0 a weak connection that is formed between an atom of hydrogen and an atom of another substance such as oxygen or nitrogen
1 a weak connection that is formed between an atom of hydrogen (= a gas) and an atom of another substance such as oxygen or nitrogen (= a gas)
One of the aspartates that formerly interacted with the tyrosine now forms a hydrogen bond with a conserved histidine.
None of the sulfide ions make any favorable hydrogen bond to the protein.
Its frequency depends on the strength of the hydrogen bond.
The reason for this is easily understood since ammonia forms a hydrogen bond that imidazole (or histidine) cannot form.
Furthermore, simulated annealing does not provide well-defined conformations, but the different conformations that are observed are consistent with several possible hydrogen bond combinations.
The transition is opposed by the loss in conformational entropy, and driven by gains in free energy due to hydrophobic burial and hydrogen bond formation.
The environment of the iron-sulfur cluster is not exceptional having, on average, one hydrogen bond per liganding cysteine and otherwise a surrounding hydrophobic environment.
Note the hydrogen bond between the exocyclic amine of the 3h cytosine base and the non-bridging oxygen of the phosphate at the exchange point.
