>tr|E3GXH1|E3GXH1_METFV Riboflavin synthase OS=Methanothermus fervidus (strain ATCC 43054 / DSM 2088 / JCM 10308 / V24 S) OX=523846 GN=Mfer_0200 PE=3 SV=1
MKKVGICDTTFARYDMASAAIDEIKKHATNVKIIRYTVPGIKDLPVACKKLIEEEGCDIV
MAFGMPGPTKIDKMCAHEASLGLIQAQLMTNTHILEVFVHEDEEVNPKELKLLAERRARE
HAQNLIKMLFKPKKMIREAGMGKREGKPDVGPL