Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Mol Biol. 2003 Dec 5;334(4):781-91.

Uncovering network systems within protein structures.

Author information

  • 1Oxford Centre for Molecular Sciences and Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QH, UK. lesley.greene@bioch.ox.ac.uk

Abstract

Traditionally, proteins have been viewed as a construct based on elements of secondary structure and their arrangement in three-dimensional space. In a departure from this perspective we show that protein structures can be modelled as network systems that exhibit small-world, single-scale, and to some degree, scale-free properties. The phenomenological network concept of degrees of separation is applied to three-dimensional protein structure networks and reveals how amino acid residues can be connected to each other within six degrees of separation. This work also illuminates the unique features of protein networks in comparison to other networks currently studied. Recognising that proteins are networks provides a means of rationalising the robustness in the overall three-dimensional fold of a protein against random mutations and suggests an alternative avenue to investigate the determinants of protein structure, function and folding.

PMID:
14636602
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk