enhancement was produced by folate compounds and p-amino-benzoylglutamate , small monovalent ( e.g. , cl- , acetate , and lactate ) and divalent ( e.g. , phosphate and succinate ) anions , a few nucleotides ( e.g. , amp ) , and thiamine pyrophosphate , while little or no effect was associated with trivalent anions ( e.g. , citrate ) , most nucleotides , and large organic anions ( e.g. , bromosulfophthalein , nad , and nadp ) .
C0031603
phosphate
C0003075
anions