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FEMS Microbiol Lett. 1998 May 1;162(1):123-6.

Constitutive choline transport in Pseudomonas aeruginosa.

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Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Córdoba, Argentina.


Pseudomonas aeruginosa has a choline uptake system which is expressed in bacteria grown in the presence of succinate and ammonium chloride as the carbon and nitrogen source, respectively. This system obeys Michaelis-Menten kinetics with an apparent Km value of 53 microM; its activity is not inhibited by high osmolarities in the medium but is partially inhibited by choline metabolites such as betaine and dimethylglycine.

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