adenosine triphosphate atp molecule. functions as neurotransmitter, rna building block, energy transfer molecule, etc 3d.

abstract adenosin adenosine adenylic adp atomic atoms atp atpase chemical chemistry coenzyme composition compound cyclic diphosphate geometric model molecular molecule monophosphate neurotransmitter nucleoside nucleotide organic phosphate phosphoanhydride phosporylation purine purinergic purinoreceptor receptor rendering ribofuranose ribose rna science scientific supplement triphosphate vector