Free for academic non-profit institutions. Other users need a Commercial license

Aliases for XPA Gene

Aliases for XPA Gene

  • XPA, DNA Damage Recognition And Repair Factor 2 3 5
  • Xeroderma Pigmentosum Group A-Complementing Protein 3 4
  • Xeroderma Pigmentosum, Complementation Group A 2 3
  • XPAC 3 4
  • Mutant Xeroderma Pigmentosum Complementation Group A 3
  • DNA Repair Protein Complementing XP-A Cells 3
  • Excision Repair-Controlling 3
  • XP1 3

External Ids for XPA Gene

Previous GeneCards Identifiers for XPA Gene

  • GC09M091262
  • GC09M092180
  • GC09M093874
  • GC09M095817
  • GC09M097516
  • GC09M099477
  • GC09M100437
  • GC09M070038

Summaries for XPA Gene

Entrez Gene Summary for XPA Gene

  • This gene encodes a zinc finger protein involved in DNA excision repair. The encoded protein is part of the NER (nucleotide excision repair) complext which is responsible for repair of UV radiation-induced photoproducts and DNA adducts induced by chemical carcinogens. Mutations in this gene are associated with xeroderma pigmentosum complementation group A. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2009]

GeneCards Summary for XPA Gene

XPA (XPA, DNA Damage Recognition And Repair Factor) is a Protein Coding gene. Diseases associated with XPA include Xeroderma Pigmentosum, Group A and Xpa-Related Xeroderma Pigmentosum. Among its related pathways are Nucleotide excision repair and Platinum drug resistance. GO annotations related to this gene include protein homodimerization activity and damaged DNA binding.

UniProtKB/Swiss-Prot for XPA Gene

  • Involved in DNA excision repair. Initiates repair by binding to damaged sites with various affinities, depending on the photoproduct and the transcriptional state of the region. Required for UV-induced CHEK1 phosphorylation and the recruitment of CEP164 to cyclobutane pyrimidine dimmers (CPD), sites of DNA damage after UV irradiation.

Gene Wiki entry for XPA Gene

No data available for CIViC summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for XPA Gene

Genomics for XPA Gene

Regulatory Elements for XPA Gene

Enhancers for XPA Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH09G097918 1.8 FANTOM5 ENCODE dbSUPER 11.4 -223.8 -223829 5.9 CREB3L1 AGO1 ZFP64 FEZF1 DMAP1 YY1 ZNF416 ZNF143 SP3 NFYC NCBP1 TRMO ZNF322P1 ANP32B ENSG00000236896 HEMGN MFSD14C RNU6-918P XPA ZNF782
GH09G098117 1.7 FANTOM5 ENCODE dbSUPER 11.9 -422.8 -422817 5.6 PKNOX1 FOXA2 MLX ARID4B SIN3A DMAP1 ZNF2 ZBTB7B YY1 SLC30A9 NCBP1 ZNF322P1 CORO2A CCDC180 ENSG00000254633 LOC105376171 XPA TBC1D2 TRIM14 TRMO
GH09G098221 1.9 FANTOM5 Ensembl ENCODE dbSUPER 10.5 -531.0 -530981 14.8 HDGF PKNOX1 FOXA2 CREB3L1 ARNT ARID4B FEZF1 DMAP1 YY1 ZNF766 TBC1D2 CORO2A NCBP1 TRIM14 XPA CCDC180 MIR6854
GH09G097873 1.7 VISTA Ensembl ENCODE 10.5 -178.7 -178673 4.3 PKNOX1 FOXA2 SIN3A TCF12 ZNF143 FOS DEK ZNF263 SP5 REST FOXE1 TRMO ZNF322P1 ZNF782 NCBP1 XPA CCDC180 GC09P097870 GC09P097916
GH09G097510 1.5 Ensembl ENCODE dbSUPER 11.8 +186.1 186131 2.1 HDGF PKNOX1 TCF12 FOS YY2 JUNB TSHZ1 ZNF662 TBX21 SMARCA4 ZNF510 LOC105376168 ENSG00000224848 ZNF322P1 XPA LOC441455 CCDC180 NCBP1 TMOD1
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around XPA on UCSC Golden Path with GeneCards custom track

Promoters for XPA Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters
ENSR00000238537 409 1601 HDGF CREB3L1 ZFP64 ARID4B SIN3A DMAP1 ZNF2 YY1 ZNF143 ZNF207

Genomic Location for XPA Gene

97,654,398 bp from pter
97,697,409 bp from pter
43,012 bases
Minus strand

Genomic View for XPA Gene

Genes around XPA on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
XPA Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for XPA Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for XPA Gene

Proteins for XPA Gene

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

    Protein Symbol:
    Recommended name:
    DNA repair protein complementing XP-A cells
    Protein Accession:
    Secondary Accessions:
    • Q5T1U9
    • Q6LCW7
    • Q6LD02

    Protein attributes for XPA Gene

    273 amino acids
    Molecular mass:
    31368 Da
    Quaternary structure:
    • Interacts with GPN1. Interacts with RPA1 and RPA2; the interaction is direct and associates XPA with the RPA complex. Interacts (via N-terminus) with CEP164 upon UV irradiation. Interacts with HERC2.

    Three dimensional structures from OCA and Proteopedia for XPA Gene

neXtProt entry for XPA Gene

Post-translational modifications for XPA Gene

  • ATR-dependent phosphorylation of XPA at Ser-196 is important for cell survival in response to UV damage.
  • Ubiquitinated by HERC2 leading to degradation by the proteasome.
  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for XPA Gene

Antibody Products

  • Cell Signaling Technology (CST) Antibodies for XPA (XPA)

No data available for DME Specific Peptides for XPA Gene

Domains & Families for XPA Gene

Gene Families for XPA Gene

Protein Domains for XPA Gene

Suggested Antigen Peptide Sequences for XPA Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



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

Function for XPA Gene

Molecular function for XPA Gene

GENATLAS Biochemistry:
complementing repair defect in UV irradiated xeroderma pigmentation group A cells,yeast RAD14 homolog
UniProtKB/Swiss-Prot Function:
Involved in DNA excision repair. Initiates repair by binding to damaged sites with various affinities, depending on the photoproduct and the transcriptional state of the region. Required for UV-induced CHEK1 phosphorylation and the recruitment of CEP164 to cyclobutane pyrimidine dimmers (CPD), sites of DNA damage after UV irradiation.

Gene Ontology (GO) - Molecular Function for XPA Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003677 DNA binding IEA --
GO:0003684 damaged DNA binding IDA 7700386
GO:0005515 protein binding IPI 7700386
GO:0019904 protein domain specific binding IPI 17720715
GO:0042803 protein homodimerization activity IPI 8197175
genes like me logo Genes that share ontologies with XPA: view
genes like me logo Genes that share phenotypes with XPA: view

Human Phenotype Ontology for XPA Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for XPA Gene

MGI Knock Outs for XPA:

Animal Model Products

CRISPR Products

miRNA for XPA Gene

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targets and HOMER Transcription for XPA Gene

Localization for XPA Gene

Subcellular locations from UniProtKB/Swiss-Prot for XPA Gene


Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for XPA gene
Compartment Confidence
nucleus 5
extracellular 4
cytosol 3
golgi apparatus 2

Gene Ontology (GO) - Cellular Components for XPA Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000110 nucleotide-excision repair factor 1 complex IBA --
GO:0005634 nucleus IDA 1601884
GO:0005654 nucleoplasm TAS --
GO:0005662 colocalizes_with DNA replication factor A complex IDA 7700386
GO:0005737 cytoplasm IEA --
genes like me logo Genes that share ontologies with XPA: view

Pathways & Interactions for XPA Gene

genes like me logo Genes that share pathways with XPA: view

Pathways by source for XPA Gene

1 GeneGo (Thomson Reuters) pathway for XPA Gene

SIGNOR curated interactions for XPA Gene

Is activated by:
Is inactivated by:

Gene Ontology (GO) - Biological Process for XPA Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000715 nucleotide-excision repair, DNA damage recognition IBA --
GO:0000717 nucleotide-excision repair, DNA duplex unwinding TAS --
GO:0006281 DNA repair IEA,IMP 1601884
GO:0006283 transcription-coupled nucleotide-excision repair TAS --
GO:0006284 base-excision repair IBA --
genes like me logo Genes that share ontologies with XPA: view

Drugs & Compounds for XPA Gene

(10) Drugs for XPA Gene - From: PharmGKB and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Platinum compounds Pharma 0

(7) Additional Compounds for XPA Gene - From: Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
genes like me logo Genes that share compounds with XPA: view

Transcripts for XPA Gene

Unigene Clusters for XPA Gene

Xeroderma pigmentosum, complementation group A:
Representative Sequences:

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

No ASD Table

Relevant External Links for XPA Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for XPA Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for XPA Gene

Protein differential expression in normal tissues from HIPED for XPA Gene

This gene is overexpressed in CD8 Tcells (21.2), Platelet (9.1), Blymphocyte (7.2), and Peripheral blood mononuclear cells (6.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for XPA Gene

Protein tissue co-expression partners for XPA Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of XPA Gene:


SOURCE GeneReport for Unigene cluster for XPA Gene:


mRNA Expression by UniProt/SwissProt for XPA Gene:

Tissue specificity: Expressed in various cell lines and in skin fibroblasts.

Evidence on tissue expression from TISSUES for XPA Gene

  • Skin(3)
  • Liver(2.3)
  • Lung(2.3)
  • Nervous system(2.1)
  • Kidney(2)

Phenotype-based relationships between genes and organs from Gene ORGANizer for XPA Gene

Germ Layers:
  • ectoderm
  • mesoderm
  • cardiovascular
  • immune
  • integumentary
  • nervous
  • skeletal muscle
  • skeleton
Head and neck:
  • brain
  • eye
  • eyelid
  • face
  • head
  • skull
  • blood vessel
  • peripheral nerve
  • peripheral nervous system
  • skin
  • spinal cord
genes like me logo Genes that share expression patterns with XPA: view

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

Orthologs for XPA Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for XPA Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia XPA 34 35
  • 99.63 (n)
(Canis familiaris)
Mammalia XPA 34 35
  • 90.6 (n)
(Bos Taurus)
Mammalia XPA 34 35
  • 90.35 (n)
(Mus musculus)
Mammalia Xpa 34 16 35
  • 82.95 (n)
(Rattus norvegicus)
Mammalia Xpa 34
  • 82.51 (n)
(Monodelphis domestica)
Mammalia XPA 35
  • 80 (a)
(Ornithorhynchus anatinus)
Mammalia XPA 35
  • 79 (a)
(Gallus gallus)
Aves XPA 34 35
  • 69.95 (n)
(Anolis carolinensis)
Reptilia XPA 35
  • 69 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia xpa 34
  • 69.7 (n)
Str.11835 34
African clawed frog
(Xenopus laevis)
Amphibia XPAC 34
(Danio rerio)
Actinopterygii xpa 34 35
  • 65.66 (n)
zgc63640 34
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP007566 34
  • 52.34 (n)
fruit fly
(Drosophila melanogaster)
Insecta Xpac 36 34 35
  • 50.55 (n)
(Caenorhabditis elegans)
Secernentea xpa-1 34 35
  • 54.44 (n)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes RAD14 35 37
  • 19 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 35
  • 39 (a)
Species where no ortholog for XPA was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • 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)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • 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)
  • wheat (Triticum aestivum)

Evolution for XPA Gene

Gene Tree for XPA (if available)
Gene Tree for XPA (if available)

Paralogs for XPA Gene

No data available for Paralogs for XPA Gene

Variants for XPA Gene

Sequence variations from dbSNP and Humsavar for XPA Gene

SNP ID Clin Chr 09 pos Sequence Context AA Info Type
rs104894131 Pathogenic, Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700] 97,689,600(-) AGAAT(G/T)TGGGA nc-transcript-variant, reference, missense
rs144725456 Uncertain significance, Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700] 97,675,530(+) ACTCA(C/T)GTTGA nc-transcript-variant, reference, missense
rs746617574 Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700] 97,687,096(+) GAGAC(C/G)TGTAA nc-transcript-variant, reference, missense
VAR_007727 Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700]
VAR_007729 Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700]

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

Variant ID Type Subtype PubMed ID
nsv1043753 CNV gain 25217958

Variation tolerance for XPA Gene

Residual Variation Intolerance Score: 81.9% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 2.54; 44.30% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for XPA Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

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

Disorders for XPA Gene

MalaCards: The human disease database

(19) MalaCards diseases for XPA Gene - From: OMIM, ClinVar, GeneTests, Swiss-Prot, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
xeroderma pigmentosum, group a
  • xeroderma pigmentosum group a
xpa-related xeroderma pigmentosum
xeroderma pigmentosum, variant type
  • de sanctis-cacchione syndrome
cockayne syndrome
  • cockayne's syndrome
trichothiodystrophy 1, photosensitive
  • photosensitive trichothiodystrophy
- elite association - COSMIC cancer census association via MalaCards
Search XPA in MalaCards View complete list of genes associated with diseases


  • Xeroderma pigmentosum complementation group A (XP-A) [MIM:278700]: An autosomal recessive pigmentary skin disorder characterized by solar hypersensitivity of the skin, high predisposition for developing cancers on areas exposed to sunlight and, in some cases, neurological abnormalities. The skin develops marked freckling and other pigmentation abnormalities. XP-A patients show the most severe skin symptoms and progressive neurological disorders. {ECO:0000269 PubMed:10447254, ECO:0000269 PubMed:1339397, ECO:0000269 PubMed:1372103, ECO:0000269 PubMed:8504220, ECO:0000269 PubMed:9671271}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Genatlas disease for XPA Gene

xeroderma pigmentosum,complementation group A

Relevant External Links for XPA

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with XPA: view

Publications for XPA Gene

  1. Pterygium and genetic polymorphisms of the DNA repair enzymes XRCC1, XPA, and XPD. (PMID: 20431719) Chiang C.C. … Tsai F.J. (Mol. Vis. 2010) 3 22 46 64
  2. UV-dependent interaction between Cep164 and XPA mediates localization of Cep164 at sites of DNA damage and UV sensitivity. (PMID: 19197159) Pan Y.R. … Lee E.Y. (Cell Cycle 2009) 3 4 22 64
  3. Common variations in ERCC2 are associated with response to cisplatin chemotherapy and clinical outcome in osteosarcoma patients. (PMID: 19434073) Caronia D. … GonzA!lez-Neira A. (Pharmacogenomics J. 2009) 3 22 46 64
  4. [Study on the relationship between polymorphisms of XPA gene and susceptibility of esophageal cancer]. (PMID: 19173862) Feng X.X. … Lu Z.X. (Zhonghua Liu Xing Bing Xue Za Zhi 2008) 3 22 46 64
  5. Single nucleotide polymorphisms in nucleotide excision repair genes XPA, XPD, XPG and ERCC1 in advanced colorectal cancer patients treated with first-line oxaliplatin/fluoropyrimidine. (PMID: 18204222) Monzo M. … Navarro-Vigo M. (Oncology 2007) 3 22 46 64

Products for XPA Gene

Sources for XPA Gene

Loading form....