Abstract:
:Bacterial small RNAs (sRNAs) and two-component systems (TCSs) were two vital regulatory mechanisms employed by microorganisms to respond to environmental changes and stresses. As a promising "autotrophic cell factory", photosynthetic cyanobacteria have attracted a lot of attention these years. Although most studies focused on studying the roles of sRNAs or TCS regulators in stress response in photosynthetic cyanobacteria, limited work has elucidated their potential crosstalk. Our previous work has identified a negative sRNA regulator CoaR and a positive response regulator Slr1037 both related to 1-butanol stress regulation in Synechocystis sp. PCC6803. In this work, the potential crosstalk between CoaR and Slr1307 (i.e., the coregulated genes mediated by CoaR and Slr1037) was identified and validated through quantitative proteomics and quantitative real-time PCR (qRT-PCR), respectively. The results showed that the sensitive phenotype to 1-butanol of Δslr1037 could be rescued by suppressing coaR in Δslr1037, probably due to the fact that some target genes of Slr1037 could be reactivated by repression of CoaR. Twenty-eight coregulated proteins mediated by CoaR and Slr1037 were found through quantitative proteomics, and 10 of the annotated proteins were validated via qRT-PCR. This study proved the existence of crosstalk between sRNAs and response regulators and provided new insights into the coregulation of biofuel resistance in cyanobacteria.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Sun T,Chen L,Zhang Wdoi
10.1021/acs.jproteome.7b00243subject
Has Abstractpub_date
2017-08-04 00:00:00pages
2954-2963issue
8eissn
1535-3893issn
1535-3907journal_volume
16pub_type
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journal_title:Journal of proteome research
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journal_title:Journal of proteome research
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journal_title:Journal of proteome research
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journal_title:Journal of proteome research
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doi:10.1021/acs.jproteome.6b00738
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journal_title:Journal of proteome research
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更新日期:2014-09-05 00:00:00
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journal_title:Journal of proteome research
pub_type: 杂志文章,评审
doi:10.1021/acs.jproteome.9b00228
更新日期:2019-06-07 00:00:00
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journal_title:Journal of proteome research
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更新日期:2014-02-07 00:00:00
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journal_title:Journal of proteome research
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journal_title:Journal of proteome research
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