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Related Experiment Videos

Short hydrogen bonds in proteins.

Sathyapriya Rajagopal1, Saraswathi Vishveshwara

  • 1Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India.

The FEBS Journal
|April 12, 2005
PubMed
Summary

Short hydrogen bonds are prevalent in proteins, often found in enzyme active sites. This study systematically characterizes these bonds, revealing their common occurrence in various protein regions and secondary structures.

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Area of Science:

  • Biochemistry
  • Structural Biology
  • Protein Science

Background:

  • Short hydrogen bonds are crucial in chemical and biological systems.
  • They are known to play a significant role in enzyme active sites, facilitating catalysis.

Purpose of the Study:

  • To systematically characterize short hydrogen bonds within a nonredundant protein structure dataset.
  • To understand the distribution and significance of short hydrogen bonds in protein architecture.

Main Methods:

  • Analysis of a curated, nonredundant dataset of protein structures.
  • Systematic identification and characterization of short hydrogen bond occurrences.

Main Results:

  • Short hydrogen bonds are frequently observed in proteins.
  • These bonds are distributed across various protein regions, including backbone and side chains.
  • They are found in diverse secondary structural elements like helices, strands, and turns.
  • Charged side chains and neutral backbone atoms show a high frequency of participation as donors and acceptors.

Conclusions:

  • Short hydrogen bonds are a common feature in protein structures.
  • Their prevalence suggests they arise from either inherent bond strength or specific geometrical arrangements.
  • These bonds likely contribute to protein stability and function.

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