Folks A recent article by Pavel Afonine in the Computational Crystallography Newsletter highlighted the flexible interface for alternative locations in Phenix. You can read it here: http://phenix-online.org/newsletter/CCN_2015_07.pdf#page=12 It recently came to my attention that some users who have an example of the Number 5 were having trouble viewing their models in Coot. After communicating with Paul Emsley, it turns out that you need a recent version of Coot (I ungraded from 0.8 to 0.8.2) and add the line allow_duplicate_sequence_numbers() to your ~/.coot.py file. You can test this using PDB 1ejg. Cheers Nigel --- Nigel W. Moriarty Building 33R0349, Physical Biosciences Division Lawrence Berkeley National Laboratory Berkeley, CA 94720-8235 Phone : 510-486-5709 Email : [email protected] Fax : 510-486-5909 Web : CCI.LBL.gov