1BA7:
reference: Structure of the Kunitz-type soybean trypsin inhibitor (STI): implication for the interactions between members of the STI family and tissue-plasminogen activator., De Meester P, Brick P, Lloyd LF, Blow DM, Onesti S, Acta Crystallogr D Biol Crystallogr 1998 Jul 1;54 ( Pt 4):589-97. PMID: 9761854

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