1S3P:
reference: Crystal structure of a high-affinity variant of rat alpha-parvalbumin., Lee YH, Tanner JJ, Larson JD, Henzl MT, Biochemistry 2004 Aug 10;43(31):10008-17. PMID: 15287728

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