H-Bond


Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.

H-Bond

A former savings bond in the United States that paid interest on its principal semi-annually. Unlike Series E bonds, which paid interest only at redemption, H-bonds provided bondholders with current income on their investments. H-bonds were issued at face value, were exempt from state and local taxes, and had a fixed interest rate. They were issued between 1952 and 1979 and were replaced by the Series HH bond in 1980.
References in periodicals archive ?
H-bonded N-H N--H......O Sample code S1 X1 (%) X1' (%) S2 X2 (%) PANI-DBSA 10.49 31.76 PP/PANI 1 0.16 29.67 0.24 0.006 1.03 PP/PANI 2 0.29 24.89 0.39 0.003 0.28 PP/PANI 3 1.36 14.22 0.46 0.07 0.75 PP/PANI 4 0.12 1.73 0.23 PP/PANI 5 0.15 4.98 0.23 H-bonded N--H N--H......N N--H......Cl "Free" N--H C--H Sample S3 X3 X3' S4 X4 [v.sub.C-H] [S.sub.C-H] code (%) (%) (%) PANI-DBSA 18.57 56.25 3.96 11.99 PP/PANI 1 0.37 69.30 0.56 2955.7 66.29 PP/PANI 2 0.88 74.83 1.18 2955.7 74.63 PP/PANI 3 8.16 85.03 1.75 2956.5 297.27 PP/PANI 4 6.70 98.27 12.96 2957.3 51.72 PP/PANI 5 2.87 95.02 4.31 2955.7 66.51
Comparing to H-bond simulation results, we can assume that Glu110 forms a more stable H-bond.
To observe the binding force of the ligand and protein, we utilized distance of H-bond between the ligand and essential amino acids.
The ligand RMSD indicates that the ligand has a variation of between 5 ns and 16 ns; otherwise, the H-bond distance is not transformed with the ligand (Figure 11).
Trichosanatine exists hydrogen bonds (H-bonds) with key residues Arg89 and Arg214.
Table 3: H-bond occupancy for FKBP (1Q1C) with six kinds of anthocyanin and FK506 for a simulation time of 20 ns.
Asp103, Leu21, Cys99, Glu149, Cal29, Val152, Gly22, and Gly102 108 present their crucial effect on IKK2 inhibition through H-bond formation and hydrophobic interaction.
It is much less favorable for H-bond formation between C=O and R2 = C[H.sub.2]Cl.
Following the approach of Kalinichev [43], the total H-bonds in the simulation box were expressed as "H-bond total per water molecule" by dividing total H-bonds with 55, the total number of water molecules in the simulation box (Table 2).
Noteworthily, the methoxyethyl ether group of 4 projects into the cytosolic solution and forms an additional H-bond with Pro266 at the solvent-exposed surface of the [A.sub.2A]R, connecting with the cytosolic solution.
Ibrutinib with a lower binding energy of -59.65 kcal[mol.sup.-1] and considerably good Glide XP score of -10.50 kcal[mol.sup.-1] (Table 1) forms H-bond interaction between theoxygenatomofdiphenylether side chainand thephenolic hydroxyl group of Tyr327 (helix 5) of protein (Figure 2(b)).
On the other hand, docked PCNPs against G-Quadruplex macromolecule showed Glide score in the range of -1.007 to 0.49; the reason for this poor score may be a consequence of fewer H-bond interactions.