>tr|A0A832W8Y7|A0A832W8Y7_9EURY Riboflavin kinase OS=Methanosarcina acetivorans GN=ribK MRLKIKAIWVPTVPDIEYLKKLALRGAVNKTVKVSSSEFHKHTGDSSKTAARKLKQMEEE RLIERKIVPGGQLIKMTEKGIEILKNEYIEYSRIFSSEPDVLELEGNVLKGLGEGQYYIN IPGYRNQFEEKLNFVPFPGTLNVQLSESSSALRNRLKEMPAVRIDGFNDGERTFGGGNCY PIKVEGIEAAVVVPDRTHYPADLIEIIAPVKLRDALKLKDGDRIVTRVKKQGMEGQK