Schematic and surface representations of the egg coat filament shown in (C). The top scheme shows each ZP module as a solid object, with thick cylinders representing ZP-N and ZP-C domains and thin cylinders depicting the two halves of the IDL; cylinder lengths approximately match the extent of the corresponding 3D structures in (C), and fZP1 P was omitted for clarity. To highlight how the IDLs of each subunit wrap around the ZP-C and ZP-N domains of the other, the fZP1 linker is shown as intact in the solid scheme, and its cleaved moieties have been reconnectedin silicoin the surface model.
