to determine whether these subpopulations have unique functions , we assayed the number of anti-srbc-secreting cells and the number of ig-secreting cells in unseparated populations and in populations in which the b2 and b3 cells were removed by immobilized monolayers of escherichia coli-2 , a bacteria that binds b2 and b3 cells .
C1327616
secreting
C0007634
cells