Search Databases with BLAST

This BLAST website is for demonstration purposes; it provides the same protein databases as the FASTA WWW site.

For reliable BLAST searches, use the NCBI Blast web site.

FASTA Program information

Search Databases with FASTA
Search Databases with PSI-SEARCH2
Find Internal Duplications (lalign/plalign)
Retrieve result RID:
Show recent searches

Choose: (A) Program, (B) Query (sequence/accession), (C) Database and (D) Start Search:

(A) Program: Composition Statistics
Filter (seg) low-complexity

(B) Query sequence:  Subset range: Use Subset range

Annotate Query Sequence (SwissProt accessions)

Upload annotation file: 

Entrez protein / Entrez DNA sequence browser
Uniprot sequence browser

Or upload query from file: 
Protein DNA (both-strands) DNA (forward only) DNA (rev-comp only)

(C) Database:      (D) Start Search
Protein DNA

Comments (optional):

Other search options:
Scoring matrix:

FASTA program information | Download FASTA | About the Author

Copyright © 1996, 1997, 1998, 1999, 2002, 2014, 2015 by William R. Pearson and The Rector & Visitors of the University of Virginia
The FASTA package is open source software, licensed under the Apache License, Version 2.0 (the "License"); you may not copy this software except in compliance with the License. You may obtain a copy of the License at: