FIGURE 3.

Typical pattern evolution without active TCR transport for the effective binding energies U_TM = 6.5 k_BT of TCR/MHCp complexes and U_LI = 3 k_BT of LFA-1/ICAM-1 complexes. The overall concentrations of TCR, ICAM-1, LFA-1, and glycoproteins in each of the membranes is 0.4/a² ≃ 80 molecules/μm² for a linear patch size of a ≃ 70 nm, and the concentration of MHCp is 0.1/a² ≃ 20 molecules/μm². Membrane patches with bound TCR/MHCp complexes are shown in green, patches with bound LFA-1/ICAM-1 complexes in red. The black circle represents the contact zone rim.