| hydrogen bond |
A hydrogen bond is a polar interaction between two electronegative atoms, a donor, and an acceptor. In proteins hydrogen bonds involving the main chain oxygen and amide are critical in forming the secondary structures. The polar side chains also form hydrogen bonds. Energetically it is important to satisfy all hydrogen bond donors and acceptors. In proteins more than 90% of side chain atoms are 'satisfied' by forming hydrogen bonds to protein atoms or solvent
출처: xray.bmc.uu.se/~kenth/bioinfo/glossary.html
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| hydrogen bond |
The hydrogen atoms in water are very positive, because the oxygen atom strongly withdraws the electrons in the OH bonds. The hydrogen atoms on adjacent molecules are attracted to the oxygen atoms forming a bond which is stronger than the usual polar attraction, but less strong than a typical covalent bond. This accounts for the very high boiling point of water compared with other similar weight molecules.
출처: eies.njit.edu/~kebbekus/definitions-aquatic-chem%2...
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| hydrogen bond |
A weak chemical interaction between an electronegative atom (eg nitrogen or oxygen) and a hydrogen atom that is covalently attached to another atom. This bond maintains the two-helices of DNA together and is also the primary interaction between water molecules.
출처: lomiweb.med.auth.gr/xml_output/bioglossary/H_gloss...
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