>sp|O26932|RIBL_METTH FAD synthase OS=Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) OX=187420 GN=ribL PE=3 SV=1 MKTVMATGTFDIIHPGHGFFLEEARKLGGEDARLVVVLARDSTVRARKRTPIVGEKQRLE VVRMLKPVDEAYLGSETDMFEIVHRIKPDIIAIGPDQKFDVDELRDELRRRGLGCEVRRI EKYRDAELDSTCKIIKRIRSMEFDEDSLKNC