title: On the topochemistry of dihydrofolate reductase.
mesh_terms: D000818:Animals; D006651:Histocytochemistry; D007422:Intestines / Q000201:enzymology; D007668:Kidney / Q000201:enzymology; D008099:Liver / Q000201:enzymology; D008297:Male; D009132:Muscles / Q000201:enzymology; D051381:Rats; D012867:Skin / Q000201:enzymology; D013053:Spectrophotometry; D013762:Tetrahydrofolate Dehydrogenase / Q000097:blood / Q000378:metabolism*
chemical_list: D013762:Tetrahydrofolate Dehydrogenase