1FJS:
reference: Preparation, characterization, and the crystal structure of the inhibitor ZK-807834 (CI-1031) complexed with factor Xa., Adler M, Davey DD, Phillips GB, Kim SH, Jancarik J, Rumennik G, Light DR, Whitlow M, Biochemistry 2000 Oct 17;39(41):12534-42. PMID: 11027132

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