Hi Everybody,

I encountered a problem recently in converting my PDB file to mmcif

using the pdb_extract tool in rcsb. It simply writes out an empty

file!! I wonder if any of you have faced such a problem before and

know the solution!! I carefully examined the PDB file header and I

couldn’t really find a reason why this PDB failed to be converted. I

only use PHENIX for molecular replacement and refinement. I used the

default TLS refinement so I assume the whole structure will be refined as a group. I hope somebody is familiar with this can help me out.

Thank you very much, Mohd