Protein to Protein BLAST (blastp)

Request a New BLAST

Enter Protein Query Sequence

Enter one or more queries in the top text box or use the browse button to upload a file from your local disk. The file may contain a single sequence or a list of sequences. In both cases, the data must be in FASTA format.

Show an Example Sequence

Enter FASTA sequence(s)

Enter query sequence(s) in the text area.

Choose Search Target

Choose from one of the protein BLAST databases listed below.

Protein BLAST Databases:

Advanced Options

General parameters

Max target sequences:

Select the maximum number of aligned sequences to display

e-value(Expect threshold)

Expected number of chance matches in a random model.

Word size:

The length of the seed that initiates an alignment

Scoring parameters

Matrix

Assigns a score for aligning pairs of residues, and determines overall alignment score..

Gap Costs:

Cost to create and extend a gap in an alignment.

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Protein to Protein BLAST (blastp)

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