Effect of detergents on streptolysin S precursor.

Infection and Immunity
G B Calandra

Abstract

Group A streptococci which produce streptolysin S contain a cellular precursor to streptolysin S in the membranes and cytoplasm which is activatable by blending in a Vortex mixer with glass beads and ribonucleic acid (RNA)-core (RNA preparation from yeast). Although no activation of precursor occurred when it was mixed with detergents, it was activated when blended with glass beads and detergents such as Tergitol NP-40 and Brij 35. Maximum activation of precursor was achieved in 1 to 2% detergent, in pH 6.5 buffer, and after 8 min of blending. Detergents Tween 20, 40, 60, and 80, Brij 56, and Lubrol WX also activated precursor, but, of all the hemolysin preparations, those with Tween 40 or 60 or Lubrol WX were the most stable. The addition of RNA-core during or after blending of precursor with detergents enhanced the titer and stability of the hemolysin. This was due in part to the association of the hemolytic moiety with RNA-core. Activation of precursor in the membrane was better with a detergent, whereas that in the cytoplasm was better with RNA-core. Therefore, precursor from two different cellular locations can be differentiated by the effects of RNA-core and detergents on precursor titer.

References

Jul 1, 1975·Infection and Immunity·G B Calandra, E L Oginsky
Oct 1, 1975·Infection and Immunity·G B Calandra, T S Theodore
Jan 1, 1973·Annual Review of Biochemistry·N A Machtiger, C F Fox
Dec 1, 1963·The Journal of Experimental Medicine·I GINSBURG, T N HARRIS
Aug 1, 1974·Antimicrobial Agents and Chemotherapy·K YokogawaY Yoshimura
Nov 1, 1949·The Journal of Experimental Medicine·A W BERNHEIMER

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Citations

Jan 1, 1981·Infection and Immunity·G B Calandra, R M Cole
Dec 1, 1981·Infection and Immunity·B A Marchlewicz, J L Duncan
Jun 1, 1983·Archives of Biochemistry and Biophysics·T AkaoC Y Lai

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