Input two PDB identifiers (or upload the PDB-formatted coordinates) and specify the chain names

First PDB ID or Chain (required)
Second PDB ID or Chain (required)

email address
Confirm

Customize surFit calculation (optional)

Structure to be fixed:

Largest First Second

User-defined binding propensities

Format: residue number, chain ID, 3-letter AA code, propensity (space or tab-delimited).
First file
second file

Weights for binding propensities

PINUP The default score, based on conservation, residue type, and structure
ET Evolutionary trace, based on phylogenetic analysis
User-defined Provide your own score

User-defined docking restraints (these are strict restraints)

Format: residue number, chain ID, 3-letter AA code, distance (space or tab-delimited). Any residue within the specificed distance of the specified residue will be included in the docking calculation; all others will be omitted.
First file
second file

User-defined scoring restraints (these are soft restraints)

Format: residue number, chain ID, 3-letter AA code, distance (space or tab-delimited). Any residue within the specificed distance of the specified residue will be included in the docking calculation; all others will be omitted.
First file
second file

Docking Resolution Grid