1. Fab region - 2. Fc region - 3. Heavy chain with one variable (VH) domain followed by a constant domain (CH1), a hinge region, and two more constant (CH2 and CH3) domains. - 4. Light chain with one variable (VL) and one constant (CL) domain - 5. Antigen binding site (paratope) - 6. Hinge regions

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1. Fab region  -  2. Fc region  -  3. Heavy chain with one variable (VH) domain followed by a constant domain (CH1), a hinge region, and two more constant (CH2 and CH3) domains.  -  4. Light chain with one variable (VL) and one constant (CL) domain  -  5. Antigen binding site (paratope)  -  6. Hinge regions



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