title: Nucleotide sequence analysis of the trimethoprim resistant dihydrofolate reductase encoded by R plasmid R751.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D004926:Escherichia coli / Q000187:drug effects / Q000201:enzymology / Q000235:genetics*; D005796:Genes; D011815:R Factors; D013762:Tetrahydrofolate Dehydrogenase / Q000235:genetics*; D014295:Trimethoprim / Q000494:pharmacology*
chemical_list: D014295:Trimethoprim; D013762:Tetrahydrofolate Dehydrogenase