University of Tehran | Lab of complex biological systems and bioinformatics (CBB)
Fully download our model and run on your server:
Download and start classifing sequences in 5 minutes!

Regularly, input of this model are huge blast result files, so we don't run this tool in our database. You can download our Model-Classifier and classify your whole genes on your local computer.

Download Model-Classifier (14 MB)

This zip file also contains a brief tutorial on how to easily classify your sequences using this method.

Classify by blast

Enter (up to 50) sequences below in FASTA format (Demo Sequence)

Or, upload fasta file:

Sequence type:
Protein (Amino acid) DNA or RNA (Nucleic acid)

Paralogy data:

Classifier hits:
3 5 7 9

Download classify by blast

Simply download and run by blast classifications on your local computer.

Download Blast Classifier (124 MB)

This zip file also contains a brief tutorial on how to start classify by blast on your computer in less than 5 minutes.

Live classify

IDs are discriminated by:
Semicolon Comma Tab Line Space

PQC (5 to 100 percent):
PIdent (15 to 100 percent):
E-value power class (1 to 5):

>>> Using the above selected options, if PQC is 80 or higher, and PIdent is 45 or higher, and E-value power class is 3 or less, the relation between query protein and subject protein is considered as paralog, else it is partial paralog)

Available species? Click here!
Available gene IDs? Click here!
More about Live classify!

Visit the tutorial page to know more about Live classify and how to better use this tool.

PQC: Percent of query coverage
PIdent: Percent of identity
E-value power class:
1: E-value under 1e-100;
2: E-value betweeen 1e-100 and 1e-50;
3: E-value betweeen 1e-50 and 1e-10;
3: E-value betweeen 1e-10 and 1e-5;
3: E-value above 1e-5;