(n.) An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus.
Example Sentences:
(1) Radioactive alkylating 5'-[32P]-[4-(N-2-chlorethyl)N-methylaminobenzyl]-5'-phospham ide decadeoxyribothymidilate derivatives containing either free hydroxyl group (reagent I), hydrophobic cholesterol residue (reagent II) or polyaromatic phenazinium residue (reagent III) at 3'-termini were synthesized.
Polymeric
Definition:
(a.) Having the same percentage composition (that is, having the same elements united in the same proportion by weight), but different molecular weights; -- often used with with; thus, cyanic acid (CNOH), fulminic acid (C2N2O2H2), and cyanuric acid (C3N3O3H3), are polymeric with each other.
Example Sentences:
(1) Natural tubulin polymerization leads to the formation of hooks on microtubular structures.
(2) The polymerization of dATP, dCTP, and dGTP onto the defined length initiator, d(pA)10, has been carried out in four buffers.
(3) The results indicated that the higher-M(r) somatostatin-like species isolated from the hypothalamus did not result from hormone polymerization by means of disulfide interchange.
(4) Essential characteristics of the composite bone cement included a homogeneous and uniform fiber distribution, and a minimal increase in apparent viscosity of the polymerizing cement.
(5) On the other hand, ultraviolet (320-nm) light, absorbed by 3-hydroxy-pyridinium cross-links which were rapidly photolyzed, partially dissociated polymeric collagen aggregates from bovine Achilles tendon after subsequent heating.
(6) The reaction was treated with T5 D15 exonuclease to selectively destroy partially polymerized single-stranded phage DNA that may otherwise contribute to an increased background of wild-type transformants.
(7) Since chromatin particles containing DNA the size of 125 kbp can electroelute, we conclude that the polymerizing complex is attached to a nucleoskeleton which is too large to escape.
(8) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
(9) Oligo- or polyribonucleotides are relatively ineffective initiators of polydeoxynucleotide polymerization.
(10) Ultrastructural studies of detergent-insoluble cytoskeletons from infected cells and immunofluorescence microscopy of phalloidin-labeled cells showed alterations in the structure of the cytoskeleton during the internalization process including the accumulation of polymerized actin around entering bacteria.
(11) On day 5, intake of the elemental group exceeded that of the polymeric group (p less than 0.02).
(12) Poly (2'-deoxy-2'-fluoroinosinic acid) [ poly(If)] was synthesized by polymerization of 2'-deoxy-2'-fluoroinosine 5'-diphosphate catalyzed by Escherichia coli polynucleotide phosphorylase.
(13) A cytokine-mediated up-regulation of SC that simultaneously increases the transport capacity for polymeric IgA would constitute an efficient enhancement of secretory immunity in diseased glandular tissue.
(14) This has been demonstrated from agglutination and radioimmunometric assay (RIMA) results, using ten antisera raised in rabbits against purified polymeric flagellins from ten Salmonella serotypes as immunogens.
(15) This reaction gave rise to artifacts in alkaline polyacrylamide gels and isoelectric focusing systems when residual acrylamide monomers were still present in the gel matrix after the polymerization process ceased.
(16) Greater than 99% of the polymerization reaction products were quenched by the addition of 2.0 mM ascorbate.
(17) Thus, patients treated with extracts polymerized with glutaraldehyde had IgG4 levels that were similar to those of the patients subjected to no IT.
(18) Examination of the inhibitory effect of ATP using oligo(dA)12-18 as well as activated DNA as primers revealed that (a) ATP inhibition is not due to its addition onto a 3'-OH primer terminus ad judged by the lack of incorporation of labeled ATP, although under similar conditions incorporation of GTP can be demonstrated, (b) a consistent degree of inhibition was noted independent of primer or enzyme concentration; (c) addition of ATP to an ongoing reaction promptly reduces the rate of polymerization; (d) kinetic studies indicate a competitive (with respect to substrate deoxy triphosphate) pattern of inhibition; (e) addition of excess deoxyribotriphosphate promptly relieves the inhibition.
(19) With different oxidation catalysts most antioxidants and amino acids tested enhanced polymerization.
(20) This implies that degradation of sIgM does not result from the incompetence of 38C cells to polymerize.