4Y3K:
reference: A unique serpin P1' glutamate and a conserved beta-sheet C arginine are key residues for activity, protease recognition and stability of serpinA12 (vaspin)., Ulbricht D, Pippel J, Schultz S, Meier R, Strater N, Heiker JT, Biochem J. 2015 Jul 21. pii: BJ20150643. PMID: 26199422

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