Their simulations allowed them to examine how the supercooled water
hydrogen bonding network changed over time.
Not exact matches
Amino acids known to regulate receptor function are linked through packing interactions and a
network of
hydrogen bonds, suggesting a conformational pathway from the ligand - binding pocket to regions that interact with G proteins.
Rather, they assembled a variety of different polymer building blocks that carried different chemical functions, such as having an acidic appendage, an alkaline sidearm, or being able to create a
network of weakly interacting
hydrogen bonds.
When the water is drained away Berglund found that the fibres join together into
networks held by
hydrogen bonds, forming flat sheets of «nanopaper».
Seeing
hydrogen is critical to studying protonation states of an enzyme and ligand — a molecule that binds to a biological macromolecule — and to analyzing the architecture of
hydrogen -
bonding networks.
The resulting proton chains serve as a «road» in the
hydrogen bridge
network that make possible long proton jumps across multiple
hydrogen bridge
bond formations.
Results from these and other studies are yielding important insights into the cooperativity effects in
hydrogen bonding, aqueous solvation, and
hydrogen -
bond network rearrangement dynamics, which promise to enhance our understanding of solid and liquid water behavior.
Why it matters:
Hydrogen bonds and the
networks they form play an important role in understanding and controlling processes from refining crude oil to metabolizing proteins.
Pure water contains a
hydrogen -
bonding network due to the negative oxygen ions wanting to
bond with the positive
hydrogen ions.
These properties allow a spatial resolution on the sub-molecular scale allowing to visualize the
bonding structure of a
hydrogen bonded molecular
network.
X-ray crystallography revealed that the isothiourea moiety was making an extended
network of
hydrogen bonds with functional groups that were key to BACE1's catalytic activity.