| ERCC2 | 
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| Identifiers | 
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| Aliases | ERCC2, excision repair cross-complementation group 2, COFS2, EM9, TFIIH, TTD, XPD, TTD1, ERCC excision repair 2, TFIIH core complex helicase subunit | 
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| External IDs | OMIM: 126340; MGI: 95413; HomoloGene: 344; GeneCards: ERCC2; OMA:ERCC2 - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 7 (mouse) | 
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 |  |  | Band | 7 A3|7 9.62 cM | Start | 19,115,935 bp | 
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 | End | 19,129,619 bp | 
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| | Gene ontology | 
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 | Molecular function |  |  | Cellular component |  |  | Biological process | 
termination of RNA polymerase I transcriptionregulation of mitotic cell cycle phase transitionbone mineralizationhair cycle processresponse to hypoxiaregulation of transcription, DNA-templatedembryonic cleavagehair follicle maturationmulticellular organism growthchromosome segregationtranscription initiation from RNA polymerase I promotertranscription elongation from RNA polymerase II promoterhair cell differentiationageingextracellular matrix organizationin utero embryonic development7-methylguanosine mRNA cappingtranscription by RNA polymerase IIpost-embryonic developmentresponse to oxidative stresstranscription, DNA-templatedcellular response to DNA damage stimuluspositive regulation of transcription, DNA-templatedglobal genome nucleotide-excision repairhematopoietic stem cell differentiationspinal cord developmentUV protectionpositive regulation of DNA bindingcentral nervous system myelin formationtranscription-coupled nucleotide-excision repairtranscription initiation from RNA polymerase II promotercell population proliferationnucleotide-excision repair, DNA incisionnucleobase-containing compound metabolic processresponse to UVpositive regulation of transcription by RNA polymerase IIskin developmenterythrocyte maturationapoptotic processnucleotide-excision repairnucleotide-excision repair, preincision complex stabilizationDNA repairviral processprotein phosphorylationnucleotide-excision repair, preincision complex assemblynucleotide-excision repair, DNA incision, 5'-to lesionembryonic organ developmentDNA duplex unwindingregulation of mitotic recombinationnucleotide-excision repair, DNA duplex unwindingpositive regulation of mitotic recombinationnucleotide-excision repair, DNA incision, 3'-to lesiontranscription elongation from RNA polymerase I promoter
 |  | Sources:Amigo / QuickGO | 
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| Wikidata | 
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TFIIH subunit XPD is a protein that in humans is encoded by the ERCC2 (ERCC excision repair 2) gene.  It is a component of the general transcription and DNA repair factor IIH (TFIIH) core complex involved in transcription-coupled nucleotide excision repair.
Along with XPB, XPD is a part of human transcriptional initiation factor TFIIH and has ATP-dependent helicase activity. It belongs to the RAD3/XPD subfamily of helicases.
The XPD (ERCC2) gene encodes for a 2.3-kb mRNA containing 22 exons and 21 introns. The XPD protein contains 760 amino acids and is a polypeptide with a size of 87kDa. Defects in this gene can result in three different disorders: the cancer-prone syndrome xeroderma pigmentosum complementation group D, photosensitive trichothiodystrophy, and Cockayne syndrome.
XPD is essential for the viability of cells. Deletion of XPD in mice is lethal for developing embryos.
XPD helicase is also employed in p53-mediated apoptotic cell death.