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What influences the specific 3D shape of an antibody, making it specific to a certain antigen?

User Conya
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The antibodies are a kind of immunoglobulins that helps the body to detect some pathogens.

When a specific pathogen is presented to de B-Cells, the B cells produces a specific antibody that would recognize the epitopes in the antigen.

this complementarity is in 3D shape, and it fits like a key to a door. it is pretty specific to each epitope.

User Tabia
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