3IMA:
reference: Crystal structure of tarocystatin-papain complex: implications for the inhibition property of group-2 phytocystatins., Chu MH, Liu KL, Wu HY, Yeh KW, Cheng YS, Planta. 2011 Aug;234(2):243-54. Epub 2011 Mar 18. PMID: 21416241

This OCA Structure page
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