Abstract
The activity of Bordetella pertussis extracytoplasmic adenylate cyclase (AC) decreased during decelerating growth phase in a Stainer-Scholte medium. Neither proteolytic activity nor virulence variation (phase variation; antigenic modulation) appears to be responsible for the observed activity fall. The addition of methyl-β-cyclo-dextrin enhances AC activity and prevents the inhibition of AC activity by fatty acids. Cyclodextrin could entrap inhibitors increasing in this way the AC activity. These results show that the inclusion of cyclodextrin in the culture medium increases the AC activity.
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D.F. Hozbor and O.M. Yantorno are with the Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, (1900) La Plata, Argentina. A. Samo is with the Comisión de Investigaciones Cientificas de la Provincia de Buenos Aires.
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Hozbor, D.F., Samo, A. & Yantorno, O.M. Effect of methyl-cyclodextrin on adenylate cyclase activity of Bordetella pertussis . World Journal of Microbiology and Biotechnology 7, 309–315 (1991). https://doi.org/10.1007/BF00329396
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DOI: https://doi.org/10.1007/BF00329396