1Z68:
reference: Structural and Kinetic Analysis of the Substrate Specificity of Human Fibroblast Activation Protein {alpha}., Aertgeerts K, Levin I, Shi L, Snell GP, Jennings A, Prasad GS, Zhang Y, Kraus ML, Salakian S, Sridhar V, Wijnands R, Tennant MG, J Biol Chem 2005 May 20;280(20):19441-4. Epub 2005 Apr 4. PMID: 15809306

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