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Aliases for XG Gene

Aliases for XG Gene

  • Xg Blood Group 2 3
  • PBDX 3 4 6
  • Xg Blood Group (Pseudoautosomal Boundary-Divided On The X Chromosome) 2 3
  • XG Glycoprotein 3
  • Glycoprotein Xg 3
  • Protein PBDX 4

External Ids for XG Gene

Previous HGNC Symbols for XG Gene

  • PBDX

Previous GeneCards Identifiers for XG Gene

  • GC0XU990234
  • GC0XM001839
  • GC0XP002200
  • GC0XP002265
  • GC0XP002663

Summaries for XG Gene

Entrez Gene Summary for XG Gene

  • This gene encodes the XG blood group antigen, and is located at the pseudoautosomal boundary on the short (p) arm of chromosome X. The three 5' exons reside in the pseudoautosomal region and the remaining exons within the X-specific end. A truncated copy of this gene is found on the Y chromosome at the pseudoautosomal boundary. It is transcribed, but not expected to make a Y-chromosome specific gene product. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

GeneCards Summary for XG Gene

XG (Xg Blood Group) is a Protein Coding gene. Diseases associated with XG include color blindness.

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

Genomics for XG Gene

Regulatory Elements for XG Gene

Genomic Location for XG Gene

2,752,028 bp from pter
2,816,500 bp from pter
64,473 bases
Plus strand

Genomic View for XG Gene

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

RefSeq DNA sequence for XG Gene

Proteins for XG Gene

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

    Protein Symbol:
    Recommended name:
    Glycoprotein Xg
    Protein Accession:
    Secondary Accessions:
    • E9PCH1
    • Q496N8
    • Q496N9
    • Q496P0
    • Q71BZ5

    Protein attributes for XG Gene

    180 amino acids
    Molecular mass:
    19723 Da
    Quaternary structure:
    No Data Available
    • The gene coding for this protein is located in the pseudoautosomal region 1 (PAR1) of X and Y chromosomes

    Alternative splice isoforms for XG Gene


neXtProt entry for XG Gene

Proteomics data for XG Gene at MOPED

Post-translational modifications for XG Gene

Other Protein References for XG Gene

No data available for DME Specific Peptides for XG Gene

Domains for XG Gene

Gene Families for XG Gene

Protein Domains for XG Gene


Suggested Antigen Peptide Sequences for XG Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the CD99 family.
  • Belongs to the CD99 family.
genes like me logo Genes that share domains with XG: view

Function for XG Gene

Gene Ontology (GO) - Molecular Function for XG Gene

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

Animal Model Products

miRNA Products

Inhibitory RNA Products

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

In Situ Assay Products

Flow Cytometry Products

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

Localization for XG Gene

Subcellular locations from UniProtKB/Swiss-Prot for XG Gene

Cell membrane; Single-pass type I membrane protein.

Subcellular locations from

Jensen Localization Image for XG Gene COMPARTMENTS Subcellular localization image for XG gene
Compartment Confidence
plasma membrane 5
extracellular 3
endoplasmic reticulum 1
lysosome 1
mitochondrion 1

Gene Ontology (GO) - Cellular Components for XG Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005887 integral component of plasma membrane IDA 7533029
genes like me logo Genes that share ontologies with XG: view

Pathways for XG Gene

SuperPathways for XG Gene

No Data Available

Interacting Proteins for XG Gene

Gene Ontology (GO) - Biological Process for XG Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0008150 biological_process ND --
genes like me logo Genes that share ontologies with XG: view

No data available for Pathways by source for XG Gene

Transcripts for XG Gene

Unigene Clusters for XG Gene

Xg blood group:
Representative Sequences:

miRNA Products

Inhibitory RNA Products

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

Flow Cytometry Products

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

No ASD Table

Relevant External Links for XG Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for XG Gene

mRNA expression in normal human tissues for XG Gene

mRNA differential expression in normal tissues according to GTEx for XG Gene

This gene is overexpressed in Skin - Sun Exposed (Lower leg) (9.1), Skin - Not Sun Exposed (Suprapubic) (7.7), and Adipose - Subcutaneous (4.3).

Protein differential expression in normal tissues for XG Gene

This gene is overexpressed in Heart (68.9).

Integrated Proteomics: protein expression from ProteomicsDB and MOPED for XG Gene

SOURCE GeneReport for Unigene cluster for XG Gene Hs.179675

mRNA Expression by UniProt/SwissProt for XG Gene

Tissue specificity: Expressed in erythroid tissues, including thymus, bone marrow and fetal liver, and in several nonerythroid tissues, such as heart, placenta, skeletal muscle, thyroid and trachea, as well as in skin fibroblasts. Expression is low or undetectable in other tissues.
genes like me logo Genes that share expressions with XG: view

Expression partners for XG 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 for XG Gene

Orthologs for XG Gene

This gene was present in the common ancestor of mammals.

Orthologs for XG Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia XG 35
  • 67.71 (n)
  • 58.64 (a)
XG 36
  • 60 (a)
(Pan troglodytes)
Mammalia XG 35
  • 98.8 (n)
  • 99.49 (a)
XG 36
  • 99 (a)
(Canis familiaris)
Mammalia XG 36
  • 67 (a)
(Monodelphis domestica)
Mammalia XG 36
  • 53 (a)
Species with no ortholog for XG:
  • 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)
  • 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)
  • 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 XG Gene

Gene Tree for XG (if available)
Gene Tree for XG (if available)

Paralogs for XG Gene Pseudogenes for XG Gene

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

No data available for Paralogs for XG Gene

Variants for XG Gene

Polymorphic Variants from UniProtKB/Swiss-Prot for XG Gene

XG is responsible for the Xg blood group system

Sequence variations from dbSNP and Humsavar for XG Gene

SNP ID Clin Chr 0X pos Sequence Context AA Info Type MAF
rs3671 -- 2,815,627(-) TCAAA(C/T)TGCAC utr-variant-3-prime
rs3672 -- 2,815,600(-) CACAT(C/T)TGAGA utr-variant-3-prime
rs3674 -- 2,815,605(-) GAATC(C/T)ACATT utr-variant-3-prime
rs311165 -- 2,781,514(+) catat(A/C)tccac intron-variant
rs311166 -- 2,789,937(+) agcct(C/T)gaact intron-variant

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

Variant ID Type Subtype PubMed ID
esv29996 CNV Loss 17803354
dgv2432e1 CNV Complex 17122850
esv2752318 CNV Gain 17911159
esv29994 CNV Gain 17803354
esv34985 CNV Gain 17911159
esv2739881 CNV Deletion 23290073
esv2739882 CNV Deletion 23290073
esv268976 CNV Insertion 20981092
dgv1392e199 CNV Deletion 23128226
esv2739883 CNV Deletion 23290073
nsv516388 CNV Gain 19592680
nsv526612 CNV Loss 19592680
dgv264e55 CNV Gain 17911159
essv21575 CNV CNV 17122850
essv3621 CNV CNV 17122850
nsv510521 CNV Loss 20534489

Relevant External Links for XG Gene

HapMap Linkage Disequilibrium report
Locus Specific Mutation Databases (LSDB)
Blood Group Antigen Gene Mutation Database (BGMUT)
Blood Group

Disorders for XG Gene

MalaCards: The human disease database

MalaCards: The human disease database.

Search for XG Gene in MalaCards »

(1) Disease for XG Gene

(3) University of Copenhagen DISEASES for XG Gene

Genatlas disease for XG Gene

Xg blood group
genes like me logo Genes that share disorders with XG: view

No data available for OMIM , UniProtKB/Swiss-Prot , Novoseek inferred disease relationships and External Links for XG Gene

Publications for XG Gene

  1. Cloning of PBDX, an MIC2-related gene that spans the pseudoautosomal boundary on chromosome Xp. (PMID: 8054981) Ellis N.A. … Weller P. (Nat. Genet. 1994) 2 3 4
  2. Quantitative analysis of XG blood group and CD99 antigens on human red cells. (PMID: 10941840) Fouchet C. … Lopez C. (Immunogenetics 2000) 3 23
  3. PBDX is the XG blood group gene. (PMID: 7533029) Ellis N.A. … Banting G. (Nat. Genet. 1994) 3 4
  4. A study of the coregulation and tissue specificity of XG and MIC2 gene expression in eukaryotic cells. (PMID: 10688843) Fouchet C. … Lopez C. (Blood 2000) 3 4
  5. X-linked ichthyosis, due to steroid sulphatase deficiency, associated with Kallmann syndrome (hypogonadotropic hypogonadism and anosmia): linkage relationships with Xg and cloned DNA sequences from the distal short arm of the X chromosome. (PMID: 3007328) Ballabio A. … Andria G. (Hum. Genet. 1986) 3

Products for XG Gene

Sources for XG Gene

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