BLAST Similarity Searching

Paste your sequence(s) (in FASTA format) in the box below:

Or upload a sequence file:

BLAST version 2.2.20

Search type

	PROTEIN sequence	versus	PROTEIN database
	PROTEIN sequence	versus	NUCLEOTIDE database
	NUCLEOTIDE sequence	versus	NUCLEOTIDE database
	NUCLEOTIDE sequence	versus	PROTEIN database

Available databases

Protein databases
	UniProt/Swiss-Prot
	UniProt/Trembl
	NBRF/PIR (obsolete)
	RefSeq P
	Brookhaven database (PDB)
	Prints

Nucleotide databases
	EMBL (batch only)
	EMBL updates
	EMBL EST (batch only)
	EMBL WGS (batch only)
	RefSeq N
	UNIGENE

Options and parameters

Search parameters
Filter low-complexity regions	Yes No
Expectation score

Protein scoring parameters
Scoring matrix
Gap open/extension pair

Alignment options
View

Output options
Number of descriptions
Number of alignments
HTML output	Yes No

Word size
Word size (protein):
Word size (nucleic):

© 2008 Laboratory of Bioinformatics, WUR


Version 1.1; Last Modified 27 April, 2008 by JL