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+ | {{tag>structure}} | ||
+ | ====== Hydrogen Bond ======= | ||
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+ | 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. | ||
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+ | ===== References ===== | ||
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+ | {{pubmed>long:8182748}} | ||
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