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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Li, Xin | - |
dc.contributor.author | Nenninger, Anja | - |
dc.contributor.author | Muro-Pastor, Alicia M. | - |
dc.contributor.author | Stensjö, Karin | - |
dc.date.accessioned | 2015-07-09T08:37:56Z | - |
dc.date.available | 2015-07-09T08:37:56Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | FEMS Microbiology Letters, 36(2):fnv017 (2015) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/117751 | - |
dc.description.abstract | In cyanobacteria, DNA-binding proteins from starved cells (Dps) play an important role in the cellular response to oxidative and nutritional stresses. In this study, we have characterized the cell-type specificity and the promoter regions of two orthologous dps genes, Npun_R5799 in Nostoc punctiforme and alr3808 in Anabaena sp. PCC 7120. A transcriptional start site (TSS), identical in location to the previously identified proximal TSS of alr3808, was identified for Npun_R5799 under both combined nitrogen supplemented and N2-fixing growth conditions. However, only alr3808 was also transcribed from a second distal TSS. Sequence homologies suggest that the promoter region containing the distal TSS is not conserved upstream of orthologous genes among heterocyst-forming cyanobacteria. The analysis of promoter GFP-reporter strains showed a different role in governing cell-type specificity between the proximal and distal promoter of alr3808. We here confirmed the heterocyst specificity of the distal promoter of alr3808 and described a very early induction of its expression during proheterocyst differentiation. In contrast, the complete promoters of both genes were active in all cells. Even though Npun_R5799 and alr3808 are orthologs, the regulation of their respective expression differs, indicating distinctions in the function of these cyanobacterial Dps proteins depending on the strain and cell type. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Oxford University Press | es_ES |
dc.relation.isversionof | Postprint | es_ES |
dc.rights | openAccess | en_EN |
dc.subject | Cyanobacteria | es_ES |
dc.subject | Nostoc | es_ES |
dc.subject | Anabaena | es_ES |
dc.subject | Heterocyst differentiation | es_ES |
dc.subject | Ferritin-19 like protein | es_ES |
dc.subject | ROS scavenging | es_ES |
dc.subject | DIF motif | es_ES |
dc.title | Differential transcriptional regulation of orthologous dps genes from two closely related heterocyst-forming cyanobacteria | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1093/femsle/fnv017 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1093/femsle/fnv017. | es_ES |
dc.embargo.terms | 2016-02-04 | es_ES |
dc.relation.csic | Sí | es_ES |
dc.identifier.pmid | 25663155 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
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femsle.fnv017.full.pdf | 1,07 MB | Adobe PDF | Visualizar/Abrir |
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