Existence and Reactivity of Sulfdryl Groups in Pyocin R&lt;xref ref-type="fn" rid="fn1"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/xref&gt;

Yui, Chie; Ishii, Shin‐ichi; Egami, Fujio

doi:10.1093/oxfordjournals.jbchem.a128988

The Journal of Biochemistry

1969

DOI: 10.1093/oxfordjournals.jbchem.a128988

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Existence and Reactivity of Sulfdryl Groups in Pyocin R<xref ref-type="fn" rid="fn1"><sup>*</sup></xref>

Chie Yui

Shin‐ichi Ishii

Fujio Egami

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Studies on the Pyocins of Pseudomonas aeruginosa: Morphology and Mode of Action of Contractile Pyocins

Govan

1974

Journal of General Microbiology

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S U M M A R YThe adsorption and inhibitory action of pyocin 21 on sensitive cells of Pseudonzonas aeruginosa (P. pyocyanea) were observed by fluorescence microscopy and by using agar cultures. By electron microscopy, preparations from four pyocinogenic strains of P. aeruginosa were seen to include contracted and uncontracted particles, isolated tail cores and sheaths, The importance of adsorption and contraction of the particles on the surface of sensitive bacteria for the inhibitory action of these pyocins is suggested by the following evidence : ( I ) Particles adsorbed to sensitive bacteria at o "C, but contraction of particles was not then observed and the bacteria were not disrupted. ( 2 ) Pyocin particles did not adsorb to pyocin-resistant bacteria. (3) The ability to adsorb to sensitive bacteria and to kill them was absent after removal of the contractile sheath with sodium dodecyl sulphate. (4) When treated with homologous antiserum, pyocin activity was neutralized and the agglutinated particles remained unadsorbed and uncontracted. (5) Bacterial receptors for contractile pyocins contain lipopolysaccharide ; such extracts from sensitive, but not from resistant, cells of P. aeruginosa inactivated pyocins, and contracted particles were seen adsorbed to lipopolysaccharide fragments.

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Studies on the Pyocins of Pseudomonas aeruginosa: Morphology and Mode of Action of Contractile Pyocins

Govan

1974

Journal of General Microbiology

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Specific Cleavage at Fibers of a Bacteriophage-Tail-Like Bacteriocin, Pyocin R1, by Successive Treatment with Organomercurial Compounds and Trypsin

Shimizu

Kumazaki

Ishii

1982

J Virol

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Existence and Reactivity of Sulfdryl Groups in Pyocin R<xref ref-type="fn" rid="fn1"><sup>*</sup></xref>

Cited by 2 publications

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Studies on the Pyocins of Pseudomonas aeruginosa: Morphology and Mode of Action of Contractile Pyocins

Studies on the Pyocins of Pseudomonas aeruginosa: Morphology and Mode of Action of Contractile Pyocins

Specific Cleavage at Fibers of a Bacteriophage-Tail-Like Bacteriocin, Pyocin R1, by Successive Treatment with Organomercurial Compounds and Trypsin

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