Transmembrane helix-helix interaction prediction based on residue contacts


Copy and paste the protein sequence(s) in FASTA format in the box below. Click on 'show example' and a sample protein sequence will appear. Please enter your email address and make sure you have entered it correctly otherwise you will not receive the results. At the present time, we provide service for academic users only. Currently we do not accept batch queries.

Click Submit button and the prediction results will be sent to the address specified shortly.


* Field must be entered.

*Enter your email address (academic users only).

*Copy and paste your sequence in FASTA format.
The length of the sequence must not be less than 30 or more than 4000. Show example.

*Select one of the following options to define the topology: (help)
Input by Segment Input by Residue

Specify the N-terminal topology and the start and end positions of each helix below.
  • starts at ends at
  • starts at ends at
Add another TMH