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https://www.selleckchem.com/products/doxycycline.html Given the current need for enzymatic toolkits dedicated to the transformation of renewable carbon sources, the observed genomic diversity among Polyporales strengthens the relevance of mining Polyporales biodiversity to understand the molecular mechanisms of wood decay.The methanol-derived methanogenetic pathway contributes to bulk methane production in cold regions, but the cold adaptation mechanisms are obscure. This work investigated the mechanisms using a psychrophilic methylotrophic methanogen Methanolobus psychrophilus R15. R15 possesses two mtaCB operon paralogues-encoding methanolcorrinoid methyltransferase that is key to methanol-based methanogenesis. Molecular combined methanogenic assays determined that MtaC1 is important in methanogenesis at the optimal temperature of 18°C, but MtaC2 can be a cold-adaptive paralogue by highly upregulated at 8°C. The 5'P-seq and 5'RACE all assayed that processing occurred at the 5' untranslated region (5'-UTR) of mtaC2; reporter genes detected higher protein expression, and RNA half-life experiments assayed prolonged lifespan of the processed transcript. Therefore, mtaC2 5'-UTR processing to move the bulged structure elevated both the translation efficiency and transcript stability. 5'P-seq, quantitative RT-PCR and northern blot all identified enhanced mtaC2 5'-UTR processing at 8°C, which could contribute to the upregulation of mtaC2 at cold. The R15 cell extract contains an endoribonuclease cleaving an identified 10 nt-processing motif and the native mtaC2 5'-UTR particularly folded at 8°C. Therefore, this study revealed a 5'-UTR processing mediated post-transcriptional regulation mechanism controlling the cold-adaptive methanol-supported methanogenetic pathway, which may be used by other methylotrophic methanogens.Increasing soil organic carbon (SOC) stocks is a promising way to mitigate the increase in atmospheric CO2 concentration. Based on a simple ratio between

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