>1Y1K_1|Chain A[auth E]|subtilisin BPN'|Bacillus amyloliquefaciens (1390) AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIGVLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSGSSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPNWTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQHHHHHH >1Y1K_2|Chain B[auth I]|chymotrypsin inhibitor 2|Hordeum vulgare (4513) MKTEWPELVGKSVEEAKKVILQDKPAAQIIVLPVGTIVAMEYRIDRVRLFVDRLDNIAQVPRVG