FOLH1 and posterior cortical atrophy: Binding affinities (IC50) of the cold reference ligands EuE-k-FBOA, EuE-k-β-a-FPyl, F-DCFPyl, and F-PSMA-1007 were determined in a competitive binding assay using LNCaP human PCa cells and ([125I]I-BA)KuE as radioligand (0.2 nM) [20].