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Aliases for SPANXB1 Gene

Aliases for SPANXB1 Gene

  • SPANX Family, Member B1 2 3
  • SPANXB 3 4 6
  • Nuclear-Associated Protein SPAN-Xb 3 4
  • Nuclear-Associated Protein SPAN-Xf 3 4
  • Cancer/Testis Antigen 11.2 3 4
  • SPANX Family Member B/F 3 4
  • SPANX Family, Member B2 2 3
  • SPANX-B 3 4
  • CT11.2 3 4
  • Sperm Protein Associated With The Nucleus, X Chromosome, Family Member B1 3
  • Sperm Protein Associated With The Nucleus On The X Chromosome B/F 3
  • Cancer/Testis Antigen Family 11, Member 2 3
  • Cancer/Testis Antigen Family 11 2
  • SPANX Family, Member F2 3
  • SPANX Family, Member F1 3
  • Member 2 2
  • SPANX-F 4
  • SPANXF1 3
  • SPANXF2 3
  • SPANXB2 3
  • B1 3

External Ids for SPANXB1 Gene

Previous HGNC Symbols for SPANXB1 Gene


Previous GeneCards Identifiers for SPANXB1 Gene

  • GC0XP134615
  • GC0XP136942
  • GC0XP138029
  • GC0XP138790
  • GC0XP139810
  • GC0XP139913
  • GC0XP139925
  • GC0XP139927
  • GC0XP140096

Summaries for SPANXB1 Gene

Entrez Gene Summary for SPANXB1 Gene

  • Temporally regulated transcription and translation of several testis-specific genes is required to initiate the series of molecular and morphological changes in the male germ cell lineage necessary for the formation of mature spermatozoa. This gene is a member of the SPANX family of cancer/testis-associated genes, which are located in a cluster on chromosome X. The SPANX genes encode differentially expressed testis-specific proteins that localize to various subcellular compartments. This particular family member contains an additional 18 nucleotides in its coding region compared to the other family members in the same gene cluster. This family member is also subject to gene copy number variation. Although the protein encoded by this gene contains consensus nuclear localization signals, the major site for subcellular localization of expressed protein is in the cytoplasmic droplets of ejaculated spermatozoa. This protein provides a biochemical marker for studying the unique structures in spermatazoa, while attempting to further define its role in spermatogenesis. [provided by RefSeq, Apr 2014]

GeneCards Summary for SPANXB1 Gene

SPANXB1 (SPANX Family, Member B1) is a Protein Coding gene. An important paralog of this gene is SPANXD.

No data available for UniProtKB/Swiss-Prot , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for SPANXB1 Gene

Genomics for SPANXB1 Gene

Regulatory Elements for SPANXB1 Gene

Genomic Location for SPANXB1 Gene

141,002,591 bp from pter
141,003,706 bp from pter
1,116 bases
Plus strand

Genomic View for SPANXB1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for SPANXB1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for SPANXB1 Gene

Proteins for SPANXB1 Gene

  • Protein details for SPANXB1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Sperm protein associated with the nucleus on the X chromosome B/F
    Protein Accession:
    Secondary Accessions:
    • B2RPP2
    • Q32WQ7
    • Q5JYZ7
    • Q8TAD5

    Protein attributes for SPANXB1 Gene

    103 amino acids
    Molecular mass:
    11826 Da
    Quaternary structure:
    No Data Available

neXtProt entry for SPANXB1 Gene

Proteomics data for SPANXB1 Gene at MOPED

Post-translational modifications for SPANXB1 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for SPANXB1 Gene

ENSEMBL proteins:
REFSEQ proteins:

Antibody Products

No data available for DME Specific Peptides for SPANXB1 Gene

Domains for SPANXB1 Gene

Protein Domains for SPANXB1 Gene


Graphical View of Domain Structure for InterPro Entry



  • Belongs to the SPAN-X family.
  • Belongs to the SPAN-X family.
genes like me logo Genes that share domains with SPANXB1: view

No data available for Gene Families and Suggested Antigen Peptide Sequences for SPANXB1 Gene

Function for SPANXB1 Gene

Gene Ontology (GO) - Molecular Function for SPANXB1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003674 molecular_function ND --
genes like me logo Genes that share ontologies with SPANXB1: view

Animal Model Products

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for SPANXB1

In Situ Assay Products

Flow Cytometry Products

No data available for Molecular function , Enzyme Numbers (IUBMB) , Phenotypes , Animal Models , miRNA , Transcription Factor Targeting and HOMER Transcription for SPANXB1 Gene

Localization for SPANXB1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for SPANXB1 Gene

Cytoplasm. Nucleus. Note=Associated with nuclear craters.

Subcellular locations from

Jensen Localization Image for SPANXB1 Gene COMPARTMENTS Subcellular localization image for SPANXB1 gene
Compartment Confidence
nucleus 5
cytosol 1
mitochondrion 1

Gene Ontology (GO) - Cellular Components for SPANXB1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005634 nucleus TAS 10906052
GO:0005737 cytoplasm IEA --
genes like me logo Genes that share ontologies with SPANXB1: view

Pathways for SPANXB1 Gene

SuperPathways for SPANXB1 Gene

No Data Available

Interacting Proteins for SPANXB1 Gene

STRING Interaction Network Preview (showing 1 interactants - click image to see details)
Selected Interacting proteins: ENSP00000405202 for SPANXB1 Gene via STRING

Symbol External ID(s) Details

Gene Ontology (GO) - Biological Process for SPANXB1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007286 spermatid development NAS 10906052
genes like me logo Genes that share ontologies with SPANXB1: view

No data available for Pathways by source for SPANXB1 Gene

Transcripts for SPANXB1 Gene

mRNA/cDNA for SPANXB1 Gene

(2) REFSEQ mRNAs :
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for SPANXB1

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for SPANXB1 Gene

No ASD Table

Relevant External Links for SPANXB1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for SPANXB1 Gene

mRNA expression in normal human tissues for SPANXB1 Gene

Protein differential expression in normal tissues for SPANXB1 Gene

This gene is overexpressed in Testis (50.9) and Ovary (18.1).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for SPANXB1 Gene

SOURCE GeneReport for Unigene cluster for SPANXB1 Gene Hs.711489

mRNA Expression by UniProt/SwissProt for SPANXB1 Gene

Tissue specificity: Detected in testis and sperm.
genes like me logo Genes that share expressions with SPANXB1: view

Expression partners for SPANXB1 Gene

* - Elite partner

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for SPANXB1 Gene

Orthologs for SPANXB1 Gene

This gene was present in the common ancestor of human and chimp.

Orthologs for SPANXB1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia -- 36
  • 73 (a)
Species with no ortholog for SPANXB1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • cow (Bos Taurus)
  • dog (Canis familiaris)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • lizard (Anolis carolinensis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • mouse (Mus musculus)
  • oppossum (Monodelphis domestica)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for SPANXB1 Gene

Gene Tree for SPANXB1 (if available)
Gene Tree for SPANXB1 (if available)

Paralogs for SPANXB1 Gene

Paralogs for SPANXB1 Gene

(9) SIMAP similar genes for SPANXB1 Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with SPANXB1: view

Variants for SPANXB1 Gene

Sequence variations from dbSNP and Humsavar for SPANXB1 Gene

SNP ID Clin Chr 0X pos Sequence Context AA Info Type MAF
rs3960611 -- 141,002,295(-) CCTAT(G/T)AAGTG upstream-variant-2KB
rs3976442 -- 141,001,579(+) ttaat(C/T)ataac upstream-variant-2KB
rs6418846 -- 141,003,248(+) TGACC(C/G)TACCC intron-variant
rs6528798 -- 141,004,029(+) AAATA(G/T)ATGCT downstream-variant-500B
rs6634219 -- 141,000,838(+) atgca(A/G)ggcca upstream-variant-2KB

Structural Variations from Database of Genomic Variants (DGV) for SPANXB1 Gene

Variant ID Type Subtype PubMed ID
dgv2481e1 CNV Complex 17122850
dgv2482e1 CNV Complex 17122850
dgv2483e1 CNV Complex 17122850
nsv433463 CNV Gain 18776910
nsv524931 CNV Gain 19592680
nsv7462 OTHER Inversion 18451855
nsv511087 CNV Complex 20534489
nsv508805 CNV Insertion 20534489
nsv510863 CNV Loss 20534489
nsv7123 CNV Loss 18451855
nsv9978 CNV Gain 18304495
nsv7124 CNV Insertion 18451855
nsv821600 CNV Deletion 20802225
esv1002958 CNV Loss 20482838
esv25300 CNV Gain+Loss 19812545
nsv499192 CNV Loss 21111241
nsv515176 CNV Complex 21397061

Relevant External Links for SPANXB1 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for SPANXB1 Gene

Disorders for SPANXB1 Gene

Relevant External Links for SPANXB1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator

No disorders were found for SPANXB1 Gene.

No data available for MalaCards , OMIM , UniProtKB/Swiss-Prot , University of Copenhagen DISEASES , Novoseek inferred disease relationships and Genatlas for SPANXB1 Gene

Publications for SPANXB1 Gene

  1. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4
  2. The DNA sequence of the human X chromosome. (PMID: 15772651) Ross M.T. … Bentley D.R. (Nature 2005) 3 4
  3. Dynamic structure of the SPANX gene cluster mapped to the prostate cancer susceptibility locus HPCX at Xq27. (PMID: 16251457) Kouprina N. … Larionov V. (Genome Res. 2005) 3 4
  4. Spermatid-specific expression of the novel X-linked gene product SPAN-X localized to the nucleus of human spermatozoa. (PMID: 10906052) Westbrook V.A. … Herr J.C. (Biol. Reprod. 2000) 3 4
  5. The human SPANX multigene family: genomic organization, alignment and expression in male germ cells and tumor cell lines. (PMID: 12758128) Zendman A.J. … van Muijen G.N.P. (Gene 2003) 3 4

Products for SPANXB1 Gene

Sources for SPANXB1 Gene

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