Serine protease 1 (EC 3.4.21.4) (Anionic trypsin I) (Anionic trypsin-I) (Beta-trypsin) (Cationic trypsinogen) (Pretrypsinogen I) (Trypsin I) (Trypsin-1) [Cleaved into: Alpha-trypsin chain 1; Alpha-trypsin chain 2]
1_MNPLL 6_ ILTFV 11_ AAALA 16_ APFDD 21_ DDKIV 26_ GGYNC 31_ EENSV 36_ PYQVS 41_ LNSGY 46_ HFCGG 51_ SLINE 56_ QWVVS 61_ AGHCY 66_ KSRIQ 71_ VRLGE 76_ HNIEV 81_ LEGNE 86_ QFINA 91_ AKIIR 96_ HPQYD 101_ RKTLN 106_ NDIML 111_ IKLSS 116_ RAVIN 121_ ARVST 126_ ISLPT 131_ APPAT 136_ GTKCL 141_ ISGWG 146_ NTASS 151_ GADYP 156_ DELQC 161_ LDAPV 166_ LSQAK 171_ CEASY 176_ PGKIT 181_ SNMFC 186_ VGFLE 191_ GGKDS 196_ CQGDS 201_ GGPVV 206_ CNGQL 211_ QGVVS 216_ WGDGC 221_ AQKNK 226_ PGVYT 231_ KVYNY 236_ VKWIK 241_NTIAA
1: Has activity against the synthetic substrates Boc-Phe-Ser-Arg-Mec, Boc-Leu-Thr-Arg-Mec, Boc-Gln-Ala-Arg-Mec and Boc-Val-Pro-Arg-Mec. The single-chain form is more active than the two-chain form against all of these substrates