What's the difference between acceptor and atom?

Acceptor


Definition:

  • (n.) One who accepts
  • (n.) one who accepts an order or a bill of exchange; a drawee after he has accepted.

Example Sentences:

  • (1) The results, together with the known geometry of the enzyme, indicate that active site probes in the dodecamer are widely separated and that energy transfer occurs from a single donor to two or three acceptors on adjacent subunits.
  • (2) Thus acidic amino acids strongly inhibit acceptor activity as do glycine and proline residues as amino-terminal and carboxy-terminal neighbours, respectively.
  • (3) Striking and consistent differences were found in the levels of acceptor activity in different tissues from both groups; these levels corresponded to their sensitivity to tumorigenesis by alkylating agents.
  • (4) Both enzymes showed different acceptor specificities.
  • (5) Protein is a strong competitive acceptor of active products of radiolysis of water and free radicals of DNA.
  • (6) 1017 acceptors of all fertile age groups accumulated 10,576 woman-months of use.
  • (7) The rates of oxidation of various substrates and the acceptor control ratios did not differ appreciably between the two types of mitochondria.
  • (8) In each of the four study sites, focus group discussions or in-depth interviews were held with potential acceptors, current NORPLANT users, discontinuers, husbands of women in these three groups, and service providers.
  • (9) In the presence of alpha-lactalbumin, glucose became a good acceptor for the enzyme and had a Km value of 2.9 mM.
  • (10) Donor and acceptor molecules were wybutine and proflavin, respectively, both located 3' to the anticodon of tRNAPhe.
  • (11) It is suggested that an enzyme-inhibitor complex of an acyl-enzyme type is formed that is slowly hydrolysed, with water as the final acceptor, leaving an intact enzyme and an inactive form of the inhibitor.
  • (12) This paper also examines the effect of pH and ionic strength on the activity and specificity of the enzyme with respect to substrates and natural, as well as artificial, electron acceptors.
  • (13) Interaction between these acceptor sites and crude or partially purified estradiol receptor shows a high association constant (over 10(9) M).
  • (14) The reduction of cytochrome c was found to be sensitive to both anaerobiosis and superoxide dismutase, suggesting the involvement of superoxide anions with this electron acceptor.
  • (15) Additional studies with the monkey liver enzymes revealed that acyl-CoA substrates for one transferase inhibit the other, that the apparent Km value is low (10(-6) to 10(-5) M range) for the preferred acyl-CoA substrate as compared to the amino acid acceptor (greater than 10(-2) M) and that both transferases have a molecular weight of approximately 24,000.
  • (16) The enantiomer of 1-(4-hydroxyphenyl)ethanol produced by 4EPMH was R(+) when horse heart cytochrome c or azurin was used as electron acceptor for the enzyme.
  • (17) C component C3 bound covalently to parasite acceptor molecules via an ester linkage.
  • (18) We have developed a sensitive radiochemical assay of glycine N-acyltransferase activity, using phenylacetyl-CoA as the acyl donor and glycine as the acceptor.
  • (19) This study demonstrates that extracts of 15B cells, in contrast to the parent cell line, do not transfer N-acetylglucosamine residues from UDP-GlcNAc to certain glycopeptide and glycoprotein acceptors containing terminal nonreducing alpha-linked mannose residues.
  • (20) The purified plasma membranes were found to contain galactosyltransferase which transferred galactose from UDP-galactose onto endogenous acceptors.

Atom


Definition:

  • (n.) An ultimate indivisible particle of matter.
  • (n.) An ultimate particle of matter not necessarily indivisible; a molecule.
  • (n.) A constituent particle of matter, or a molecule supposed to be made up of subordinate particles.
  • (n.) The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.
  • (n.) Anything extremely small; a particle; a whit.
  • (v. t.) To reduce to atoms.

Example Sentences:

  • (1) It has been conformed that catalase from bovine liver eliminates only the pro R hydrogen atom from ethanol.
  • (2) The results demonstrated that K2PtCl4 was bound to a greater degree than CDDP in this system with 3-5 and 1-2 platinum atoms respectively, bound per transferrin molecule.
  • (3) Richard Bull Woodbridge, Suffolk • Why does Britain need Chinese money to build a new atomic generator ( Letters , 20 October)?
  • (4) The bond distances of Cu to Cl(1), Cl(2), N(3) and N(3') atoms are 2.299 (1), 2.267 (1), 1.985 (4) and 1.996 (3) A, respectively.
  • (5) The common atoms of the [3Fe-4S] and [4Fe-4S] cores agree within 0.1 A; the three common cysteinyl S gamma ligand atoms agree within 0.25 A.
  • (6) This result was confirmed by atomic absorption spectroscopy, which indicated a stoicheiometry for copper and manganese of approx.
  • (7) The inter-molecular similarity measure used is the number of atoms in the 3-D common substructure (CS) between the two molecules which are being compared.
  • (8) The risks are determined, mainly by expert committees, from the steadily growing information on exposed human populations, especially the survivors of the atomic bombs dropped in Japan in 1945.
  • (9) All N and O atoms except N(3) and O(4') participate in a three-dimensional hydrogen-bonding system.
  • (10) This suggestion is supported by EPR studies, which show that the iron atoms in Fe(III)L-globin are in two low electronic states.
  • (11) The molar refractivity has been shown to be a superior parameter for the description of the activity of sulphonamides than the sum of electronegativities of atoms making up a heterocyclic substituent in the sulphonamide molecule and molecular weight of the substituent.
  • (12) Binding to HSA occurs primarily with the imidazolidine and thiazolidine groups of levamisole as it has been demonstrated by selective changes in the relaxation times and the chemical shifts of the protons attached to the carbon atoms.
  • (13) Each repeat unit contains thirty amino acids and is thought to bind a zinc atom using two cysteines and two histidines as ligands.
  • (14) NADP+ bound at the C8 atom in the adenine moiety proved to be the most efficient ligand whereas that bound at the C3 atom of the ribose moiety was relatively inefficient.
  • (15) This structure is further characterized by approaches of both the carbonyl and the furan O atoms to ring H atoms with separations which are slightly less than the sum of the relevant van der Waals radii.
  • (16) The magnitude of improvement achieved is dependent upon field size, SSD, the atomic number of the foil material, and foil thickness.
  • (17) For the liver enzyme, the logarithm of the inhibition constant was linearly related to the number of carbon atoms in the saturated fatty acids whereas the muscle enzyme, which was generally more strongly inhibited, showed a nonlinear dependence.
  • (18) Results obtained from a such study are here compared with levels obtained from a comparative determination of the metals in the mosses by three other techniques: Differential pulse anodic stripping voltammetry (DPASV), Direct current plasma (atomic emission) spectroscopy (DCPS) and X-ray fluorescence (XRF) spectroscopy.
  • (19) It was hypothesized that the observed activity variation of the paracetamol analogues was based on the relative abilities of these compounds to undergo H atom loss at the phenolic oxygen, and on the relative stabilities of the resulting free-radical species.
  • (20) The resulting family of structures has a mean backbone rmsd of 0.63 A (N, C alpha, C', O atoms), excluding the segments containing residues 45-59 and 84-88.