1DWM:
reference: Determination of a high precision structure of a novel protein, Linum usitatissimum trypsin inhibitor (LUTI), using computer-aided assignment of NOESY cross-peaks., Cierpicki T, Otlewski J, J Mol Biol 2000 Oct 6;302(5):1179-92. PMID: 11183783

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