ANTILEUKOPROTEINASE 1 PRECURSOR (ALP) (HUSI-1) (SEMINAL PROTEINASE INHIBITOR) (SECRETORY LEUKOCYTE PROTEASE INHIBITOR) (BLPI) (MUCUS PROTEINASE INHIBITOR) (MPI) (WAP FOUR-DISULFIDE CORE DOMAIN PROTEIN 4) (PROTEASE INHIBITOR WAP4). [Source:SWISSPROT;Acc:P03973]