FACE2FACE is a web-based service to analyse interfaces between biological macromolecules.

Enter 4-letter PDB Code

Enter a single pdb code of the biological complex or multimeric structure (e.g., 2bte, 3zvj).

Select PDB Assembly

More than one Biological Assembly found (e.g., 2BTE). The assembly to be analysed has to be specified.

Select chains or region of interests

PDB chains are listed. Interfaces inside same chains are allowed. In this case, the specific regions of interaction must be selected.

Upload coordinates of your structure

Click on “Choose File” if you want to upload and analyse your own structure. The input file must contain atomic coordinates in PDB format.

Chain 1, Chain 2

Select the interacting chains. The order of Chain1 and Chain2 is not influent.

Distance threshold

Two interface atoms are defined to be in contact is their distance is not higher than the threshold value. The default threshold value is 4.0 Å, but this can be modified by the user.

Submit

Click on this button to perform the analysis.

Reset

Click on this button to restart FACE2FACE.

Download Results

A compressed (zip) file was created. Click on this button to download it. The results are explained in the README file.