Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
The antibody detects endogenous levels of total SPACA3 protein.
SPACA3 (sperm acrosome associated 3), also known as sperm lysozyme-like protein 1, lysozyme-like protein 3, lysozyme-like acrosomal sperm-specific secretory protein ALLP-17, cancer/testis antigen 54 (CT54), LYC3, SPRASA or LYZL3, is a 215 amino acid protein that participates in the fusion and adhesion of sperm and egg plasma membrane during fertilization. Identified as a novel cancer/testis antigen in hematologic malignancies, SPACA3 has the ability to elicit B-cell immune responses in patients with cancer and is considered a potential target for immunotherapy. A member of the glycosyl hydrolase 22 family which is expressed in testis, placenta and epididymis, SPACA3 exists as two alternatively spliced isoforms; SPACA3 isoform 1 is a single-pass type II membrane protein of the sperm acrosome whereas SPACA3 isoform 2 is a secreted protein. Sperm surface membrane protein that may be involved in sperm-egg plasma membrane adhesion and fusion during fertilization. It could be a potential receptor for the egg oligosaccharide residue N-acetylglucosamine, which is present in the extracellular matrix over the egg plasma membrane. The processed form has no detectable bacteriolytic activity in vitro.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Cancer/testis antigen 54; CT54; lysozyme C; Lysozyme-like acrosomal sperm-specific secretory protein ALLP-17; Lysozyme-like protein 3; lysozyme-like sperm-specific secretory protein ALLP17; Sperm acrosome membrane-associated protein 3; sperm lysozyme like protein 1; Sperm lysozyme-like protein 1; sperm lyzozyme-like acrosomal protein 1; Sperm protein reactive with antisperm antibodies; Sperm protein reactive with ASA
Gene Aliases: ALLP17; CT54; LYC3; LYZC; LYZL3; SLLP1; SPACA3; SPRASA; UNQ424/PRO862
UniProt ID: (Human) Q8IXA5
Entrez Gene ID: (Human) 124912
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