What's the difference between pentone and peptone?
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.
Peptone
Definition:
(n.) The soluble and diffusible substance or substances into which albuminous portions of the food are transformed by the action of the gastric and pancreatic juices. Peptones are also formed from albuminous matter by the action of boiling water and boiling dilute acids.
(n.) Collectively, in a broader sense, all the products resulting from the solution of albuminous matter in either gastric or pancreatic juice. In this case, however, intermediate products (albumose bodies), such as antialbumose, hemialbumose, etc., are mixed with the true peptones. Also termed albuminose.
Example Sentences:
(1) Microbiological investigations made by membrane filtration method on antiseptics and disinfectants demonstrated that the filtering membranes present very frequently a remarkable antimicrobial activity, even after washing with 300 ml of peptone water according to the guidelines of the Pharmacopoeia.
(2) Neither NaCl nor peptone influenced VIP levels in peripheral blood.
(3) In the absence of yeast extract or peptone, growth from low-level inocula was not observed when n-hexadecane or two oxidation products, 2-hexadecanol and 3-hexadecanone, were used as substrates.
(4) The highest enzyme activity was found in rapidly growing mycelia (glucose-NH4+ or glucose-peptone medium).
(5) The plating medium consisted of 2.0% peptone, 0.2% yeast extract, 1.0% corn starch, 7% NaCl, and 1.5% agar, with the pH adjusted to 8.0.
(6) Seventy-four of 110 strains of Pseudomonas aeruginosa tested produced detectable amounts of HCN from growth in 2% peptone or nutrient agar.
(7) Hemolytic staphylococcus was incubated at 37 degrees C in a Petri dish, on meat-peptone agar with a layer of erythrocytes on its surface.
(8) The antigenic relationship between the milk fat globule membrane (MFGM) and the hydrophobic fraction of proteose-peptone (HFPP) was demonstrated, using a mono-specific anti-HFPP antibody.
(9) In SDS-PAGE, the bands of spirosome protein derived from anaerobic cultures were more intense than those derived from aerobic cultures, either in peptone water or in Davis-Mingioli's minimal medium.
(10) The new medium, designated R2A, contains 0.5 g of yeast extract, 0.5 g of Difco Proteose Peptone no.
(11) Of the 174 samples initially positive for Salmonella, 131 (75.3%) were positive on re-examination using pre-enrichment in buffered peptone water (BPW) and selective enrichment in Rappaport-Vassiliadis medium (RV) and in tetrathionate medium according to Muller-Kauffmann (MK).
(12) Examination of fractional composition of peptone by gel-filtration and fractionation with various precipitants is recommended for rational working out of nutrient media for cultivation of cholera vibrio.
(13) Environemntal conditions which might be present in the human intestinal lumen, such as anaerobiosis, a temperature of 37 degrees C and the presence of bile salts, were examined for their effects on the growth and toxin production by Vibrio cholerae strains 569B and B1307 in Syncase and in peptone water media.
(14) However, the latter group grew in peptone-yeast extract-glucose broth, whereas the H. vaginalis strains did not grow without the addition of starch to peptone-yeast extract-glucose.
(15) Gonococci suspended in 1% proteose peptone containing 8% glycerol can be snap frozen in liquid nitrogen without detectable loss on thawing.
(16) Among the standard laboratory media used trypticase soy broth (TSB) showed the maximum production and poor yields resulted from growth in peptone water and nutrient broth.
(17) In peptone without osmotic support the cells showed a distortion of the normal membrane-wall relationship by 20 minutes.
(18) The same nutrients that increased gastrin mRNA levels caused decreased 2-hour integrated somatostatin mRNA levels; peptone (-30%), phenylalanine (-28%), and olive oil (-21%), but neither glucose nor saline, altered somatostatin mRNA levels.
(19) This, plus the fact that a chemotactic galactose mutant penetrated cores saturated with peptone medium at the same rate with or without a galactose gradient, indicates that chemotaxis may not be required for bacterial penetration through unconsolidated porous media.
(20) The specie Penicillium verrucosum var cyclopium (Westling) has showed that Media containing peptones, especially, trypticase, as a source of nitrogen and maltose or glucose as a source of carbon are most efficient for a good stimulation of the lipolytic activity.