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BLAST 2 Sequences, a new tool for comparing protein and nucleotide sequences.
1National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA. tatiana@ncbi.nlm.nih.gov
FEMS Microbiology Letters
|May 26, 1999
Summary
BLAST 2 Sequences is a new tool for comparing two homologous protein or nucleotide sequences efficiently. This BLAST-based program avoids lengthy database searches, providing quick pairwise sequence alignments.
Area of Science:
- Bioinformatics
- Computational Biology
- Genomics
Background:
- Standard BLAST is effective for database searches but inefficient for comparing two known homologous sequences.
- Comparing homologous sequences from related species or virus isolates often requires a more direct approach.
Purpose of the Study:
- Introduce BLAST 2 Sequences, a novel tool for pairwise sequence alignment.
- Provide an efficient alternative to database searching for comparing two specific homologous sequences.
Main Methods:
- Utilizes the established BLAST algorithm for direct comparison of two DNA-DNA or protein-protein sequences.
- Offers an interactive World Wide Web interface accessible via the NCBI website.
- Provides downloadable versions for various platforms including PC (Windows), Mac, and UNIX.
Main Results:
- Enables rapid pairwise sequence comparison without extensive database searching.
- Presents sequence alignments in both user-friendly graphical and text formats.
- Facilitates efficient analysis of homologous sequences from related biological entities.
Conclusions:
- BLAST 2 Sequences offers a time-saving solution for specific pairwise sequence alignment tasks.
- The tool enhances the utility of the BLAST algorithm for focused sequence comparisons.
- Accessible online and via downloads, it supports diverse user needs in bioinformatics.