If the models are all in separate PDB files, you can use the AQUA script, joinpdb (see Appendix C), to merge them into a single PDB file.
Note that if you are only running AQUA, the coordinates can be in BIOSYM format.
Step 2. Run qconvert
(If you have no restraints file, or it cannot be converted, skip to step 4).
Step 3. Run AQUA
Step 4. Run PROCHECK-NMR
Additionally, you might want to:-