Preparing PDBx/mmCIF files from Phenix/REFMAC


Preparing large structures for deposition

For depositors working with large structures that exceed the PDB file format limit (> 62 chains or > 99,999 atoms), the best way to deposit your structure is in PDBx/mmCIF format.

Recent versions of the refinement packages Phenix (version 1.8.2 or newer) and REFMAC (version 5.8 or newer) support outputting PDBx/mmCIF files directly and ready for deposition. Package specific instructions are:

If you have have any questions about the above instructions, we suggest that you contact the authors of the program in question.