Antigen Receptors IgM and IgD (IMAGE)
Caption
Researchers previously assumed that receptors such as the antigen receptors of class Immunoglobulin M and Immunoglobulin D are freely diffusing and equally distributed molecules on the membrane (image above). However, the new study shows that these antigen receptors are organized in different membrane compartments, also called 'protein islands', with diameters of 150-200 nanometers (image below). This finding is another indication that, at nanoscale distance, the proteins on cellular membranes are highly organized.
Credit
Research Group Reth/BIOSS
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