SPA17 Gene Summary [Human]

This gene encodes a protein present at the cell surface. The N-terminus has sequence similarity to human cAMP-dependent protein kinase A (PKA) type II alpha regulatory subunit (RIIa) while the C-terminus has an IQ calmodulin-binding motif. The central portion of the protein has carbohydrate binding motifs and likely functions in cell-cell adhesion. The protein was initially characterized by its involvement in the binding of sperm to the zona pellucida of the oocyte. Recent studies indicate that it is also involved in additional cell-cell adhesion functions such as immune cell migration and metastasis. A retrotransposed pseudogene is present on chromosome 10q22.[provided by RefSeq, Jan 2009]

Details

Type
Protein Coding
Official Symbol
SPA17
Official Name
sperm autoantigenic protein 17 [Source:HGNC Symbol;Acc:HGNC:11210]
Ensembl ID
ENSG00000064199
Bio databases IDs NCBI: 53340 Ensembl: ENSG00000064199
Aliases sperm autoantigenic protein 17, cancer/testis antigen 22
Synonyms CT22, SP17, SP17-1, sperm autoantigenic protein 17
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human SPA17 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Calmodulin-binding motif
  • protein binding
  • DD_R_PKA_DPY30-like
  • IQ calmodulin-binding motif

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
regulated by
role in cell
  • binding
  • cytotoxicity

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • motile cilia
  • Cytoplasm
  • cilia
  • cell surface
  • cellular membrane
  • plasma membrane extracellular face
  • sperm fibrous sheath
  • neurites

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human SPA17 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • binding of sperm to zona pellucida
  • spermatogenesis
  • epithelial cilium movement
  • single fertilization

Cellular Component

Where in the cell the gene product is active
  • motile cilium
  • cytoplasm
  • cilium
  • external side of plasma membrane
  • sperm principal piece
  • flagellar fibrous sheath
  • extracellular region
  • neuron projection

Molecular Function

What the gene product does at the molecular level
  • calmodulin binding
  • protein binding

Gene-Specific Assays for Results You Can Trust

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