6-phosphatase activity in vitro.
(14) citral, ethly crotonate, mesityl oxide, acrylic acid) or form very labile adducts (crotonal, pentenal, hexenal, 3-methyl-butenone).
(15) All other compounds tested gave 1 crosslink per plasmid molecule in the mM concentration range as follows: acetaldehyde, 115 mM; propionaldehyde, 295 mM; butyraldehyde, 360 mM; crotonaldehyde, 8.5 mM; trans-2-pentenal, 6.3 mM.
(16) This 7-(2-oxopropyl)-substituted 1,N2-ethenodeoxyguanosine adduct was formed by reaction of 4-oxo-2-pentenal (3-acetylacrolein) with the 1 and N2 positions of deoxyguanosine.
(17) The beta-alkyl substituted acrolein congeners crotonaldehyde, trans-2-pentenal, trans-2-hexenal, 2,4-hexadienal, and trans-2-heptenal were clearly mutagenic in a slightly modified preincubation Ames test with Salmonella typhimurium TA100 with and without S9 mix using a threefold bacterial cell density and a 90-min preincubation time, whereas trans-cis-2,6-nonadienal did not show any mutagenic activity.
(18) Major products formed in incubations of alpha-acetoxyNPIP for 7-24 h in phosphate buffer (pH 7.0) at 37 degrees C included 4-oxo-2-pentenal (11-21% yield), 4-hydroxypentanal (18-22%), and 5-hydroxypentanal (27-29%).
(19) Histrionicotoxin is (2pR, 6S, 7pS, 8aS)-7-(cis-1-buten-3-ynyl)-8-hydroxy-2-(cis-2-penten-4- ynyl)-1-azaspiro[5.5] undecane, while in dihydro-isohistrionicotoxin the acetylenic 2-pentenynyl side chain is replaced by an allenic 2-(3,4 pentadienyl) substituent.
(20) The Km for the removal of trans-4-hydroxy-2-pentenal 5-phosphate is 0.06 microM; the Km for the removal of 2-deoxyribose 5-phosphate is 0.17 microM.
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.