title: Altered purine permease activity in a purine-analogue-resistant mutant of Saccharomyces cerevisiae.
mesh_terms: D004351:Drug Resistance; D026901:Membrane Transport Proteins / Q000378:metabolism*; D009154:Mutation; D011687:Purines; D011720:Pyrazoles / Q000494:pharmacology; D011743:Pyrimidines / Q000494:pharmacology; D012441:Saccharomyces cerevisiae / Q000201:enzymology*
chemical_list: D026901:Membrane Transport Proteins; D011687:Purines; D011720:Pyrazoles; D011743:Pyrimidines