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Regulation of the phototrophic iron oxidation (pio) genes in Rhodopseudomonas palustris TIE-1 is mediated by the global regulator, FixK.
Bose A, Newman DK. Bose A, et al. Mol Microbiol. 2011 Jan;79(1):63-75. doi: 10.1111/j.1365-2958.2010.07430.x. Epub 2010 Oct 28. Mol Microbiol. 2011. PMID: 21166894 Free PMC article.
The presence of two canonical FixK boxes upstream of the identified pioABC transcription start site implicated FixK as a likely regulator. ...This study shows that FixK regulates key iron metabolism genes in an α-proteobacterium, pointing to a departure from the can …
The presence of two canonical FixK boxes upstream of the identified pioABC transcription start site implicated FixK as a likely regul …
Physiology and posttranscriptional regulation of methanol:coenzyme M methyltransferase isozymes in Methanosarcina acetivorans C2A.
Opulencia RB, Bose A, Metcalf WW. Opulencia RB, et al. Among authors: bose a. J Bacteriol. 2009 Nov;191(22):6928-35. doi: 10.1128/JB.00947-09. Epub 2009 Sep 18. J Bacteriol. 2009. PMID: 19767431 Free PMC article.
Methanosarcina species possess three operons (mtaCB1, mtaCB2, and mtaCB3) encoding methanol-specific methyltransferase 1 (MT1) isozymes and two genes (mtaA1 and mtaA2) with the potential to encode a methanol-specific methyltransferase 2 (MT2). ...
Methanosarcina species possess three operons (mtaCB1, mtaCB2, and mtaCB3) encoding methanol-specific methyltransferase 1 (MT1) isozymes and …
Regulation of putative methyl-sulphide methyltransferases in Methanosarcina acetivorans C2A.
Bose A, Kulkarni G, Metcalf WW. Bose A, et al. Mol Microbiol. 2009 Oct;74(1):227-238. doi: 10.1111/j.1365-2958.2009.06864.x. Epub 2009 Sep 2. Mol Microbiol. 2009. PMID: 19732345
The regulation of the Methanosarcina acetivorans mtsD, mtsF and mtsH genes, which encode putative corrinoid/methyltransferase isozymes involved in methylsulphide metabolism, was examined by a variety of methods, suggesting that their expression is regulated at both the tra …
The regulation of the Methanosarcina acetivorans mtsD, mtsF and mtsH genes, which encode putative corrinoid/methyltransferase isozymes invol …
Genetic analysis of the methanol- and methylamine-specific methyltransferase 2 genes of Methanosarcina acetivorans C2A.
Bose A, Pritchett MA, Metcalf WW. Bose A, et al. J Bacteriol. 2008 Jun;190(11):4017-26. doi: 10.1128/JB.00117-08. Epub 2008 Mar 28. J Bacteriol. 2008. PMID: 18375552 Free PMC article.
However, the mtaA2 mutant had a reduced rate of methane production from methanol. Surprisingly, deletion of mtaA1 in combination with deletions of the genes encoding three methanol-specific MT1 isozymes led to lack of growth on acetate, suggesting that MT1 and MT2 enzymes …
However, the mtaA2 mutant had a reduced rate of methane production from methanol. Surprisingly, deletion of mtaA1 in combination with …
Methanol-dependent gene expression demonstrates that methyl-coenzyme M reductase is essential in Methanosarcina acetivorans C2A and allows isolation of mutants with defects in regulation of the methanol utilization pathway.
Rother M, Boccazzi P, Bose A, Pritchett MA, Metcalf WW. Rother M, et al. Among authors: bose a. J Bacteriol. 2005 Aug;187(16):5552-9. doi: 10.1128/JB.187.16.5552-5559.2005. J Bacteriol. 2005. PMID: 16077099 Free PMC article.
A common step in each of these pathways is the reduction of methyl-coenzyme M (CoM) to methane catalyzed by methyl-CoM reductase (MCR). ...To validate this prediction, a system for conditional gene inactivation was developed. A heterologous copy of the mcrBDC
A common step in each of these pathways is the reduction of methyl-coenzyme M (CoM) to methane catalyzed by methyl-CoM reductase (MCR
Differential regulation of the three methanol methyltransferase isozymes in Methanosarcina acetivorans C2A.
Bose A, Pritchett MA, Rother M, Metcalf WW. Bose A, et al. J Bacteriol. 2006 Oct;188(20):7274-83. doi: 10.1128/JB.00535-06. J Bacteriol. 2006. PMID: 17015666 Free PMC article.
Genetic analysis of the three methanol-specific methyltransferase 1 operons (mtaCB1, mtaCB2, and mtaCB3) in Methanosarcina acetivorans led to the suggestion that each of them has a discrete function during growth on methanol, which might be reflected in differential gene r …
Genetic analysis of the three methanol-specific methyltransferase 1 operons (mtaCB1, mtaCB2, and mtaCB3) in Methanosarcina acetivorans led t …
An insoluble iron complex coated cathode enhances direct electron uptake by Rhodopseudomonas palustris TIE-1.
Rengasamy K, Ranaivoarisoa T, Singh R, Bose A. Rengasamy K, et al. Among authors: bose a. Bioelectrochemistry. 2018 Aug;122:164-173. doi: 10.1016/j.bioelechem.2018.03.015. Epub 2018 Apr 5. Bioelectrochemistry. 2018. PMID: 29655035
Microbial electrosynthesis (MES) is a promising bioelectrochemical approach to produce biochemicals. A previous study showed that Rhodopseudomonas palustris TIE-1 can directly use poised electrodes as electron donors for photoautotrophic growth at cathodic potential …
Microbial electrosynthesis (MES) is a promising bioelectrochemical approach to produce biochemicals. A previous study showed t …
Geomicrobiological linkages between short-chain alkane consumption and sulfate reduction rates in seep sediments.
Bose A, Rogers DR, Adams MM, Joye SB, Girguis PR. Bose A, et al. Front Microbiol. 2013 Dec 12;4:386. doi: 10.3389/fmicb.2013.00386. eCollection 2013. Front Microbiol. 2013. PMID: 24376442 Free PMC article.
The concurrent depletion in the δ(13)C of dissolved inorganic carbon (DIC) implies a transfer of carbon from the alkane to the DIC pool (-3.5 and -6.7‰ for C3 and C4 incubations, respectively). ...
The concurrent depletion in the δ(13)C of dissolved inorganic carbon (DIC) implies a transfer of carbon from the alkane to the DIC po …
Phototrophic extracellular electron uptake is linked to carbon dioxide fixation in the bacterium Rhodopseudomonas palustris.
Guzman MS, Rengasamy K, Binkley MM, Jones C, Ranaivoarisoa TO, Singh R, Fike DA, Meacham JM, Bose A. Guzman MS, et al. Among authors: bose a. Nat Commun. 2019 Mar 22;10(1):1355. doi: 10.1038/s41467-019-09377-6. Nat Commun. 2019. PMID: 30902976 Free PMC article.
Cathodic electron flow is also correlated with a highly reducing intracellular redox environment. We show that reducing equivalents are used for carbon dioxide (CO(2)) fixation, which is the primary electron sink. Deletion of the genes encoding ruBisCO (the CO(2)-fixing en …
Cathodic electron flow is also correlated with a highly reducing intracellular redox environment. We show that reducing equivalents a …
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