Detection of a single, metal-independent aminopeptidase activity in polymyxin-extracts from Escherichia coli B.
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Aminopeptidases↗
Biomedical subjects
M Teuber
Publications and source records attributed to M Teuber.
A degree in biomedical communications.
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Audiovisual Aids↗
Comparative polyacrylamide electrophoresis of periplasmic proteins released from gram-negative bacteria by polymyxin B.
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Acrylamides↗
[Relationship between the binding and effect of 14 C-polymyxin B on Salmonella typhimurium (brief report)].
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Adsorption↗
[Differential liberation of enzymes from Escherichia coli B following polymycin B (brief report)].
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Cell Membrane Permeability↗
Quantitative correlation of uptake with antibiotic activity of polymyxin B in Salmonella typhimurium.
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Journal Article↗
Differential release of periplasmic versus cytoplasmic enzymes from Escherichia coli B by polymixin B.
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Acid Phosphatase↗
Release of the periplasmic ribonuclease I into the medium from Escherichia coli treated with the membrane-active polypeptide antibiotic polymyxin B.
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Journal Article↗
Release of the periplasmic penicillinases from Escherichia coli by toluene.
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Bacterial Proteins↗
Lysozyme-dependent production of spheroplast-like bodies from polymyxin B-treated Salmonella typhimurium.
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Bacteriolysis↗
Low antibiotic potency of isohumulone.
Isohumulone is 15 to 30 times less inhibitory than lupulone or humulone on the growth of gram-positive bacteria.
Anti-Bacterial Agents↗
Preparation of biologically active mono-N-acetyl (14C)-derivatives of the membrane-specific polypeptide antibiotic polymyxin B.
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Acetates↗
Phosphorylation of methyl-alpha-D-glucopyranoside in polymyxin B-treated Salmonella typhimurium.
Phosphoenolpyruvate-dependent phosphorylation of methyl-alpha-d-glucopyranoside in Salmonella typhimurium is increased by the membrane active polypeptide antibiotic polymyxin B whereas active transport ability is abolished.
Biological Transport, Active↗
Susceptibility to polymyxin B in penicillin G-induced Proteus mirabilis L forms and spheroplasts.
A polymyxin B-resistant strain of Proteus mirabilis was converted into L forms and spheroplasts in the presence of penicillin G. This treatment caused a 400-fold increase in polymyxin B susceptibility. The acquired susceptibility was in the range of the natural susceptibility reported for susceptible gram-negative bacteria ( approximately 1 mug/ml). The high susceptibility to polymyxin B was lost as soon as the spheroplasts and L forms were allowed to reconvert into the bacillary form in penicillin-free media. This behavior is strong evidence that the natural resistance of Proteus strains to polymyxins is due to the impermeability of the outer cell wall structures to these antibiotic substances.
Cell Membrane Permeability↗
[Simple method for radioactive labelling of the membrane-specific polypeptide antibiotic polymyxin B: synthesis of the biologically active (1-14C)mono-N-acetyl derivative].
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Acetates↗
Aldoheptoses in the O-antigenic lipopolysaccharide of Salmonella typhimurium and other gram-negative bacteria. I. Chemical synthesis of L-glycero-D-mannoheptose and beta-L-glycero-D-mannoheptopyranosyl 1-phosphate.
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Antigens↗
Precipitation of ribosomes from E. coli B by polymyxin B.
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Chemical Precipitation↗
Inhibition of ribonuclease I in Escherichia coli by polymyxin B.
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Adenine Nucleotides↗