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Biological Activity of Staphylococcin 462: Bacteriocin from Staphylococcus aureus
Of the 70 strains of gram-positive bacteria tested for susceptibility to staphylococcin 462, 24 (34%) were susceptible, distributed among 7 genera, and revealed that S. aureus 140 stops synthesizing protein immediately.
Antiserum Neutralization of Bacteriophage Q β: A Mathematical Analysis
The results support the idea of the development of resistant phages by interaction with antiserum components and the curve of neutralization could be approximated mathematically.
Characterization of a Bacteriocin from Staphylococcus aureus Strain 462
Staphylococcin 462 was not found in significant concentrations in the supernatant fluid of broth cultures, nor was it released into the suspending liquid when the cells were mechanically disrupted, however, extraction of the cells with 7 M urea resulted in the liberation of much of the activity.
Characterization ofa Bacteriocin from Staphylococcus aureusStrain 462
strains selected forstudyfrom200isolates ofstaphylococci ofanimalorigin. These bacteriocins arespecific intheir activity, inhibiting thegrowth ofcertain strains ofS.aureusandother gram-positive
Overhead Transparencies for Viewing Molecular Structure in Three Dimensions
A major aim in the study of macromolecules such as DNA and proteins is to determine their structure and thus learn how they work. One of the most exciting aspects of the discovery of the structure of