Search Databases with PSI-SEARCH2

This page provides searches against comprehensive databases, like SwissProt and NCBI RefSeq. The PIR1 Annotated database can be used for small, demonstration searches. The NCBI nr database is also provided, but should be your last choice for searching, because its size greatly reduces sensitivity. The best first choice for searching is a genome database from a closely related organism (e.g. RefSeq Human for vertebrates).

The Individual Proteomes/Genomes page provides searches against selected prokaryotes.

FASTA Program information

Search Databases with FASTA
Statistical Significance from Shuffles
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:  

(B) Query sequence:  Subset range: Use Subset range
Entrez protein browser
Uniprot sequence browser

Or upload query from file: 

(C) Database:      (D) Start Search
Exclude low complexity (seg) Include isoforms

Comments (optional):

Other search options:
Query seeding options:
End residues:
Internal residues:
Inclusion E():

Output limits:Max Show Histogram
Best E():
 Hide Alignments
 Hide Good Exons

Alignment Options: Highlight similarities differences compact differences.      Output format:

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: