A.Which cell-surface glycoprotein distinguishes professional antigen-presenting cells from other cells and is involved in the co-stimulation of T cells?
B.What receptors can it bind on the T cell and what signal does it deliver in each case?
C.Explain the consequence of antigen recognition by T cells in the absence of this glycoprotein on the antigen-presenting cell.

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The Answer of A.Which cell-surface glycoprotein distinguishes professional antigen-presenting cells from other cells and is involved in the co-stimulation of T cells?
B.What receptors can it bind on the T cell and what signal does it deliver in each case?
C.Explain the consequence of antigen recognition by T cells in the absence of this glycoprotein on the antigen-presenting cell.

AWhich Cell-Surface Glycoprotein Distinguishes Professional Antigen-Presenting Cells from Other Cells