protein Homo sapiens protein Kunitz-type protease inhibitor 2 (human) HAI2 hepatocyte growth factor activator inhibitor type 2 (human) UniProtKB:O43291 A Kunitz-type protease inhibitor 2 that is encoded in the genome of human. protein hSPINT2 placental bikunin (human) Category=organism-gene. KOP SPINT2 HAI-2 (human) PR:O43291