>3BTW_1|Chain A[auth E]|PROTEIN (TRYPSIN)|Bos taurus (9913) IVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRLGEDNINVVEGNEQFISASKSIVHPSYNSNTLNNDIMLIKLKSAASLNSRVASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKAPILSDSSCKSAYPGQITSNMFCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNKPGVYTKVCNYVSWIKQTIASN >3BTW_2|Chain B[auth I]|PROTEIN (BOVINE PANCREATIC TRYPSIN INHIBITOR)|Bos taurus (9913) RPDFCLEPPYTGPCWARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCLRTCGGA