MeSH definition : A protein present in the cell wall of most Staphylococcus aureus strains. The protein
selectively binds to the Fc region of human normal and myeloma-derived IMMUNOGLOBULIN
G. It elicits antibody activity and may cause hypersensitivity reactions due to histamine
release; has also been used as cell surface antigen marker and in the clinical assessment
of B lymphocyte function.;
MeSH synonym : protein a, staphylococcal; protein a;
CISMeF synonym : a, protein; a, staphylococcal protein;
A protein present in the cell wall of most Staphylococcus aureus strains. The protein
selectively binds to the Fc region of human normal and myeloma-derived IMMUNOGLOBULIN
G. It elicits antibody activity and may cause hypersensitivity reactions due to histamine
release; has also been used as cell surface antigen marker and in the clinical assessment
of B lymphocyte function.