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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Development of gene expression signatures in methylotrophic grown Bacillus methanolicus

ABSTRACT: A total gene expression approach was applied to study the methylotrophic nature of B. methanolicus by comparing the gene expression in bacteria grown methylotropic compared to non-methylotrophic. Genes of interest with different gene expression were quantified in the same RNA samples by real-time PCR, confirming the results found in the microarray experiment. Genes of special interest that are expressed higher when grown methylotrophic, were the RuMP pathway genes located on the pBM19. Bacillus methanolicus was grown in minimal media with either methanol or mannitol as carbon source. The experiment was preformed in triplicate, with bacterial cultures grown on 3 different days.

ORGANISM(S): Bacillus methanolicus

SUBMITTER: Tonje Heggeset

PROVIDER: E-GEOD-35298 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Genome sequence of thermotolerant Bacillus methanolicus: features and regulation related to methylotrophy and production of L-lysine and L-glutamate from methanol.

Heggeset Tonje M B TM Krog Anne A Balzer Simone S Wentzel Alexander A Ellingsen Trond E TE Brautaset Trygve T

Applied and environmental microbiology 20120518 15

Bacillus methanolicus can utilize methanol as its sole carbon and energy source, and the scientific interest in this thermotolerant bacterium has focused largely on exploring its potential as a biocatalyst for the conversion of methanol into L-lysine and L-glutamate. We present here the genome sequences of the important B. methanolicus model strain MGA3 (ATCC 53907) and the alternative wild-type strain PB1 (NCIMB13113). The physiological diversity of these two strains was demonstrated by a compa ...[more]

PMID: 22610424

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Development of gene expression signatures in methylotrophic grown Bacillus methanolicus

Project description:A total gene expression approach was applied to study the methylotrophic nature of B. methanolicus by comparing the gene expression in bacteria grown methylotropic compared to non-methylotrophic. Genes of interest with different gene expression were quantified in the same RNA samples by real-time PCR, confirming the results found in the microarray experiment. Genes of special interest that are expressed higher when grown methylotrophic, were the RuMP pathway genes located on the pBM19.

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Project description:To identify molecular effects of the antineoplastic agent PKC412 (Midostaurin), we applied gene expression profiling in zebrafish using whole genome microarrays. Zebrafish eleuthero-embryos were exposed for 6 dpf to nominal levels of 2 μg/L and 40 μg/L PKC412. Among the 259 and 511 altered transcripts at both concentrations, respectively, the expressions of genes involved in the circadian rhythm were of interest. Alteration of swimming behaviour was not noted. Pathways of interest affected by PKC412 were angiogenesis, apoptosis, DNA damage response and response to oxidative stress. Angiogenesis was not altered by PKC412 treatment at both concentrations. Apoptosis occurred in olfactory placodes of embryos exposed to 40 μg/L, and DNA damage was induced at both PKC412 concentrations. However, there were no significant effects on reactive oxygen species formation. This study leads to the conclusion that PKC412-induced alterations of gene transcripts are partly paralleled by physiological effects at high, but not at low PKC412 concentrations expected to be of environmental relevance. Gene expression in zebrafish eleuthero-embryos was measured after exposure for 6dpf to 2 ug/L and 40 ug/L PKC412 or to the respective controls. A total of 12 arrays (Agilent 4 × 44 K Zebrafish microarray) were used, including four for the water control group, four for the solvent control group, four for the 2 μg/L and four for the 40 μg/L PKC412 dose group.

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