>tr|I6U7J9|I6U7J9_9EURY NADH oxidase /nitrite reductase OS=Pyrococcus furiosus COM1 GN=PFC_05200 MKVVIVGNGPGGFELAKQLSQTYEVTVIDKEPVPYYSKPMLSHYIAGFIPRNRLFPYSLD WYRKRGIEIRLAEEAKLIDRGRKVVITEKGEVPYDTLVLATGARAREPQIKGKEYLLTLR TIFDADRIKESIENSGEAIIIGGGFIGLELAGNLAEAGYHVKLIHRGAMFLGLDEELSNM IKDMLEETGVKFFLNSELLEANEEGVLTNSGFIEGKVKICAIGIVPNVDLARRSGIHTGR GILIDDNFRTSAKDVYAIGDCAEYSGIIAGTAKAAMEQARVLADILKGEPRRYNFKFRST VFKFGKLQIAIIGNTKGEGKWIEDNTKVFYENGKIIGAVVFNDIRKATKLEKEILDFYS