2IDR:
reference: The structure of eukaryotic translation initiation factor-4E from wheat reveals a novel disulfide bond., Monzingo AF, Dhaliwal S, Dutt-Chaudhuri A, Lyon A, Sadow JH, Hoffman DW, Robertus JD, Browning KS, Plant Physiol. 2007 Apr;143(4):1504-18. Epub 2007 Feb 23. PMID: 17322339

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