FIG. 2.

Regions of Tri r 2 which elicit different T-cell responses in IH and DTH subjects. The open box represents the full primary amino acid sequence of the mature form of Tri r 2 (289 amino acids). The solid box corresponds to the amino-terminal major T-cell epitope, P5, consisting of 20 amino acids. The hatched boxes correspond to two regions of the molecule spanned by peptides which induce different patterns of T-cell proliferation in PBMC from IH and DTH subjects.