FAP

Ac-Gly-BoroPro is a selective FAP inhibitor with a Ki of 23 nM.

Talabostat (Val-boroPro; PT100) is an orally active and nonselective dipeptidyl peptidase IV (DPP-IV) inhibitor (IC50 < 4 nM; Ki = 0.18 nM) and the first clinical inhibitor of fibroblast activation protein (FAP) (IC50 = 560 nM).