>tr|A0A328Q0G5|A0A328Q0G5_9EURY Riboflavin kinase OS=Methanosphaera stadtmanae GN=ribK MLSFEGKVSSGLQKAGQFMEKEVYKKQYLDKLGFIPYHGTLNIKLSNNITLNLDNLHDKL KRIHGNGSFGDVLFLEAYLSTIDEKITKKGAILFPVKTVYDTDTLEYVSSEKLRDTLNLK DGDKVIIKIEK