>sp|Q8PW87|RIFK_METMA Riboflavin kinase OS=Methanosarcina mazei GN=ribK
MPDIEYLKKLALIGAVNKTVKVSSSEFHKHTGDSSKTAARKLKQLEKERLIERELVPGGQ
LIKMTEKGIEILKNEYVEYSRIFSSEPDTLELEGNVLKGLGEGQYYINIPGYRTQFEEKL
HFIPFPGTLNVQLSENSSALRNRLREMPSVRIDGFNDGERTFGGGNCYPVRVEGIDAAVV
VPDRTHYPSDLIEIIAPVKLRDALKLKDGDRVVTQLKKQGMEGQK