nucleotide sequences of a large number of v- ( d ) -j junctions of t cell receptor ( tcr ) gamma and delta genes show that most fetal thymocytes express on their surface one of just two gamma delta tcrs known to be expressed by epidermal gamma delta t cells ( s-iel ) or intraepithelial gamma delta t cells associated with female reproductive organs ( r-iel ) .
C0087051
t cell receptor
C0085246
gamma delta tcrs