>6FRN_1|Chains A, B, C, D|F420H2 oxidase (FprA)|Methanothermococcus thermolithotrophicus (2186) MKADAVKIADGVYWVGVLDWDIRMYHGYTLNGTTYNAYLVFGDDKVALIDNTYPGTSAQMWGRIKDACEKEGREFKIDVIVQNHVEKDHSGALPEIHKKFPEAPIYCTEVAVEGLVKHFPSLKGAPFKVVKSLESIDLGGKTLTFLEAPLLHWPDSMFTLYAEEGILFSNDAFGQHLCFTQRFDHEIPENILMDANQKFYANLITPLSKLVLKKFKEVIELGLLEKIKMIAPSHGQIWTDPMKVIGAYQDFATGKCKDKVTIVYDTMHGSTQKMAHAFAEGIMSEGVDVKMYFLHNDERSEIVKDILDSKAFLLGAPTIYDEPFPSVGDLIYYLKGLKFNRTGLKRLALAFGSMGGNGGGTKVLAEKLKECGFEVLDEYELYYVPTEDELEKCYNMGKRLAVKVKEMKTE