Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
extracellular matrix
|
| gptkbp:alteredAfterFertilization |
hardens to block polyspermy
|
| gptkbp:composedOf |
glycoproteins
|
| gptkbp:degradedBy |
enzymes from sperm
|
| gptkbp:firstDescribed |
gptkb:Karl_Ernst_von_Baer
|
| gptkbp:foundIn |
mammalian oocyte
|
| gptkbp:function |
sperm binding
prevention of polyspermy protection of oocyte |
| gptkbp:hasProtein |
ZP2
ZP1 ZP3 ZP4 |
| gptkbp:hasViewOf |
light microscopy
|
| https://www.w3.org/2000/01/rdf-schema#label |
Zona pellucida (in mammals)
|
| gptkbp:location |
surrounds plasma membrane of oocyte
|
| gptkbp:orthologIn |
vitelline membrane (in non-mammals)
|
| gptkbp:roleInFertilization |
induces acrosome reaction
mediates species-specific sperm binding |
| gptkbp:scientificName |
zona pellucida
|
| gptkbp:thickness |
~6-10 micrometers
|
| gptkbp:bfsParent |
gptkb:Ovum
|
| gptkbp:bfsLayer |
6
|