Gene Information
Gene NameFSP2
OrganismHomo sapiens (Human)
Gene Length493
Protein NamesCalcium-binding tyrosine phosphorylation-regulated protein (Calcium-binding protein 86) (Cancer/testis antigen 88) (CT88) (Fibrousheathin II) (Fibrousheathin-2) (FSP-2) (Testis-specific calcium-binding protein CBP86)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBO75952
Gene CardCABYR
Uniprot IDO75952
PfamPF02197
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityExpressed in elongating spermatids and spermatozoa (at protein level). Isoform 1 is expressed in testis. Isoform 3 and isoform 5 are also expressed in brain, pancreas and numerous brain tumors. {ECO:0000269|PubMed:11820818, ECO:0000269|PubMed:15752768, ECO:0000269|PubMed:16139264}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs3786417  rs35118855  rs1049682  rs1049683 
Subcellular location [CC]Cytoplasm, cytoskeleton. Cell projection, cilium, flagellum. Note=Localized to fibrous sheath including the surface of the longitudinal columns and ribs of the principal piece of sperm flagella.;
[Isoform 1]: Nucleus. Cytoplasm. Cell projection, cilium, flagellum. Note=According to PubMed:15752768, isoform 1, isoform 3 and isoform 5 are both nuclear and cytoplasmic.;
[Isoform 3]: Nucleus. Cytoplasm. Cell projection, cilium, flagellum. Note=According to PubMed:15752768, isoform 1, isoform 3 and isoform 5 are both nuclear and cytoplasmic.;
[Isoform 5]: Nucleus. Cytoplasm. Cell projection, cilium, flagellum. Note=According to PubMed:15752768, isoform 1, isoform 3 and isoform 5 are both nuclear and cytoplasmic.
Mouse PG classificationNA
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