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  • Title: Cloning and characterization of ftsZ and pyrF from the archaeon Thermoplasma acidophilum.
    Author: Yaoi T, Laksanalamai P, Jiemjit A, Kagawa HK, Alton T, Trent JD.
    Journal: Biochem Biophys Res Commun; 2000 Sep 07; 275(3):936-45. PubMed ID: 10973825.
    Abstract:
    To characterize cytoskeletal components of archaea, the ftsZ gene from Thermoplasma acidophilum was cloned and sequenced. In T. acidophilum ftsZ, which is involved in cell division, was found to be in an operon with the pyrF gene, which encodes orotidine-5'-monophosphate decarboxylase (ODC), an essential enzyme in pyrimidine biosynthesis. Both ftsZ and pyrF from T. acidophilum were expressed in Escherichia coli and formed functional proteins. FtsZ expression in wild-type E. coli resulted in the filamentous phenotype characteristic of ftsZ mutants. T. acidophilum pyrF expression in an E. coli mutant lacking pyrF complemented the mutation and rescued the strain. Sequence alignments of ODCs from archaea, bacteria, and eukarya reveal five conserved regions, two of which have homology to 3-hexulose-6-phosphate synthase (HPS), suggesting a common substrate recognition and binding motif.
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