Anti Bodies
Antibodies can be used

to catalyze chemical reactions
for the localization of proteins in the cell
All of these
for protein purification

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Anti Bodies
Each IgA antibody molecule consists of

two polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site
three polypeptide chain and has two antigen binding site
four polypeptide chain and has two antigen binding site

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