The ATP-binding cassette (ABC) transporter for maltose/maltodextrins of Salmonella typhimurium. Characterization of the ATPase activity associated with the purified MalK subunit.

Abstract excerpt

The ATPase activity associated with the purified MalK subunit of the maltose transport complex of Salmonella typhimurium, a bacterial ATP-Binding Cassette (ABC) transporter (Walter, C., Höner zu Bentrup, K., and Schneider, E. (1992) J. Biol. Chem. 267, 8863-8869), was characterized in detail. The analysis of the kinetics of ATP hydrolysis yielded a Km value of 70 +/- 4 microM and a Vmax of 1.3 +/- 0.3...

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