Results 281 to 290 of about 10,473,632 (314)
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Cytology and Morphogenesis of the Prokaryotic Cell
1986Since the early days of ultrastructural studies of bacterial cells it is known that bacteria do not have nuclei as eukaryotic cells. The genome of bacteria is localized in a structure which is known as the nucleoid. Other names used for this structure are chromosome, chromoid, nuclear region, nuclear body, or nucleoplasma (Drlica 1987; Brock 1988). The
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Jamming prokaryotic cell-to-cell communications in a model biofilm
Lab Chip, 2009We report on the physical parameters governing prokaryotic cell-to-cell signaling in a model biofilm. The model biofilm is comprised of bacteria that are genetically engineered to transmit and receive quorum-sensing (QS) signals. The model is formed using arrays of time-shared, holographic optical traps in conjunction with microfluidics to precisely ...
Utkur Mirsaidov +3 more
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Current protein and peptide science, 2005
The cytolysin is a novel, two-peptide lytic toxin produced by some strains of Enterococcus faecalis. It is toxic in animal models of enterococcal infection, and associated with acutely terminal outcome in human infection.
Christopher R. Cox +2 more
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The cytolysin is a novel, two-peptide lytic toxin produced by some strains of Enterococcus faecalis. It is toxic in animal models of enterococcal infection, and associated with acutely terminal outcome in human infection.
Christopher R. Cox +2 more
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Ultrasound-mediated transformation of prokaryotic cells
The Journal of the Acoustical Society of America, 1999Ultrasound-mediated transfection of mammalian cells has been reported in the literature [Kim et al., ‘‘Ultrasound-mediated transfection of mammalian cells,’’ Human Gene Therapy 7, 1339–1346 (July 10, 1996)]. Optimum results were obtained using continuous wave insonification at a carrier frequency of MHz, peak pressures of 319–411 kPa, exposure times of
William R. Jones +2 more
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The photosynthetic membrane: prokaryotic and eukaryotic cells
Endeavour, 1985Abstract Photosynthesis is one of the most important of all biochemical progresses, occuring not only in green plants but in certain algae and bacteria. This article reviews current ideas about the mechanisms of photosynthesis, with special reference to the role of photosynthetic membranes.
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Inhibition of prokaryotic cell growth by HIV1 Vpr
Research in Virology, 1997We have cloned the nef, vif, vpr and vpu genes of HIV1 in the pGEX system to produce auxiliary proteins of HIV1 as N-terminal fusions with glutathione S-transferase (GST). Some GST proteins are difficult to obtain under standard conditions. The synthesis and solubility varied considerably from one protein to another. We investigated the reasons for the
Richard Benarous +4 more
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Biotechnology and applied biochemistry, 1988
The human cytomegalovirus immediate‐early gene region 1 promoter‐enhancer is active in bacteria and in many mammalian cells. Recombinant plasmids containing portions of this DNA can be used to promote the expression of foreign proteins in many cells.
Mg Davis, E. Huang
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The human cytomegalovirus immediate‐early gene region 1 promoter‐enhancer is active in bacteria and in many mammalian cells. Recombinant plasmids containing portions of this DNA can be used to promote the expression of foreign proteins in many cells.
Mg Davis, E. Huang
semanticscholar +1 more source
Surface Extension and the Cell Cycle in Prokaryotes
1979Publisher Summary The chapter describes the approaches that have been made to understand the control of bacterial surface area during the cell cycle. Such investigations have shown that the apparently casual timing of division is a consequence of variation in cell size at division.
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Glycolipids in Prokaryotic Cells
Biochemical Society Transactions, 1977Hussein Mozaffary +2 more
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The Structure of Cells (Prokaryotes, Eukaryotes)
1983The phenomesnon “life” becomes manifest in organisms. Within organisms all those reactions are found which characterize life. Today, many single reactions can be realized experimentally outside the organisms. Usually, they are catalyzed and controlled by enzymes (see Chap. 9). Supramolecular functional units are the organelles.
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