Vitelline envelope sperm lysin receptor - Q8WR62 (VERL_HALRU)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q8WR62: 7
Structural component of the egg vitelline envelope; forms long filaments. Functions as species-specific receptor for the sperm protein lysin; prevents fertilization by sperm from other species. Each VERL chain can bind multiple copies of the sperm protein lysin; this creates a 3 um hole in the egg vitelline envelope through which the sperm passes. UniProt
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Subunit Structure
May form disulfide-linked homodimers (PubMed:9192632, PubMed:28622512). Interacts (via VERL repeats) with sperm lysin (PubMed:9192632, PubMed:28622512). Each VERL chain can bind numerous lysin molecules (PubMed:9192632, PubMed:28622512). UniProt
VERL repeat 2 is important for species-specific lysin binding, even if it has lower affinity for lysin than VERL repeat 3. VERL repeats 3 to 22 have high sequence similarity, indicating they all can bind lysin equally well, but they do not play a role in species-specific sperm selection. VERL repeat 1 does not bind lysin. UniProt
  • Organism: California red abalone
  • Length:
  • UniProt
  • Other Gene names: VERL
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