Fertilins

**Definition:** Sperm surface proteins involved in sperm-egg fusion. They consist of two subunits, fertilin alpha (ADAM1a) and beta (ADAM2), both of which belong to the metalloprotease-disintegrin protein family. The beta subunit does not have catalytic activity.

**Tree numbers:** - D08.811.277.656.675.374.102.750 - D09.400.430.500.750 - D09.400.430.890.331 - D12.776.395.033.750 - D12.776.395.550.331

**Synonyms:** - Fertilin Protein - Fertilin - PH 30 Fusion Protein - PH-30 Fusion Protein - PH-30 Protein