SPACA4
Function
Sperm surface membrane protein that may be involved in sperm-egg plasma membrane adhesion and fusion during fertilization.
Sequence Similarities
Belongs to the SPACA4/bouncer family.
Tissue Specificity
Testis specific (PubMed:12788941). Expressed in spermatozoa (PubMed:12788941).
Cellular localization
- Cell membrane
- Lipid-anchor
- GPI-anchor
- Cytoplasmic vesicle
- Secretory vesicle
- Acrosome
- Expressed in acrosomal matrix and outer and inner acrosomal membranes.
Alternative names
SAMP14, UNQ3046/PRO9862, SPACA4, Sperm acrosome membrane-associated protein 4, Sperm acrosomal membrane-associated protein 14