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Chaining multiple-alignment blocks

Z Zhang1, B Raghavachari, R C Hardison

  • 1Department of Computer Science and Engineering, Pennsylvania State University, University Park 16802, USA.

Journal of Computational Biology : a Journal of Computational Molecular Cell Biology
|January 1, 1994
PubMed
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This study introduces a fast method for creating multiple sequence alignments by identifying chains of conserved blocks. This approach efficiently finds significant sequence patterns, like phylogenetic footprints, in genetic data.

Area of Science:

  • Bioinformatics
  • Computational Biology
  • Genomics

Background:

  • Multiple sequence alignment is crucial for identifying conserved regions.
  • General alignment methods can be computationally intensive.
  • Identifying blocks of exact matches is important for evolutionary studies.

Purpose of the Study:

  • To develop a time-efficient method for constructing multiple sequence alignments.
  • To focus on identifying the highest-scoring chain of conserved blocks.
  • To facilitate the discovery of specific sequence patterns like phylogenetic footprints.

Main Methods:

  • Derivation of a novel algorithm for block-based multiple alignment.
  • Implementation of a method optimized for speed compared to general alignment tools.

Related Experiment Videos

  • Application of the method to identify exact matches of length 6+ in gene flanking regions.

    • Main Results:

    • The developed method is faster than general-purpose multiple alignment programs.
    • The approach successfully identified a chain of phylogenetic footprints in mammalian epsilon-globin genes.
    • Demonstrated utility in discovering conserved sequence blocks meeting specific criteria.

    Conclusions:

    • The block-chaining alignment method offers a time-efficient alternative for sequence analysis.
    • This method is particularly valuable for studies prioritizing the discovery of conserved blocks.
    • The technique provides a powerful tool for evolutionary and comparative genomics research.