() Vegetable coloring matter other than green; chromule.
() Any colored compound, supposed to contain one or more chromophores.
Example Sentences:
(1) It includes preincubation of diluted plasma with ellagic acid and phospholipids and a starting reagent that contains calcium and a chromogenic peptide substrate for thrombin, Tos-Gly-Pro-Arg-pNA.
(2) The commercially available chromogenic p-nitroanilide substrates Pro-Phe-Arg-NH-Np (S2302 or chromozym PK), Glp-Pro-Arg-NH-Np (S2366), Ile-Glu-(piperidyl)-Gly-Arg-NH-Np (S2337), and Ile-Glu-Gly-Arg-NH-Np (S2222) were tested for their suitability as substrates in these assays.
(3) It has now achieved wide applicability to the measurement of cellular biochemical activity by means of stoichiometric chromogenic reactions.
(4) The turnover of fluorogenic substrates is lower for all enzymes than the turnover of chromogenic substrates but due to the more sensitive detection of fluorogenic products the detection limits for all conjugates were lowered too--especially for beta Gal-IgG by a factor of 333 compared to the colorimetric procedure.
(5) Methods based on the application of chromogenic and fluorogenic substrates enable specific and rapid detection of a variety of bacterial enzymatic activities.
(6) Fluorogenic 6-octanoyl- and 6-hexadecanoyl-amino-4-methylumbelliferyl beta-D-glucopyranoside were much less readily hydrolyzed by both human and animal glucocerebrosidase than chromogenic 2-hexadecanoylamino-4-nitrophenyl beta-D-glucopyranoside.
(7) Diethyldithiocarbamate did not influence the effects of NiCl2 on TBA-chromogens in liver homogenates or on serum AST and ALT activities but acted synergistically with NiCl2 to diminish serum alkaline phosphatase activity and to increase serum bilirubin concentration.
(8) The newly developed endotoxin specific chromogenic Limulus assay (endospecy test), which is devoid of factor G, did not react with any rabbit serum.
(9) Substratum-bound enzyme could be solubilized in buffers containing sodium dodecyl sulfate (SDS) or Triton X-100 and demonstrated by zymography following electrophoresis or assayed for amidolytic activity with a chromogenic substrate (Kabi S-2251).
(10) The released glycerol is oxidized with glycerol dehydrogenase from Erwinia aroideae in the presence of NAD+, were the reduction of the enzyme-linked NAD+ is coupled to the reduction of nitro blue tetrazolium as a chromogenic indicator with phenazine methosulfate serving as an intermediate electron carrier of NADH.
(11) The chromogenic substrate, CPRG (chlorophenol red-beta-D-galactopyranoside), was compared with ONPG (o-nitrophenyl-beta-D-galactopyranoside) by kinetic analysis with purified beta-galactosidase.
(12) Using peptide 4-methoxy-2-naphthylamide substrates (Bz-Arg-MNA, Z-Lys-Arg-MNA, Z-Gly-Arg-MNA, Z-Pro-Arg-MNA and Z-Gly-Pro-Arg-MNA) and Fast Garnet GBC as chromogen the red azo dye was found to precipitate in the cytoplasmic granules of the cutaneous mast cells.
(13) The continuous chromogenic tissue factor assay has been compared to one-stage and two-stage coagulation assays, and its sensitivity has been established using purified human placental tissue factor.
(14) Cleavage of chromogenic peptidyl substrate by TFA165A166.VIIa complexes was not diminished, demonstrating that TFA165A166 supported enhancement of catalytic function of the VIIa protease domain.
(15) Factor X-activating activity (FXAA) was determined by a chromogenic assay in normal and malignant breast tissue.
(16) Diaminobenzidine and tetramethylbenzidine were used as chromogens to distinguish ChAT (protein) and VIP (peptide) immunoreactivities.
(17) In an enzyme immunoassay for anti-Salmonella antibodies using glucose oxidase as the indicator enzyme, the molybdate-enhanced polyvinyl alcohol- and starch-glucose-iodide substrate systems were as sensitive as a conventional glucose oxidase assay system employing horseradish peroxidase as a secondary enzyme and a suitable hydrogen-donating chromogen.
(18) strain 3707, a chromogenic rapid grower; C72 to C78 (av.
(19) 4. alpha-D-mannosidase was the most active with both fluorescent and chromogenic substrates.
(20) A sample containing fibrin is incubated with t-PA, plasminogen and a plasmin-sensitive chromogenic substrate.
Chromophore
Definition:
(n.) Any chemical group or residue (as NO2; N2; or O2) which imparts some decided color to the compound of which it is an ingredient.
Example Sentences:
(1) F(420) is photolabile aerobically in neutral and basic solutions, whereas the acid-stable chromophore is not photolabile under these conditions.
(2) Theoretical computations are performed of the intercalative binding of the neocarzinostatin chromophore (NCS) with the double-stranded oligonucleotides d(CGCG)2, d(GCGC)2, d(TATA)2 and d(ATAT)2.
(3) The drug-picrate chromophores maximally absorb within the first minute of reaction (21 s for phenacemide, 45 s for cephalothin), after which the absorbances decrease.
(4) The chromophore of octopus rhodopsin is 11-cis retinal, linked via a protonated Schiff base to the protein backbone.
(5) These results suggest that the chromophore-protein interaction is significantly altered during the phototransformation of phytochrome.
(6) Their absorption spectra are at sufficiently long wavelength to be unobscured by cellular chromophores such as nucleotides and aromatic amin acids.
(7) Synthesis products have been identified, and three chromophores have been displayed by their n----II and II----II dichroic transitions.
(8) These surplus chromophores become esterified and are temporarily taken up by the pigment epithelium to be re-entered into the visual cycle as fast as they can be processed by the regenerative machinery of the rod outer segments.
(9) Utilizing the known atomic coordinates of the chromophores (Schirmer, T., Bode, W. and Huber, R. (1987) J. Mol.
(10) In spite of this relatively high value and unusual stability, a persulfide group, R-S-SH, seems to be the most likely structure for this chromophore.
(11) The chromophore was found in the 105,000xg supernatant and gave a reduced CO-difference spectrum with an absorption maximum of 448 nm.
(12) The only other fluorescent chromophore in that region of the spectrum has excitation and emission peaks at 328 and 460 nm, respectively.
(13) When the monomer was further dissociated into constituent subunits in strong alkali or at high concentrations of SDS, the CD spectrum disappeared almost completely, indicating loss of the asymmetric interactions of the chromophoric heme a with its immediate environments, consisting of the subunit assembly.
(14) Using these techniques we have also determined a conditional reduction potential of -0.156 V for the chromophore producing fatty acyl-CoA substrate beta-2-furylpropionyl-CoA.
(15) This effect is attributed to intercalation of the ellipticine chromophore.
(16) The bathochromic shift may be a consequence of a reduced exposure of the chromophore to the aqueous solvent.
(17) In exogenous photosensitization, the chemical agent (chromophore) is most often identified, reaching the skin either via topical contact or by systemic administration (drugs).
(18) Circular dichroism of these compounds allows us to assign the transition due to the amide chromophore.
(19) Fourier-transform infrared difference spectroscopy has been used to detect the vibrational modes in the chromophore and protein that change in position or intensity between rhodopsin and the photoproducts formed at low temperature (70 K), bathorhodopsin and isorhodopsin.
(20) The second chromophore exhibits spectral properties (lambda max = 360, 255 nm, pH 2) similar to that observed for 7,8-dihydropterin cations.