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Autolysis of Streptococcus cremoris

Published online by Cambridge University Press:  01 June 2009

Lynette Mou
Affiliation:
Russell Grimwade School of Biochemistry, University of Melbourne, Parkville, Victoria 3052, Australia
J. J. Sullivan
Affiliation:
Dairy Research Laboratory, Division of Food Research, C.S.I.R.O., Highett, Victoria 3190, Australia
G. R. Jago
Affiliation:
Dairy Research Laboratory, Division of Food Research, C.S.I.R.O., Highett, Victoria 3190, Australia

Summary

The autolysin of Streptococcus cremoris had the specificity of an endo-N-acetylmuramidase as it hydrolysed the linkage between N-acetylmuramic acid and N-acetylglucosamine. The enzyme had no amidase or endopeptidase action. It reached highest activity in the exponential phase of growth and in the electron microscope seemed to fragment the coccal wall at the equatorial ring.

Type
Research Article
Copyright
Copyright © Proprietors of Journal of Dairy Research 1976

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