Dear Lee, I would recommend that you visit: https://www.ebi.ac.uk/pdbe/entry/pdb/1g4a/analysis there you can download the assembly indicated by the REMARK 350 Octadecamer that describes the "AUTHOR DETERMINED BIOLOGICAL UNIT". The download will be in mmcif format that many programs can support. If you need the coordinates in PDB format then there are a number of ways to convert. I would recommend using CCP4 coot to load and save.
Hope this helps, Oliver ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
