>1Y4D_2|Chain B[auth I]|chymotrypsin inhibitor 2|Hordeum vulgare (4513) MKTEWPELVGKSVEEAKKVILQDKPAAQIIVLPVGTIVTRSYRIDRVRLFVDRLDNIAQVPRVG >1Y4D_1|Chain A[auth E]|subtilisin BPN'|Bacillus amyloliquefaciens (1390) AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIGVLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSGSSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPNWTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQHHHHHH