2JOI:
reference: Solution structure of the hypothetical protein TA0095 from Thermoplasma acidophilum: A novel superfamily with a two-layer sandwich architecture., Leon E, Yee A, Ortiz AR, Santoro J, Rico M, Jimenez MA, Protein Sci. 2007 Oct;16(10):2278-86. Epub 2007 Aug 31. PMID: 17766377

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