Structure of P1aABD/β4Fn12 Complex
(A) Schematic illustrations of integrin β4 and P1a fragments used in the experiments (boxed areas).
(B) The crystal structure of the P1aABDΔ22/β4Fn12 complex is shown in two orientations. β4Fn12 is displayed in cyan, and the CH1 and CH2 of the P1aABDΔ22 are displayed in bronze and orange, respectively. The binding interface comprises three salt bridges between P1a and integrin β4; D123/R1225 (2.60 Å), R71/E1242 (3.04 Å), and E68/R1281 (2.57 Å).
see also Figures S7 and S8; Table S2.