the xid gene , which retards or prevents the expression of murine lupus by retarding b cell maturation , was associated in bxsb.xid , nzb.xid , and mrl-lpr/lpr.xid congenic mice with marked reduction in expression of myc , bas , and abl in the spleens containing b cells , but not of myb in the lpr/lpr.xid nodes containing primarily the unusual t cells .
C1511002
b cell maturation
C0004561
b cells