1GZJ:
reference: The 1.62 A structure of Thermoascus aurantiacus endoglucanase: completing the structural picture of subfamilies in glycoside hydrolase family 5., Lo Leggio L, Larsen S, FEBS Lett 2002 Jul 17;523(1-3):103-8. PMID: 12123813

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