1VR1:
reference: The variable region-1 from tissue-type plasminogen activator confers specificity for plasminogen activator inhibitor-1 to thrombin by facilitating catalysis: release of a kinetic block by a heterologous protein surface loop., Dekker RJ, Eichinger A, Stoop AA, Bode W, Pannekoek H, Horrevoets AJ, J Mol Biol 1999 Oct 29;293(3):613-27. PMID: 10543954

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