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Isolation of a Pseudomonas aeruginosa PAOI gene involved in 3-hydroxybutyrate catabolismMarcangione, Luigi. January 1999 (has links)
This work was undertaken with the objective of isolating and characterising the bdh gene of P. aeruginosa PAOI. Isolation of the bdh gene was initially attempted by PCR amplification and then by heterologous complementation of E. coli (LS5218) and S. meliloti (Rm11107) strains unable to catabolise 3-hydroxybutyrate. Three classes of plasmids were isolated. Class I comprised two plasmids, p5218-02 and p5218-07, isolated via complementation of LS5218, which were capable of complementing both LS5218 and Rm11107 for growth on 3-hydroxybutyrate. 3-hydroxybutyrate dehydrogenase (BDH) activity was not detected in an extract of LS5218 (p5218-02). The sole 3.6-kb EcoRI fist was partially sequenced and found to have three putative open reading frames (ORF). ORF 1 is homologous to the fusE gene of E. coli. We hypothesised that p5218-02 encodes an enzyme capable of degrading 3 hydroxybutyrate, but does not encode the bdh gene. Plasmids of class II (p30065) and class III (p30066) were isolated via complementation of Rm11107. Significant BDH activity was detected in an extract of Rm11107 (p30066), but not in Rm11107, leading to the hypothesis that p30066 carries the bdh gene.
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Isolation of a Pseudomonas aeruginosa PAOI gene involved in 3-hydroxybutyrate catabolismMarcangione, Luigi. January 1999 (has links)
No description available.
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