Search for dissertations about: "sigma factor"
Showing result 1 - 5 of 27 swedish dissertations containing the words sigma factor.
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1. Stress response regulation and protein aggregate inheritance in Caulobacter crescentus
Abstract : Many stress conditions a cell encounters threaten the continuation of basic biological processes ultimately endangering its survival. Heat shock and antibiotic exposure can lead to a sudden surge of protein un- and misfolding, while nutrient starvation directly causes a lack of energy and molecular building blocks. READ MORE
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2. General stress proteins: Novel function and signals for induction of stationary phase genes in E.coli
Abstract : Survival during conditions when nutrients become scarce requires adaptation and expression of genes for maintenance in order for the cell to survive. Among the numerous proteins involved in adaptation and regulation under these conditions, the stationary phase sigma factor, σS, and the Universal stress proteins contribute to survival and bestow the cell with general stress protective functions during growth arrest. READ MORE
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3. All Digital Polar Transmitter Design for Software Defined Radio : Architecture and Low Power Circuit Implementation
Abstract : The evolving wireless communication technology is aiming highdata rate, high mobility, long distance and at the meantime, co-existwith various different standards. This developing trend requires ahighly linear transceiver system and it causes the problem of lowefficiency due to the large crest factor of signals. READ MORE
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4. Macromolecular Matchmaking : Mechanisms and Biology of Bacterial Small RNAs
Abstract : Cells sense the properties of the surrounding environment and convert this information into changes in gene expression. Bacteria are, in contrast to many multi-cellular eukaryotes, remarkable in their ability to cope with rapid environmental changes and to endure harsh and extreme milieus. READ MORE
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5. VanT, a central regulator of quorum sensing signalling in Vibrio anguillarum
Abstract : Many bacteria produce signal molecules that serve in a cell-to-cell communication system termed quorum sensing. This signalling system allows a bacterial population to co-ordinately regulate functions according to their cell number in a defined environment. READ MORE