from the knowledge , for some of these antibodies , of the amino-acid regions they recognize on the il-2 molecule , it is inferred that the skin antigen shares with il-2 at least two overlapping epitopes located in the 33-54 amino-acid region of il-2 , a region that has been shown to be involved in the binding of il-2 to the il-2-receptor ( il-2-r ) 55 kd chain .
C0003320
antigen
C0003316
epitopes