1. Galactoside carrier in E. coli

2. Cell surface antigen of Brucella.

3. Structural protein in the M line of striated muscle (myomesin). (4) Cell wall protein of streptococci: antibody typing of the M protein is important in identification of different strains of Group A streptococci (at least 55 serotypes are known). The M protein confers antiphagocytic properties on the cell and is present as hair like fimbriae on the surface. M protein is an important virulence factor and antibodies directed against M protein are essential for phagocytic killing of the bacteria.

This entry appears with permission from the Dictionary of Cell and Molecular Biology

(11 Mar 2008)

MPPL, MPR II, M-Prolog, M-protease < Prev | Next > m proteins, MPS III, MPSX, MPTP

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