After interaction with thymic stromal cells,_____,a glycoprotein not expressed by the uncommitted progenitor cell is activated in developing thymocytes.(Select all that apply.)

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CD2, CD5, and CD127 (IL-7 receptor) are glycoproteins expressed on developing thymocytes after interaction with thymic stromal cells, while CD34 and CD44 are expressed on uncommitted progenitor cells.

After Interaction with Thymic Stromal Cells,_____,a Glycoprotein Not Expressed by the Uncommitted