similar paired staining of complexed lambda and alpha chains in immunoglobulin ( ig ) a myeloma cells , of kappa and free j chains in igg myeloma cells , and of secretory iga and its epithelial transport protein , the free secretory component ( sc ) , in colonic crypt cells , demonstrated that pap staining inhibits subsequent dif staining of an antigenic determinant present on the same molecule as the antigen revealed by the brown color of diaminobenzidine ( dab ) or present or an unassociated molecule in the same cell .
C0020838
secretory
C0036538
secretory component