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1.  Visualization of near-optimal sequence alignments 
Bioinformatics (Oxford, England)  2004;20(6):953-958.
Motivation
Mathematically optimal alignments do not always properly align active site residues or well-recognized structural elements. Most near-optimal sequence alignment algorithms display alternative alignment paths, rather than the conventional residue-by-residue pairwise alignment. Typically, these methods do not provide mechanisms for finding effectively the most biologically meaningful alignment in the potentially large set of options.
Results
We have developed Web-based software that displays near optimal or alternative alignments of two protein or DNA sequences as a continuous moving picture. A WWW interface to a C++ program generates near optimal alignments, which are sent to a Java Applet, which displays them in a series of alignment frames. The Applet aligns residues so that consistently aligned regions remain at a fixed position on the display, while variable regions move. The display can be stopped to examine alignment details.
Availability
Available at http://fasta.bioch.virginia.edu/ noptalign. For source code contact the authors at wrp@virginia.edu
Contact
wrp@virginia.edu
doi:10.1093/bioinformatics/bth013
PMCID: PMC2836811  PMID: 14751975

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