Table 3. Characteristics of residues inside the disulfide bond of the T-cell receptor (TCR) α chain.

Position on the TCR single chain	Amino acid residue	Properties	Bond types
29	Ser	Polar uncharged, non-hydrophobic	HB
30	Gln	Polar uncharged, non-hydrophobic	HB
31	Tyr	Aromatic, non-hydrophobic	Pi stack
	Gln	Polar uncharged, non-hydrophobic	HB
	Ser	Polar uncharged, non-hydrophobic	HB
37	Gln	Polar uncharged, non-hydrophobic	HB
68	Arg	Positively charged, non-hydrophobic	HB