mouse myeloma cells secreting 19s igm ( immunoglobulin m ) ( mopc 104e and tepc 183 ) or monomer and polymer iga ( immunoglobulin a ) ( mopc 315 ) were incubated with radioactive leucine and the intracellular and secreted immunoglobulins and immunoglobulin subunits were prepared by preparative sucrose-density-gradient centrifugation .
C0021027
immunoglobulins
C1302674
immunoglobulin subunits