to determine if the increased incorporation of [ ( 14 ) c ] riboflavin into renal [ ( 14 ) c ] fmn and [ ( 14 ) c ] fad was an important intermediary step in the aldosterone-induced alterations in urinary na ( + ) and k ( + ) , the riboflavin analogues 7,8-dimethyl-10-formylmethyl isoalloxazine or 7,8-dimethyl-10- ( 2'-hydroxyethyl ) isoalloxazine were given to the animals i.p . to diminish the conversion of riboflavin to fmn by competitively inhibiting the enzyme flavokinase ( ec 2.7.1.26 ) .
C0035527
riboflavin
C0016388
fmn