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The recently finished genome sequence of Ralstonia eutropha H16 harbors nine genes that are thought to encode functions for intracellular depolymerization (mobilization) of storage poly(3-hydroxybutyrate) (PHB). Based on amino acid similarities, the gene products belong to four classes (PhaZa1 to PhaZa5, PhaZb, PhaZc, and PhaZd1/PhaZd2). However, convincing(More)
An ectopic tonsil is defined as tonsillar tissue that develops in areas outside of the four major tonsil groups: the palatine, lingual, pharyngeal, and tubal tonsils. The occurrence of tonsillar tissue in the oral cavity in ectopic locations, its prevalence, and its developmental mechanisms that belong to its formation remain unclear. In this report, we(More)
Ralstonia pickettii T1 secretes a poly(3-hydroxybutyrate) (PHB) depolymerase (PhaZ) and a 3-hydroxybutyrate (3HB)-oligomer hydrolase, and extracellularly degrades PHB to produce 3HB. However, it is not clear how the expression of phaZ is regulated. In this study, the mechanism by which phaZ expression is controlled in R. pickettii T1 was examined using a(More)
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