patulin ( 4-hydroxy-4h-furo [ 3,2-c ] pyran-2 ( 6h ) -one ) , a carcinogenic lactone produced as a major metabolite by several fungi , inhibited the mg++-dependent na+-k+ activated adenosine triphosphatase ( atpase ) activity of mouse brain microsomal fractions with an estimated ic50 of 3.0 x 10 ( -4 ) m .
C0001479
na
C0001473
atpase