ライフサイエンスコーパス: deuteron

1 uclear quadrupole interactions from a single deuteron.

2 r hydroxylation at a carbon atom bearing the deuteron.

3 lowed by replacing exchangeable protons with deuterons.

4 ster is accessible for exchange with solvent deuterons.

5 deuterium mud is the exotic atom formed by a deuteron and a negative muon mu(-).

6 a distance of 2.5-2.6 A between the closest deuteron and manganese.

7 1-A distance between an acetate methyl group deuteron and the phenoxy oxygen of YZ*.

8 we compared the effects of densely-ionizing deuterons and sparsely-ionizing X-rays on two microscopi

9 is observed between the QCC values of alpha-deuterons and the inverse cube of C(alpha)-H(alpha)...O=

10 ling tensors of the hydrogen-bonded protons (deuterons) and their principal directions with respect t

11 These deuterons are rigid on the (2)H MAS NMR time scale (i.e.

12 r this process decreases to 7.6 s(-)(1) when deuterons are substituted for protons in the aromatic ri

13 s from many of the alanine backbone C(alpha) deuterons as well as the alanine side-chain C(beta) meth

14 s a 6th (distal) ligand; (2) to exchangeable deuterons assigned to Arg127 which may H-bond with the p

15 12)-ene (15-d(1)), which could incorporate a deuteron at the C-12 position on the pathway to doubly l

16 erence in the number of protons exchanged to deuterons at specified solution conditions.

17 erence in the number of protons exchanged to deuterons (based on protein folding under pressure) coul

18 crystal is used to generate and accelerate a deuteron beam (> 100 keV and >4 nA), which, upon strikin

19 " ring of naphthalene, with the closest ring deuteron being located at a distance of approximately 4.

20 evolving complex of photosystem II displaces deuterons bound very closely to the Mn cluster.

21 The mass spectrum of the m/z 166 ion for deuteron-charged methyl dihydrocinnamate showed two peak

22 ntal quadrupolar coupling constants of alpha deuterons (D(alpha) QCC) are reported for the residues o

23 measurements are consistent with substantial deuteron density in the octahedral, interstitial voids o

24 ronment was explicitly shown by exchangeable deuteron ENDOR that implied hydrogen bonding to the quin

25 alpies and entropies are reported for proton-deuteron exchange at 42 amide sites in T4 lysozyme and c

26 atography/mass spectrometry to follow proton-deuteron exchange between D(6)-acetone and water.

27 As shown by the rates of proton-deuteron exchange in ethylenes with halogen substituents

28 lmost entirely by D(2)O rather than hydrogen-deuteron exchange on the protein.

29 Acetone carboxylase-catalyzed proton-deuteron exchange was dependent upon the presence of ATP

30 M experiments investigating the proximity of deuterons exchanged into the vicinity of YZ. after incub

31 trains, but not in non-melanized ones, after deuteron exposure.

32 orded protection against high-dose (1.5 kGy) deuterons for both CN and CA (p-values < 10(-4) ).

33 methyl groups, whereas signals from C(alpha) deuterons generally have not been observed for similar p

34 etry (MS) was used to determine amide proton/deuteron (H/D) exchange rates.

35 Exchangeable proton/deuteron hyperfine couplings, consistent with terminal w

36 (I = 1/2; Fermions), symmetric for identical deuterons (I = 1; Bosons).

37 een as a function of intercalation level for deuterons in both 1 x 1 and 1 x 2 tunnels are consistent

38 Amide protons were allowed to exchange with deuterons in buffered D2O at room temperature, pD 7.25.

39 are photochemically labile and exchange with deuterons in neutral D(2)O solution.

40 ve, degenerate exchange with solvent-derived deuterons in perdeuterated protic solvents such as D(2)O

41 ering the different bonding arrangements for deuterons in the 1 x 1 and 1 x 2 tunnels.

42 dicated by those peptides that retained more deuterons in the complex compared with control experimen

43 igate the local environments and mobility of deuterons in the manganese dioxide tunnel structures.

44 approximately 415 ppm were observed for the deuterons in the tunnel structures of manganite and grou

45 When the deuteron incorporation of the protein-derived peptides w

46 peptides show some decrease in the level of deuteron incorporation upon NAD(+) binding, and another

47 Deuterons increased XTT activity in melanized strains of

48 sis in vivo, but the chemical pathway of the deuterons into fat remains unclear.

49 The deuteron is the simplest compound nucleus, composed of o

50 A simple model of a metal containing deuterons is considered.

51 The deuteron line shapes give an excellent fit to a three-mo

52 Ruetschi deuterons, located in the cation vacancy sites in EMD, w

53 no change in the number and the distance of deuterons magnetically coupled to manganese, indicating

54 Comparing the deuteron modulation of the S(2)-state multiline signal o

55 headpiece subdomain protein at 140-4 K using deuteron NMR longitudinal relaxation measurements.

56 The main techniques employed are deuteron NMR quadrupolar echo line shape analysis, and T

57 s while broadband decoupling both proton and deuteron nuclei.

58 talyzed addition of a solvent derived proton/deuteron occurs on the si face at Calpha of the dienoyl-

59 A sharp quartet ENDOR pattern from a nearby deuteron of substrate was detected for each substrate.

60 A sharp quartet ENDOR pattern from a nearby deuteron of the substrate in a major binding geometry (d

61 arlier solid-state NMR measurements in alpha deuterons of glycine.

62 coupling is observed between nonexchangeable deuterons of methyl-deuterated acetate and YZ..

63 The two deuterons of the reactive carbons, D1 and D2, are closes

64 gen bond) with a slowly exchangeable proton (deuteron) of a side chain/backbone of an amino acid resi

65 The orientation of the proton or deuteron on the (13)Calpha-atom of glycine was assigned

66 in the number of labile protons exchanged to deuterons, or vice versa.

67 onduction electrons is sufficient to allow a deuteron pair to fuse at a rate of 10(-18) sec-1, five p

68 realistic calculation of the fusion rate of deuteron pairs in palladium, this rate being 10(-23) sec

69 rements and mass spectrometry, we found that deuterons permeate through these crystals much slower th

70 in proteins have been confined to side-chain deuterons-primarily (13)CH(2)D or (13)CHD(2) methyl grou

71 Deuteron properties such as the root-mean-square charge

72 cal vapour deposition, which allows a proton-deuteron separation factor of around 8, despite cracks a

73 tion, substitution of 36 methyl protons with deuterons significantly decreased the individual line wi

74 -deutero alpha-halo acids using D(2)O as the deuteron source.

75 (s), during which all the rapidly exchanging deuterons such as those in amide and hydroxyl groups are

76 CA was more resistant to deuterons than CN, and similar resistance was observed f

77 60 ps before the O radical cation can lose a deuteron to water.

78 vealed by the incorporation of a pair of cis deuterons to serve as a stereochemical lighthouse.

79 erence in quantum effects between proton and deuteron transfer for the enzymatic reaction than that i

80 on of GFP drives two parallel, excited-state deuteron transfer reactions with 10 ps and 75 ps time co

81 ee's were observed in all cases since proton/deuteron transfer was slowed down.

82 4 +/- 0.1 and E(a) = 35.1 +/- 0.7 kJ/mol for deuteron transfer.

83 of a 2-pocket active site where the observed deuteron transfers could occur.

84 endence of the rate constants for proton and deuteron transfers: KIE(real) ranging from 17 to 26, E(a

85 gy surface of the hydrogen-bonded proton (or deuteron/triton) was determined.

86 temperatures below 60 K are dominated by the deuteron tunneling mechanism.

87 ng and slow-growing fungi from high doses of deuterons under physiological conditions.

88 and by selective detection of the exchanged deuterons using Q-band 2H Mims electron nuclear double r

89 little change in the shift of the manganite deuterons was observed, consistent with the strong antif

90 The smaller shift of the EMD deuterons was primarily ascribed to the smaller number o

91 Exchanged deuterons were "frozen" in the exchanged state by quench

92 Solvent deuterons were not incorporated into product, which impl

93 zero-point energies of incident protons and deuterons, which translates into the equivalent differen

94 times were associated with relatively mobile deuterons, which were contributed almost entirely by D(2

95 r this sample defined the location of the D1 deuteron, with respect to the g-frame of the iron center