>1XFO_1|Chains A, B, C, D|Frv operon protein FrvX|Pyrococcus horikoshii (53953) RGSHMEVRNMVDYELLKKVVEAPGVSGYEFLGIRDVVIEEIKDYVDEVKVDKLGNVIAHKKGEGPKVMIAAHMDQIGLMVTHIEKNGFLRVAPIGGVDPKTLIAQRFKVWIDKGKFIYGVGASVPPHIQKPEDRKKAPDWDQIFIDIGAESKEEAEDMGVKIGTVITWDGRLERLGKHRFVSIAFDDRIAVYTILEVAKQLKDAKADVYFVATVQEEVGLRGARTSAFGIEPDYGFAIDVTIAADIPGTPEHKQVTHLGKGTAIKIMDRSVICHPTIVRWLEELAKKHEIPYQLEILLGGGTDAGAIHLTKAGVPTGALSVPARYIHSNTEVVDERDVDATVELMTKALENIHELKI