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Transcriptome analysis of a thermophilic and hydrogenogenic carboxydotroph Carboxydothermus pertinax
A thermophilic and hydrogenogenic carboxydotroph, Carboxydothermus pertinax, performs hydrogenogenic CO metabolism in which CODH-II couples with distally encoded ECH. To enhance our knowledge of its hydrogenogenic CO metabolism, we performed whole transcriptome analysis of C. pertinax grown under 10...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Japan
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6557876/ https://www.ncbi.nlm.nih.gov/pubmed/30941583 http://dx.doi.org/10.1007/s00792-019-01091-x |
Sumario: | A thermophilic and hydrogenogenic carboxydotroph, Carboxydothermus pertinax, performs hydrogenogenic CO metabolism in which CODH-II couples with distally encoded ECH. To enhance our knowledge of its hydrogenogenic CO metabolism, we performed whole transcriptome analysis of C. pertinax grown under 100% CO or 100% N(2) using RNA sequencing. Of the 2577 genes, 36 and 64 genes were differentially expressed genes (DEGs) with false discovery rate adjusted P value < 0.05 when grown under 100% CO or 100% N(2), respectively. Most of the DEGs were components of 23 gene clusters, suggesting switch between metabolisms via intensive expression changes in a relatively low number of gene clusters. Of the 9 significantly expressed gene clusters under 100% CO, CODH-II and ECH gene clusters were found. Only the ECH gene cluster was regulated by the CO-responsive transcriptional factor CooA, suggesting that others were separately regulated in the same transcriptional cascade as the ECH gene cluster. Of the 14 significantly expressed gene clusters under 100% N(2), ferrous iron transport gene cluster involved in anaerobic respiration and prophage region were found. Considering that the expression of the temperate phage was strictly repressed under 100% CO, hydrogenogenic CO metabolism might be stable for C. pertinax. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00792-019-01091-x) contains supplementary material, which is available to authorized users. |
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