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Bacterial copper‐ and zinc‐cofactored superoxide dismutase contributes to the pathogenesis of systemic salmonellosis
Copper/zinc‐cofactored superoxide dismutase ([Cu,Zn]‐SOD) has been found in the periplasm of many bacterial species but its biological function is unknown. Here we report the cloning andExpand
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The role of pneumolysin and autolysin in the pathology of pneumonia and septicemia in mice infected with a type 2 pneumococcus.
Mice were infected intranasally with a serotype 2 pneumococcus, a pneumolysin-negative derivative (PLN-A), or an autolysin-negative derivative (AL-2). Numbers of wild type pneumococci were seen inExpand
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A relativistic model of the radio jets in NGC 315
We apply our intrinsically symmetrical, decelerating relativistic jet model to deep VLA imaging of the inner ±70arcsec of the giant low-luminosity radio galaxy NGC315. An optimized model accuratelyExpand
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A relativistic model of the radio jets in 3C296
We present new, deep 8.5-GHz VLA observations of the nearby, low-luminosity radio galaxy 3C 296 at resolutions from 0.25 to 5.5 arcsec. These show the intensity and polarization structures of theExpand
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Relativistic models of two low‐luminosity radio jets: B2 0326+39and B2 1553+24
We apply the intrinsically symmetrical, decelerating relativistic jet model developed by Laing & Bridle for 3C 31 to deep, full-synthesis 8.4-GHz VLA imaging of the two low-luminosity radio galaxiesExpand
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The HST survey of the B2 sample of radio galaxies: Detection of two optical jets
We present HST observations of previously undetected optical jets in the low-luminosity radio galaxies B2 0755+37 and B2 1553+24. We show that there is accurate spatial coincidence between opticalExpand
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Multifrequency observations of the jets in the radio galaxy NGC 315
We present images of the jets in the nearby radio galaxy NGC 315 made with the Very Large Array at five frequencies between 1.365 and 5 GHz with resolutions between 1.5 and 45 arcsec. Within 15Expand
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Streptococcus pneumoniae produces a second haemolysin that is distinct from pneumolysin.
Pneumococci are described as alpha-haemolytic but under certain circumstances they produce zones of beta-haemolysis on blood-containing medium. This observation was investigated using wild typeExpand
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Artefactual cleavage of E coli H-NS by OmpT.
In the bacterium Escherichia coli, H-NS-(H1, H1a) is a heat-stable protein with a molecular mass of 15.5 kDa involved in nucleoid organisation and gene regulation linked to certain signalExpand
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Electrotransformation of Streptococcus pneumoniae
Conditions of electroporation to transform encapsulated strains of Streptococcus pneumoniae with plasmid DNA have been defined. For a heavily encapsulated strain, an electroporation solution ofExpand
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