Homophilic interactions of JAM members.

MDCK cells transfected with JAM-1–EGFP, JAM-2–EGFP, or JAM-3–EGFP were mixed with nontransfected MDCK cells and analyzed for localization of EGFP chimeric molecules in A, B, and C, respectively. Corresponding phase-contrast images are shown in D, E, and F. Arrows highlight contacts between transfected cells enriched in fusion proteins. Black lines on phase-contrast pictures indicate the border between transfected and nontransfected cells. Magnification × 400.