title: Letter: Biotin biosynthesis. 1. The incorporation of specifically tritiated dethiobiotin into biotin.
mesh_terms: D001230:Aspergillus / Q000378:metabolism*; D001234:Aspergillus niger / Q000378:metabolism*; D001710:Biotin / Q000096:biosynthesis*; D007553:Isotope Labeling; D014316:Tritium
chemical_list: D014316:Tritium; D001710:Biotin