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Related Experiment Videos

Vorolign--fast structural alignment using Voronoi contacts.

Fabian Birzele1, Jan E Gewehr, Gergely Csaba

  • 1Practical Informatics and Bioinformatics Group, Department of Informatics, Ludwig-Maximilians-University, Munich, Germany. fabian.birzele@ifi.lmu.de

Bioinformatics (Oxford, England)
|January 24, 2007
PubMed
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Vorolign is a new protein structure alignment method that uses evolutionary conservation to handle flexibility. It accurately identifies protein families and performs pairwise and multiple alignments efficiently.

Area of Science:

  • Structural bioinformatics
  • Computational biology
  • Protein structure analysis

Background:

  • Protein structure alignment is crucial for understanding protein function and evolution.
  • Existing methods may struggle with proteins exhibiting significant structural flexibility.

Purpose of the Study:

  • Introduce Vorolign, a novel method for fast and flexible structural alignment of two or more protein structures.
  • To enable accurate protein structure comparison, even in the presence of flexibility.

Main Methods:

  • Utilizes double dynamic programming for structural alignment.
  • Employs a novel similarity function based on the evolutionary conservation of Voronoi-contacts between residues.
  • Generates multiple structural alignments via a consistency-based, progressive strategy from pairwise alignments.

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Main Results:

  • Vorolign demonstrates high accuracy in automatic protein family detection, classifying proteins according to SCOP.
  • Achieves efficient database scanning, with an average scan time of 1 minute per target against a database of over 4000 proteins.
  • Performs comparably to existing methods in both pairwise and multiple protein structure alignment tasks.

Conclusions:

  • Vorolign offers a robust and efficient solution for protein structure alignment, particularly for flexible structures.
  • The method facilitates accurate protein family classification and provides reliable pairwise and multiple alignments.
  • Vorolign is accessible as a free web server for academic users.