>1y0y_B mol:protein length:4 AMASTATIN XVVD >1y0y_B mol:protein length:4 AMASTATIN XVVD >1y0y_A mol:protein length:353 Frv operon protein FrvX MEVRNMVDYELLKKVVEAPGVSGYEFLGIRDVVIEEIKDYVDEVKVDKLGNVIAHKKGE GPKVMIAAHMDQIGLMVTHIEKNGFLRVAPIGGVDPKTLIAQRFKVWIDKGKFIYGVGA SVPPHIQKPEDRKKAPDWDQIFIDIGAESKEEAEDMGVKIGTVITWDGRLERLGKHRFV SIAFDDRIAVYTILEVAKQLKDAKADVYFVATVQEEVGLRGARTSAFGIEPDYGFAIDV TIAADIPGTPEHKQVTHLGKGTAIKIMDRSVICHPTIVRWLEELAKKHEIPYQLEILLG GGTDAGAIHLTKAGVPTGALSVPARYIHSNTEVVDERDVDATVELMTKALENIHELKI