title: Ribonucleotide reductase of Pithomyces chartarum: requirement for B12 coenzyme.
mesh_terms: D003038:Cobamides / Q000378:metabolism*; D006160:Guanosine Triphosphate / Q000378:metabolism; D003904:Mitosporic Fungi / Q000201:enzymology*; D012264:Ribonucleotide Reductases / Q000378:metabolism*
chemical_list: D003038:Cobamides; D006160:Guanosine Triphosphate; D012264:Ribonucleotide Reductases