BLAST finds regions of similarity between biological sequences. more...
The Basic Local Alignment Search Tool (BLAST) finds regions of local
similarity between sequences. The program compares nucleotide or
protein sequences to sequence databases and calculates the statistical
significance of matches. BLAST can be used to infer functional and
evolutionary relationships between sequences as well as help identify
members of gene families.
BLAST Assembled RefSeq Genomes
Choose a species genome to search, or list all genomic BLAST databases.
Basic BLAST
Program | Program Description |
---|---|
nucleotide blast | Search a nucleotide database using a nucleotide query Algorithms: blastn, megablast, discontiguous megablast |
protein blast | Search protein database using a protein query Algorithms: blastp, psi-blast, phi-blast, delta-blast |
blastx | Search protein database using a translated nucleotide query |
tblastn | Search translated nucleotide database using a protein query |
tblastx | Search translated nucleotide database using a translated nucleotide query |
Specialized BLAST
Choose a type of specialized search (or database name in parentheses.)
- Make specific primers with Primer-BLAST
- Search trace archives
- Find conserved domains in your sequence (cds)
- Find sequences with similar conserved domain architecture (cdart)
- Search sequences that have gene expression profiles (GEO)
- Search immunoglobulins (IgBLAST)
- Search using SNP flanks
- Screen sequence for vector contamination (vecscreen)
- Align two (or more) sequences using BLAST (bl2seq)
- Search protein or nucleotide targets in PubChem BioAssay
- Search SRA transcript and genomic libraries
- Constraint Based Protein Multiple Alignment Tool
- Needleman-Wunsch Global Sequence Alignment Tool
- Search RefSeqGene