the immune responses to poly ( l-tyr , lglu ) -poly ( dlala ) -- poly ( llys ) , poly ( phe , glu ) -poly ( dlala ) -- poly ( llys ) , and poly ( his , glu ) -poly ( dlala ) -- poly ( llys ) in parent and mutant were same , indicating the ia-1 and the ir genes for these antigens are not identical .
C0301872
immune responses
C0003320
antigens