Basic options
Advanced options
Fix structure
Add environment
Clicking the option below will invoke the reconstruction of the biological assembl(y/ies) using the information in the input PDB file ('REMARK 300 and 'REMARK 350').
More information is provided in the About section.

Reset to defaults

1. Select Options

This section allows you to select the basic parameters of the structure analysis to be performed. If you are not sure which options to select, leave them at their default settings. Note that invoking additional calculations may increase the calculation time.
2. Fix Structure

This section allows you to repair or modify the structure using PDBfixer. You can add missing atoms, residues, loops or convert non-standard residues to their standard equivalents.
3. Biological Assembly

This section enables reconstruction of the biological assembl(y/ies) using the information in the input file PDB ('REMARK 300 and 'REMARK 350'). More information is provided in the About section.
4. Upload file

Finally you can upload your files by dropping them into the dropbox, or you can download a structure from the Protein Data Bank. PDB file format is required.