title: Isolation and expression of the Escherichia coli gene encoding malate dehydrogenase.
abstract: An oligodeoxynucleotide specific for a pentapeptide sequence corresponding to amino acid residues 32 through 36 of Escherichia coli malate dehydrogenase was chemically synthesized and used to identify the mdh gene on plasmid pLC32-38 from the Clarke-Carbon recombinant library. Cells transformed with this plasmid exhibited a 10-fold increase in malate dehydrogenase activity. A 1.2-kilobase PvuII fragment which hybridized with the oligodeoxynucleotide probe was subcloned, and the identity of the mdh structural gene was confirmed by partial nucleotide sequence analysis. The expression of the mdh gene, as measured by both Northern blotting and enzyme assays, was found to vary over a 20-fold range with different culture conditions.
authors.forename: P
authors.initials: P
authors.lastname: Sutherland
authors.forename: L
authors.initials: L
authors.lastname: McAlister-Henn
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D004262:DNA Restriction Enzymes; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D008291:Malate Dehydrogenase / Q000235:genetics* / Q000378:metabolism; D009693:Nucleic Acid Hybridization; D009838:Oligodeoxyribonucleotides / Q000138:chemical synthesis; D010957:Plasmids
chemical_list: D009838:Oligodeoxyribonucleotides; D008291:Malate Dehydrogenase; D004262:DNA Restriction Enzymes