>3SIC_1|Chain A[auth E]|SUBTILISIN BPN'|Bacillus amyloliquefaciens (1390) AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIGVLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSGSSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPNWTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQ >3SIC_2|Chain B[auth I]|STREPTOMYCES SUBTILISIN INHIBITOR (SSI)|null (1887) YAPSALVLTVGKGVSATTAAPERAVTLTCAPGPSGTHPAAGSACADLAAVGGDLNALTRGEDVMCPKVYDPVLLTVDGVWQGKRVSYERVFSNECEMNAHGSSVFAF