[Structure of electrochemically reduced adenine nucleotides. Their interaction with inorganic phosphate]

The stable reduced form of adenosine phosphates has probably cyclic or dimeric structure of the type: adenine "head"--phosphate "end". Inorganic phosphate produce a stabilyzing effect on reduced adenosine due to a strong ionic interaction with the amino group. In the case of reduced ADP, inorganic phosphate can incorporate into adenine nucleotide, which oxidation results in the formation of small amounts of ATP. A scheme of possible mechanism of this process is given.