| Name | Izumo sperm-egg fusion protein 1 |
| Description | Essential sperm cell-surface protein required for fertilization by acting as a ligand for IZUMO1R/JUNO receptor on egg. The IZUMO1:IZUMO1R/JUNO interaction is a necessary adhesion event between sperm and egg that is required for fertilization but is not sufficient for cell fusion. The ligand-receptor interaction probably does not act as a membrane 'fusogen'. |
| UniProt ID | Q8IYV9 |
| Gene | IZUMO1 |
