Program
QUERY
Database
blastp
amino acid sequence
protein
sequence database.
blastn
nucleotide sequence
nucleotide
sequence database.
blastx
nucleotide sequence translated in all reading frames
protein
sequence database
(use this option to find potential translation products
of an unknown nucleotide sequence)
tblastn
amino acid sequence
nucleotide sequence database translated in all reading
frames
tblastx
six-frame translations
of a nucleotide sequence
six-frame translations of a nucleotide sequence database.
(tblastx program cannot be used with the nr database
on the BLAST Web page because it is
computationally intensive)
The BLAST
Family