Fertilization, egg-sperm interaction, block to polyspermy, egg coat hardening, zona pellucida, ZP module, ZP2 cleavage, ovastacin, protein filament, integrative structural biology
zona pellucida, ZP module, ZP domain, uromodulin, UMOD, Tamm-Horsfall protein, filament, cryo-EM, helical reconstruction, glycosylation, urinary tract infections, egg coat proteins, egg-sperm interaction, ZP3