Fig. 1. Structures of an annexin A5 (Ax5) monomer and two-dimensional (2D) Ax5 crystal. (a) Ribbon model of the Ax5 monomer having four domains with the same 70 amino acid series, which are numbered from 1 to 4 (PDB code 1ALA). (b) Schematic of the 2D crystal of annexin A5 with a p6 symmetry (unit cell: a1 = a2 = 17.7 nm, β = 120°).
