1CNM:
reference: Enhancement of catalytic efficiency of enzymes through exposure to anhydrous organic solvent at 70 degrees C. Three-dimensional structure of a treated serine proteinase at 2.2 A resolution., Gupta MN, Tyagi R, Sharma S, Karthikeyan S, Singh TP, Proteins 2000 May 15;39(3):226-34. PMID: 10737944

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