Pfizer Handbook of Microbial Metabolites 



544 



1039 Guanosine-3'-phosphate (Guanylic Acid), C10H14O8N5P, colorless 

 crystals, [ajo -7.5° to -13.5° (in water). 



H.N 





(OH)2P— O 

 O 



OH 



Yeast 



The 5'-di- and triphosphates also have been isolated 

 from microorganisms. 



Walter Jones and M. E. Perkins, /. Biol. Chem. 62 557 

 (1925). 



1040 Adenosine-5'-triphosphate (ATP), CioHigOia N5P3. 



OH OH OH 



I I I 



0=P— O— P— O— P— OCH > 



I il II " 



OH O O 



OH OH 



Yeasts, molds, bacteria, etc. (widely distributed) 



Th. Wagner-Jauregg, Z. physiol. Chem. 238 129 (1936). 

 (Isolation) 



G. A. LePage and W. W. Umbreit, J. Biol. Chem. 148 255 

 (1943). 



D. A. Kita and W. H. Peterson, ibid. 203 861 (1953). 



A. Endo, Ann. Report Takamine Lab. 11 45 (1959). 



