GO terms:
Biological Process:
proteolysis [GO:0006508],
single fertilization [GO:0007338],
binding of sperm to zona pellucida [GO:0007339],
Molecular Function:
metalloendopeptidase activity [GO:0004222],
metallopeptidase activity [GO:0008237],
metal ion binding [GO:0046872],
peptidase activity [GO:0008233],
hydrolase activity [GO:0016787],
Cellular Component:
plasma membrane [GO:0005886],
integral component of membrane [GO:0016021],
axon [GO:0030424],
neuronal cell body [GO:0043025],
membrane [GO:0016020],
neuron projection [GO:0043005],