[Determination of protein A in Staphylococcus aureus strains from a collection].
The author used the haemagglutination method to estimate A protein in 153 strains of Staphylococcus aureus from collections. Protein A was detected in 66% of coagulase positive strains deposited in the course of time in the collection in 1983-1988. All strains were kept in skimmed milk at -20 degrees C. For evaluation of the reaction a semiquantitative scale was proposed. The author observed a diminished capacity to form protein A with the time of storage of the strains. In strains deposited for a shorter time in the collection (only three years) the percentage of positive results rose to 92.5%. In coagulase negative strains protein A was not detected.
Schlegelová
J
J
Výzkumný ústav veterinárniho lékarství.
Sedivá
I
I
Opletal
A
A
Rysánek
D
D
D006386:Hemagglutination Tests; D013205:Staphylococcal Protein A / Q000032:analysis*; D013211:Staphylococcus aureus / Q000378:metabolism*
D013205:Staphylococcal Protein A
Stanovení proteinu A u sbírkových kmenů Staphylococcus aureus.