monosubstituted adenosine 5'-triphosphate ( atp ) derivatives with a substituent of up to four atoms at any of eight positions in the adenosine moiety , or with an isosteric group replacement at o5 ' or in the triphosphate moiety , have been evaluated kinetically as substrates and inhibitors of liver ( i ) , kidney ( ii ) , and novikoff hepatoma ( t ) variants of rat methionine adenosyltransferase .
C0001480
adenosine 5
C0001443
adenosine