\pɹˈə͡ʊtiːn ˈe͡ɪ], \pɹˈəʊtiːn ˈeɪ], \p_ɹ_ˈəʊ_t_iː_n ˈeɪ]\
Definitions of PROTEIN A
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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.
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Word of the day
- An exaggerated p. reniformis curved in the form of a horseshoe. a peculiar form p. in some cases of twin pregnancy. formation in which the two placentae twin gestation are united by a strip of placental tissue.