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CBA thymocytes were subjected to cocapping experiments using AThy-1.2 and choleragen. The finding that both structures showed a common ligant-induced redistribution implies that choleragen receptors of the cell membrane are associated with the thymocyte-brain molecule. Furthermore, it was found that the thymocyte-brain antigenic determinants on the thymocyte were not blocked by prior choleragen treatment. This suggests a spatial distance between these structures on the molecule.
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