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metal prints activation metal prints antibodies metal prints antibody metal prints antigen metal prints b cell metal prints bcr metal prints biochemical metal prints biochemistry metal prints biological metal prints biology metal prints blue background metal prints cell membrane metal prints illustration metal prints immune response metal prints immune system metal prints

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Illustration of B cell receptor on the surface of a B cell (purple and orange phospholipid bilayer). B cells, also known as B lymphocytes are a type of white blood cell. B cell receptors (BCR) are transmembrane proteins located on the surface of B cells. BCRs are composed of an antibody (light blue) and a CD79 (dark blue) protein within the membrane. B cell activation is initiated by the binding of an antigen, such as a bacterial or viral protein, to a BCR. CD79 then triggers a signalling cascade within the B cell, causing it to produce and release further antibodies.

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