1FW2:
reference: Structural investigations of calcium binding and its role in activity and activation of outer membrane phospholipase A from Escherichia coli., Snijder HJ, Kingma RL, Kalk KH, Dekker N, Egmond MR, Dijkstra BW, J Mol Biol 2001 Jun 1;309(2):477-89. PMID: 11371166

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