FKBP5 and Borderline personality disorder: Authors found that two FKBP Prolyl Isomerase 5 (FKBP5) alleles (rs3798347-T and rs10947563-A) were more frequent in BPD subjects who experienced physical abuse and emotional neglect and two Corticotropin-releasing factor receptor 2 (CRHR2) variants (rs4722999-C and rs12701020-C) were more common in BPD subjects sexually and physically abused (95).