Project description:Investigation of whole genome gene expression level changes in a Gluconacetobacter xylinus NBRC 3288 delta-fnrG mutant, compared to the wild-type strain.
Project description:The ability of Cupriavidus oxalaticus T2 to simultaneously remove nitrogen and phenol has been confirmed. To explore the metabolic characteristics and adaptive mechanism of Cupriavidus oxalaticus T2 during the simultaneous removal of phenol and nitrogen process, the differences in proteomic profile after supplement with phenol and ammonia for 6 h (lag phase) and 24 h (log phase) were evaluated. The results revealed that a new potential phenol para-degradation pathway appeared in T2. Phenol induces changes in nitrogen metabolism resulting in increased denitrification and decreased synthesis of glutamate from ammonia at 6 h. In addition, phenol exposure enhanced the expression of cytochrome oxidases with high oxygen affinity and increased ATP synthesis. The increase of chemotaxis and flagellar assembly was conducive to the uptake and utilization of phenol. The synthesis of lipoic acid and biotin was promoted to resistance phenol toxicity. Moreover, phenol triggered cellular stress response thereby leading to th
Project description:These data belong to a metabolic engineering project that introduces the reductive glycine pathway for formate assimilation in Cupriavidus necator. As part of this project we performed short-term evolution of the bacterium Cupriavidus necator H16 to grow on glycine as sole carbon and energy source. Some mutations in a putiative glycine transporting systems facilitated growth, and we performed transcriptomics on the evolved strain growing on glycine. Analysis of these transcriptomic data lead us to the discovery of a glycine oxidase (DadA6), which we experimentally demonstrated to play a key role in the glycine assimilation pathay in C. necator.
