title: Diadenosine 5',5"'-P1,P4-tetraphosphate (Ap4A): its role in cellular metabolism.
mesh_terms: D017766:Acid Anhydride Hydrolases; D000227:Adenine Nucleotides / Q000378:metabolism / Q000502:physiology*; D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism; D000818:Animals; D001792:Blood Platelets / Q000378:metabolism; D002453:Cell Cycle; D055598:Chemical Phenomena; D002621:Chemistry; D002942:Circular Dichroism; D004247:DNA / Q000096:biosynthesis; D004257:DNA Polymerase II / Q000378:metabolism; D015226:Dinucleoside Phosphates; D004734:Energy Metabolism; D006801:Humans; D010744:Phosphoric Monoester Hydrolases / Q000378:metabolism; D013539:Simian virus 40 / Q000235:genetics; D013698:Templates, Genetic; D015032:Zinc / Q000502:physiology
chemical_list: D000227:Adenine Nucleotides; D015226:Dinucleoside Phosphates; C020733:diadenosine tetraphosphate; D004247:DNA; D004257:DNA Polymerase II; D010744:Phosphoric Monoester Hydrolases; D017766:Acid Anhydride Hydrolases; C020023:bis(5'-nucleosyl)tetraphosphatase (asymmetrical); D000604:Amino Acyl-tRNA Synthetases; D015032:Zinc