1PSR:
reference: EF-hands at atomic resolution: the structure of human psoriasin (S100A7) solved by MAD phasing., Brodersen DE, Etzerodt M, Madsen P, Celis JE, Thogersen HC, Nyborg J, Kjeldgaard M, Structure 1998 Apr 15;6(4):477-89. PMID: 9562557

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).