in contrast , we observed that igch segments in a b-cell plasmacytoma ( mpc11 ) and two abelson murine leukemia virus-transformed pre-b cell lines ( 22d6 and 300-19o ) replicated as early as ( 300-19p ) or earlier than ( mpc11 and 22d6 ) c alpha in mel cells .
C0004561
b-cell
C0032131
plasmacytoma