Cloning, sequence and mutagenesis of the structural gene of Pseudomonas aeruginosa CysB, which can activate algD transcription
نویسندگان
چکیده
منابع مشابه
Pseudomonas aeruginosa infection in cystic fibrosis: nucleotide sequence and transcriptional regulation of the algD gene.
Pulmonary infection by mucoid, alginate producing, Pseudomonas aeruginosa is a major complication in patients suffering from cystic fibrosis (CF). To analyze the mechanisms leading to the emergence of mucoid P. aeruginosa in CF lungs, control of the algD gene coding for GDPmannose dehydrogenase was studied. Transcriptional activation of algD was shown to be necessary for alginate production. Se...
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Purpose: The aim of this study was cloning the Gba enzyme in pUCBM21 plasmid, and making frame mutation on it and sequencing it. Materials and methods: mRNA was extracted from mouse spleen and glucocerebrosidase cDNA was synthesized and amplified by PCR with specific primers. cDNA was cloned in pUCBM21 and analyzed by restriction enzymes. A fragment of its sequence was deleted using MscI restr...
متن کاملLoss of Pseudomonas aeruginosa PhpA aminopeptidase activity results in increased algD transcription.
Inactivation of Pseudomonas aeruginosa phpA, encoding a putative leucine aminopeptidase, results in increased transcription of algD. The homologous protein in Escherichia coli, PepA, is multifunctional, possessing independent aminopeptidase and DNA-binding activities. Here we provide in vitro evidence that PhpA is an aminopeptidase and show that this activity is the relevant property with regar...
متن کاملHigh osmolarity is a signal for enhanced algD transcription in mucoid and nonmucoid Pseudomonas aeruginosa strains.
Chronic lung infection with mucoid, alginate-producing strains of Pseudomonas aeruginosa is a major cause of mortality in cystic fibrosis (CF) patients. Transcriptional activation of the P. aeruginosa algD gene, which encodes GDPmannose dehydrogenase, is essential for alginate synthesis. Activation of algD is dependent on the product of the algR gene. Sequence homology between the P. aeruginosa...
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ژورنال
عنوان ژورنال: Molecular Microbiology
سال: 1997
ISSN: 0950-382X,1365-2958
DOI: 10.1046/j.1365-2958.1997.4121799.x