Pseudomonas aeruginosa common surface antigens were compared in a permeability mutant (PCC118) and its parent (PAO503). The distribution of lipopolysaccharide and porin antigens in the mutant supports the conclusion that beta-lactam permeability was affected by lipopolysaccharide-side chain presentation rather than by a change in porin number.
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Godfrey et al. (1986) studied this question.
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