examination of the lysates of the surviving cells by immunoprecipitation demonstrated that 1 ) virtually all i-a and i-e/c molecules are co-expressed and synthesized by ig+ , igm+ lymphocytes , 2 ) i-a , i-e/c , and igm molecules are present on many of the cells secreting igm and igg , and 3 ) populations of ig-bearing or ig-secreting cells that lack detectable i-a and i-e/c antigens can be identified in spleen cell populations .
C1327616
secreting
C0007634
cell