EntityQ407280· pop 46· linked from 6,855 articlescofactorSign in to savea chemical compound or metallic ion that is required for a protein's biological activity to happenConnectionsenzymeEntityelectronEntityriboflavinEntitythiamine(1+) ionEntityfolic acidEntityvitamin B12Entitynicotinamide adenine dinucleotideEntityvitamin B3EntitymethylEntityubidecarenoneEntityoxidoreductaseEntityAnnual Review of BiochemistryEntityironEntityhydrogenEntityoxygenEntitycopperEntitybacteriaEntitymetalEntitycalciumEntityzincEntityCategoriesCofactorsEnzymes