title: Isolation and detection of urease genes in Ureaplasma urealyticum.
abstract: Urease from ureaplasmas was purified by immunoaffinity chromatography, and the N-terminal amino acid sequence was determined for two of the three subunits. These sequences were used to design primers for a polymerase chain reaction (PCR) that amplified most of the gene coding for one of the subunits. By using a novel "PCR walking" technique, we synthesized almost the complete locus on two overlapping PCR products. We present here a partial nucleotide sequence of the urease locus from Ureaplasma urealyticum (serotype 8), which agrees with our N-terminal amino acid data but differs slightly from the sequence previously reported (A. Blanchard, Mol. Microbiol. 4:669-676, 1990). Also described are PCR primers, intended for diagnostic use, that amplify a sequence from all Ureaplasma strains tested but not from any other mycoplasmas or urease-positive bacteria.
authors.affiliation: Department of Biochemistry and Microbiology, University of St. Andrews, Fife, Scotland.
authors.forename: J J
authors.initials: JJ
authors.lastname: Willoughby
authors.forename: W C
authors.initials: WC
authors.lastname: Russell
authors.forename: D
authors.initials: D
authors.lastname: Thirkell
authors.forename: M G
authors.initials: MG
authors.lastname: Burdon
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D004269:DNA, Bacterial / Q000235:genetics; D005798:Genes, Bacterial; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D013045:Species Specificity; D014509:Ureaplasma / Q000201:enzymology / Q000235:genetics*; D014510:Urease / Q000235:genetics*
chemical_list: D004269:DNA, Bacterial; D014510:Urease