3REN:
reference: Structural analysis of CPF_2247, a novel alpha-amylase from Clostridium perfringens., Ficko-Blean E, Stuart CP, Boraston AB, Proteins. 2011 Oct;79(10):2771-7. doi: 10.1002/prot.23116. Epub 2011 Aug 26. PMID: 21905105

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