Bacteriol . Jean - Michel Panoff and C . Peter Wolk Steven H . Schwartz , Todd A . Black , Karin Jäger , sp . Strain PCC 7120 Anabaena Gene in Regulation
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Regulation of an osmoticum-responsive gene in Anabaena sp. strain PCC 7120.
Salt-induced genes in the cyanobacterium Anabaena sp. strain PCC 7120 were identified by use of a Tn5-based transposon bearing luxAB as a reporter. The genomic sequence adjacent to one site of insertion of the transposon was identical in part to the sequence of the lti2 gene, which was previously identified in a differential screen for cold-induced transcripts in Anabaena variabilis. The lti2-l...
متن کاملNovel DNA-binding proteins in the cyanobacterium Anabaena sp. strain PCC 7120.
As an approach towards elucidation of the biochemical regulation of the progression of heterocyst differentiation in Anabaena sp. strain PCC 7120, we have identified proteins that bind to a 150-bp sequence upstream from hepC, a gene that plays a role in the synthesis of heterocyst envelope polysaccharide. Such proteins were purified in four steps from extracts of vegetative cells of Anabaena sp...
متن کاملAnabaena sp. strain PCC 7120 responds to nitrogen deprivation with a cascade-like sequence of transcriptional activations.
Anabaena sp. strain PCC 7120 adapts to deprivation of fixed nitrogen by undergoing physiological and genetic changes that include formation of N2-fixing heterocysts. Whether or not certain of the genes involved are interdependently expressed has been studied.
متن کاملExpression of Shewanella oneidensis MR-1 [FeFe]-hydrogenase genes in Anabaena sp. strain PCC 7120.
H(2) generated from renewable resources holds promise as an environmentally innocuous fuel that releases only energy and water when consumed. In biotechnology, photoautotrophic oxygenic diazotrophs could produce H(2) from water and sunlight using the cells' endogenous nitrogenases. However, nitrogenases have low turnover numbers and require large amounts of ATP. [FeFe]-hydrogenases found in oth...
متن کاملMutations in genes patA and patL of Anabaena sp. strain PCC 7120 result in similar phenotypes, and the proteins encoded by those genes may interact.
PatA resembles a response regulator protein with a defective DNA-binding domain, and PatL (All3305) is a pentapeptide repeat protein. A yeast two-hybrid library identified PatL as a protein with which PatA may interact. Heterocysts of patA and patL Anabaena sp. form nearly exclusively terminally in long filaments, further linking the genes.
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تاریخ انتشار 1998