3WN6:
reference: Crystal structure of alpha-amylase from Oryza sativa: molecular insights into enzyme activity and thermostability., Ochiai A, Sugai H, Harada K, Tanaka S, Ishiyama Y, Ito K, Tanaka T, Uchiumi T, Taniguchi M, Mitsui T, Biosci Biotechnol Biochem. 2014;78(6):989-97. doi: 10.1080/09168451.2014.917261. , Epub 2014 Jun 18. PMID: 25036124

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