5L6N:
reference: Tyrosine sulfation modulates activity of tick-derived thrombin inhibitors., Thompson RE, Liu X, Ripoll-Rozada J, Alonso-Garcia N, Parker BL, Pereira PJB, Payne RJ, Nat Chem. 2017 Sep;9(9):909-917. doi: 10.1038/nchem.2744. Epub 2017 Mar 20. PMID: 28837178

This OCA Structure page
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