title: The absence of deoxyriboaldolase activity in a thymineless mutant of Escherichia coli strain 15: a possible explanation for the low thymine requirement of some thymineless strains.
mesh_terms: D000446:Aldehyde-Lyases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology*; D005964:Glucosyltransferases / Q000378:metabolism; D008967:Molecular Biology; D009154:Mutation; D009705:Nucleosides / Q000378:metabolism; D010429:Pentoses / Q000378:metabolism; D013941:Thymine / Q000378:metabolism*
chemical_list: D009705:Nucleosides; D010429:Pentoses; D005964:Glucosyltransferases; D000446:Aldehyde-Lyases; D013941:Thymine