title: Isolation and characterization of 6-hydroxymethylpterin as a Crithidia growth-promoting factor from spinach chloroplasts.
mesh_terms: D001681:Biological Assay; D002736:Chloroplasts / Q000032:analysis*; D003421:Crithidia / Q000187:drug effects*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D010944:Plants / Q000032:analysis*; D011622:Pterins / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D011622:Pterins; C013044:6-hydroxymethylpterin