(n.) A colorless, inflammable, poisonous gas, C2N2, with a peach-blossom odor, so called from its tendency to form blue compounds; obtained by heating ammonium oxalate, mercuric cyanide, etc. It is obtained in combination, forming an alkaline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.
Example Sentences:
(1) Uptake into arterial collagens and release of labeled hydroxyproline were then measured after 2.5 h. The relative amounts of types I and III collagens were assessed from the levels of cyanogen-bromide-derived peptides alpha 1(I)CB8 and alpha 1(III)CB5, respectively, after sodium dodecyl sulfate polyacrylamide gel electrophoresis.
(2) The use of SDS-polyacrylamide gel electrophoresis of the cyanogen bromide derived peptides from fibrous cartilage collagens enabled to calculate type I to type II collagen ratio in this tissue.
(3) The sequence was obtained from analysis of peptides isolated from chymotryptic, cyanogen bromide, and limited acid cleavages of the protein.
(4) Cyanogen bromide cleavage of the 145000 subunit produced a single peptide of Mr 75000.
(5) The amino acid sequence of a brain-specific protein, S-100, has been determined by the analysis of four cyanogen bromide peptides and fourteen tryptic peptides derived from the protein.
(6) The mapping of the MAb epitopes was also facilitated by immunoblotting analysis of HlyA polypeptide fragments derived by cyanogen bromide cleavage.
(7) The heavy chain of a pathological immunoglobulin G (Daw) of type L, subclass gamma(2b) (We) and Gm(a+)(f-), has been cleaved with cyanogen bromide.
(8) Purified boveine growth hormone labeled enzymatically with iodine-125 was covalently coupled to cyanogen bromide activated Sepharose 4B gel and to diazotized zirconia-clad glass beads.
(9) This transformation is consistent with the general pathway for cyanogenic glycoside biosynthesis proposed on the basis of in vivo experiments.
(10) A covalent binding of transketolase to bromo-cyanogen-activated Sepharose 4B at the pH value of the maximum activity and stability of the enzyme equal to 7,6 has been carried out.
(11) By using synthetic peptides corresponding to human and murine protein AA segments and cyanogen bromide fragments of human protein AA, we show evidence that the amyloidogenic part of the molecule is the first 10-15 amino acid long segment.
(12) Dot-blot analysis indicated that antibody 47N3-6 could bind to a fragment, KRKRSQHse, derived from residues 132-137 of rHuIFN gamma-A, but could bind only weakly to the cyanogen bromide fragment corresponding to residues 138-146.
(13) Two primary sets of overlapping fragments were obtained by cleavage of the S-carboxymethylated protein at methionyl and lysyl bonds following treatment with cyanogen bromide and Achromobacter protease I, respectively.
(14) All seven cyanogen bromide peptides were isolated in pure form and were ordered by peptides isolated from tryptic digests.
(15) Competitive enzyme-linked immunosorbent assay experiments using peptide-specific antibodies against cyanogen bromide fragments generated from human dihydrofolate reductase show that the binding of folate, NADPH, and methotrexate, either in binary or in ternary complexes with the wild-type enzyme, causes a striking reduction in the binding of the antibodies.
(16) Cyanogen bromide cleavage peptides showed appropriate collagen formed by unstressed autogenous tendon transplants removed from rabbit knees up to 2 years from transplantation.
(17) Using oligonucleotide probes derived from the protein sequence of a cyanogen bromide fragment, we have cloned the gene for P.69 from B. pertussis CN2992.
(18) Antisera to extracts of a variety of bronchogenic carcinoma were raised in rabbits and extensively absorbed with immunoadsorbents prepared with normal lung extracts cyanogen bromide linked to Sepharose 4B, and glutaraldehyde insolubilized normal lung extracts.
(19) The labeled site not blocked by cAMP is also contained in a Mr = 28,000 cyanogen bromide fragment of the enzyme that does not overlap with the Mr = 36,000 proteolytic fragment.
(20) Verification that the deduced primary structure was that of p190 was demonstrated through microsequence analysis of a cyanogen bromide peptide generated from chick brain p190.
Insecticide
Definition:
(n.) An agent or preparation for destroying insects; an insect powder.
Example Sentences:
(1) Biological magnification of insecticides and PCB's occurred in both lakes.
(2) The use of gaseous insecticides in the chemical control of T. infestans is discussed.
(3) Thus, alkaloid and insecticide modifications share many features but differ in how much the conducting properties of the pore are changed and whether the channel can close reversibly while the toxin remains bound.
(4) It was determined that when using the LV method these insecticides were highly effective.
(5) The main findings of the study in comparison with the control group were: Mean OCC residue levels in blood were slightly higher in group A and markedly so in group B; The variability and the extent of departure from normality of distributions of organochlorine insecticides (OCIs) decreased, whereas those of PCBs increased, in arteriosclerotic patients (more markedly in group B); The degree of correlation between blood serum levels of various OCCs was elevated in group A and low in group B.
(6) Subsequent efforts focused on achieving high levels of insecticidal activity while minimizing costs of synthesis and retaining desirable levels of selective toxicity.
(7) Regardless of age, smoking pack-years, and nasal allergic reactions, the prevalence of asthma was significantly associated with the use of carbamate insecticides (prevalence odds ratio = 1.8, 95% confidence interval: 1.1 to 3.1, p = 0.02).
(8) This loss of neural regulation may result from mechanical damage to the pelvic nerves due to childbirth or pelvic surgery, exposure to environmental toxins (e.g., organochlorine insecticides or heavy metals), or possibly exposure to an infectious agent.
(9) [35S]TBPS binding was also inhibited by relatively high concentrations of some pyrethroid insecticides, such as deltamethrin and cypermethrin (1-2 microM).
(10) Because responses of the five parasitoids to the different insecticides varied considerably, general conclusions about parasitoid susceptibility to active ingredients, insecticide class, or method of application were not possible.
(11) Two control trials were conducted against Ae.samoanus larvae in Pandanus, one using a sand culture of the parasitic nematode Romanomermis culicivorax and the other with temephos, an organophosphate insecticide.
(12) The heat shock-induced synthesis of organophosphorus acid hydrolases in transgenic flies conferred enhanced resistance to toxic paralysis by the organophosphate insecticide paraoxon.
(13) In pest control operations, organophosphorus compounds (OP) have been sprayed as insecticides, blood cholinesterase (ChE) activities and urinary alkylphosphate levels were measured for both OP-sprayers (n = 102) and non-sprayers (n = 35) in pest control companies, and the relationship between the analytical results and spraying conditions was investigated.
(14) The target enzymes, acetylcholinesterase (for phosphamidon and carbaryl) and Mg2+ ATPase (for DDT and fenvalerate) have been assayed during exposure and reclamation of these insecticides in M. monoceros.
(15) Improvement in communications, unchecked urbanization and use of inadequate insecticides have promoted widespreading and proliferation of C.p.
(16) Toxicity of these insecticides are in the order: fenvalerate greater than DDT greater than carbaryl greater than phosphamidon.
(17) Out of 859 consecutive cases treated for exposure to organophosphate (PO) insecticides, 53 were included in the study.
(18) stephensi remained susceptible to this insecticide.
(19) Both insecticides did not show promising larvicidal effects.
(20) Skin tests to seasonal outdoor aeroallergens were negative, as were inhalation challenges with two insecticides used inside the building during the honey pack.