Short hydrogen bonds in proteins

Rajagopal, Sathyapriya and Vishveshwara, Saraswathi (2005) Short hydrogen bonds in proteins. In: FEBS Journal, 272 (8). pp. 1819-1832.

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Abstract

Short hydrogen bonds are present in many chemical and biological systems. It is well known that these short hydrogen bonds are found in the active site of enzymes and aid enzyme catalysis. This study aims to systematically characterize all short hydrogen bonds from a nonredundant dataset of protein structures. The study has revealed that short hydrogen bonds are commonly found in proteins and are widely present in different regions of the protein chain, such as the backbone or side chain, and in different secondary structural regions such as helices, strands and turns. The frequency of occurrence of donors and acceptors from the charged side chains as well as from the neutral backbone atoms is equally high. This suggests that short hydrogen bonds in proteins occur either due to increased strength or due to geometrical constraints and this has been illustrated from several examples.

Item Type:	Journal Article
Publication:	FEBS Journal
Publisher:	FEBS
Additional Information:	The copyright belongs to FEBS.
Keywords:	short hydrogen bonds;donor-acceptor of backbone/side chain;secondary structural and residue frequency;geometrical constraint;hydrogen bond strength
Department/Centre:	Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited:	03 Mar 2006
Last Modified:	19 Sep 2010 04:24
URI:	http://eprints.iisc.ac.in/id/eprint/5658

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