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ERCC2 ERCC excision repair 2, TFIIH core complex helicase subunit [ Homo sapiens (human) ]

Gene ID: 2068, updated on 4-Jun-2026
Official Symbol
ERCC2provided by HGNC
Official Full Name
ERCC excision repair 2, TFIIH core complex helicase subunitprovided by HGNC
Primary source
HGNC:HGNC:3434
See related
Ensembl:ENSG00000104884 MIM:126340; AllianceGenome:HGNC:3434
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
EM9; TTD; XPD; CXPD; TTD1; COFS2; TFIIH
Summary
The nucleotide excision repair pathway is a mechanism to repair damage to DNA. The protein encoded by this gene is involved in transcription-coupled nucleotide excision repair and is an integral member of the basal transcription factor BTF2/TFIIH complex. The gene product has ATP-dependent DNA helicase activity and belongs to the RAD3/XPD subfamily of helicases. Defects in this gene can result in three different disorders, the cancer-prone syndrome xeroderma pigmentosum complementation group D, trichothiodystrophy, and Cockayne syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]
Expression
Ubiquitous expression in testis (RPKM 6.4), skin (RPKM 6.1) and 25 other tissues See more
Orthologs
Try the new Gene page
Try the new Transcripts and proteins table
See ERCC2 in Genome Data Viewer
Location:
19q13.32
Exon count:
25
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 19 NC_000019.10 (45349837..45370573, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 19 NC_060943.1 (48177079..48197811, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (45853095..45873831, complement)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene ReSE screen-validated silencer GRCh37_chr19:45811788-45811945 Neighboring gene heart enhancer 22 Neighboring gene creatine kinase, M-type Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10761 Neighboring gene ribosomal protein S16 pseudogene 9 Neighboring gene Sharpr-MPRA regulatory region 10062 Neighboring gene kinesin light chain 3 Neighboring gene ReSE screen-validated silencer GRCh37_chr19:45860553-45860719 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45872585-45873426 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14791 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45878599-45879436 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45879437-45880275 Neighboring gene protein phosphatase 1 regulatory subunit 13 like Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14792 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45894822-45895340 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45895341-45895857 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45901839-45902837 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10762 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10763 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45908213-45909008 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14794 Neighboring gene RNA polymerase I subunit G Neighboring gene ERCC excision repair 1, endonuclease non-catalytic subunit

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Associated conditions

Description Tests
Cerebrooculofacioskeletal syndrome 2
MedGen: C1853102 OMIM: 610756 GeneReviews: Not available
Compare labs
Trichothiodystrophy 1, photosensitive
MedGen: C1866504 OMIM: 601675 GeneReviews: Not available
Compare labs
Xeroderma pigmentosum, group D
MedGen: C0268138 OMIM: 278730 GeneReviews: Xeroderma Pigmentosum
Compare labs

EBI GWAS Catalog

Description
Genome-wide association study reveals novel genetic determinants of DNA repair capacity in lung cancer.
EBI GWAS Catalog

Protein interactions

Protein Gene Interaction Pubs
Rev rev HIV-1 Rev interacting protein, excision repair cross-complementing rodent repair deficiency, complementation group 2 (ERCC2), is identified by the in-vitro binding experiments involving cytosolic or nuclear extracts from HeLa cells PubMed
rev The interaction of Rev with ERCC2 is increased by the presence of RRE PubMed
Tat tat HIV-1 Tat interacts with the RNA polymerase II holoenzyme and transcription preinitiation complexes, which include TFIIH, during Tat-mediated transactivation of the HIV-1 LTR PubMed
tat Interaction of HIV-1 Tat with TFIIH stimulates phosphorylation of Ser-5 of the RNA polymerase II C-terminal domain (CTD), which in turn also stimulates co-transcriptional capping of HIV-1 mRNA PubMed
tat TFIIH interacts with HIV-1 Tat as a component of the HIV-1 transcription preinitiation complex, but is released from the elongation complex which includes P-TEFb PubMed
tat Amino acids 1-48 of HIV-1 Tat, which includes the Tat activation domain, mediate the binding of Tat to CAK and the TFIIH complex through a direct interaction with CDK7 and possibly other TFIIH subunits, including p62 and ERCC3 PubMed
tat CAK/TFIIH is required for HIV-1 Tat-mediated transactivation of the HIV-1 LTR promoter PubMed
tat TFIIH synergizes with HIV-1 Tat to induce transcription elongation from the HIV-1 LTR promoter PubMed

Go to the HIV-1, Human Interaction Database

Products Interactant Other Gene Complex Source Pubs Description

Markers

Clone Names

  • MGC102762, MGC126218, MGC126219

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables 5'-3' DNA helicase activity EXP
Inferred from Experiment
more info
PubMed 
enables 5'-3' DNA helicase activity IDA
Inferred from Direct Assay
more info
PubMed 
enables 5'-3' DNA helicase activity IEA
Inferred from Electronic Annotation
more info
 
enables 5'-3' DNA helicase activity TAS
Traceable Author Statement
more info
 
enables ATP binding IEA
Inferred from Electronic Annotation
more info
 
enables ATP hydrolysis activity EXP
Inferred from Experiment
more info
PubMed 
enables ATP hydrolysis activity IEA
Inferred from Electronic Annotation
more info
 
enables DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables DNA helicase activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables DNA helicase activity IEA
Inferred from Electronic Annotation
more info
 
enables damaged DNA binding IBA
Inferred from Biological aspect of Ancestor
more info
 
enables helicase activity IEA
Inferred from Electronic Annotation
more info
 
enables hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides IEA
Inferred from Electronic Annotation
more info
 
enables nucleic acid binding IEA
Inferred from Electronic Annotation
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables protein-macromolecule adaptor activity IPI
Inferred from Physical Interaction
more info
PubMed 
Process Evidence Code Pubs
involved_in DNA-templated transcription IEA
Inferred from Electronic Annotation
more info
 
involved_in apoptotic process IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in chromosome segregation IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in embryonic organ development IEA
Inferred from Electronic Annotation
more info
 
involved_in hair cell differentiation IEA
Inferred from Electronic Annotation
more info
 
involved_in hair cell differentiation IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in nucleotide-excision repair IEA
Inferred from Electronic Annotation
more info
 
involved_in nucleotide-excision repair IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in nucleotide-excision repair NAS
Non-traceable Author Statement
more info
PubMed 
involved_in positive regulation of mitotic recombination IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in regulation of mitotic cell cycle phase transition IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in regulation of transcription by RNA polymerase II IDA
Inferred from Direct Assay
more info
PubMed 
involved_in response to hypoxia IEA
Inferred from Electronic Annotation
more info
 
involved_in response to oxidative stress IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in transcription by RNA polymerase II IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in transcription by RNA polymerase II IDA
Inferred from Direct Assay
more info
PubMed 
involved_in transcription by RNA polymerase II TAS
Traceable Author Statement
more info
PubMed 
involved_in transcription initiation at RNA polymerase II promoter IDA
Inferred from Direct Assay
more info
PubMed 
involved_in transcription initiation at RNA polymerase II promoter NAS
Non-traceable Author Statement
more info
PubMed 
involved_in transcription-coupled nucleotide-excision repair IDA
Inferred from Direct Assay
more info
PubMed 
involved_in transcription-coupled nucleotide-excision repair TAS
Traceable Author Statement
more info
 
Component Evidence Code Pubs
part_of CAK-ERCC2 complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of MMXD complex IDA
Inferred from Direct Assay
more info
PubMed 
located_in cytoplasm IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleoplasm IDA
Inferred from Direct Assay
more info
 
located_in nucleoplasm TAS
Traceable Author Statement
more info
 
located_in nucleus EXP
Inferred from Experiment
more info
PubMed 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in nucleus IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleus IEA
Inferred from Electronic Annotation
more info
 
located_in spindle IDA
Inferred from Direct Assay
more info
PubMed 
located_in spindle IEA
Inferred from Electronic Annotation
more info
 
part_of transcription factor TFIID complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of transcription factor TFIIH core complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of transcription factor TFIIH core complex IEA
Inferred from Electronic Annotation
more info
 
part_of transcription factor TFIIH holo complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of transcription factor TFIIH holo complex IPI
Inferred from Physical Interaction
more info
PubMed 
part_of transcription factor TFIIH holo complex TAS
Traceable Author Statement
more info
PubMed 
Preferred Names
general transcription and DNA repair factor IIH helicase subunit XPD
Names
BTF2 p80
DNA 5'-3' helicase XPD
DNA excision repair protein ERCC-2
DNA repair protein complementing XP-D cells
TFIIH 80 kDa subunit
TFIIH basal transcription factor complex 80 kDa subunit
TFIIH basal transcription factor complex helicase XPD subunit
TFIIH p80
TFIIH subunit XPD
basic transcription factor 2 80 kDa subunit
excision repair cross-complementation group 2
excision repair cross-complementing rodent repair deficiency, complementation group 2
xeroderma pigmentosum complementary group D
xeroderma pigmentosum group D-complementing protein
NP_000391.1
NP_001124339.1
NP_001427284.1
NP_001427285.1
NP_001427286.1

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_007067.2 RefSeqGene

    Range
    5001..24197
    Download
    GenBank, FASTA, Sequence Viewer (Graphics), LRG_461

mRNA and Protein(s)

  1. NM_000400.4NP_000391.1  general transcription and DNA repair factor IIH helicase subunit XPD isoform 1

    See identical proteins and their annotated locations for NP_000391.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longer isoform (1).
    Source sequence(s)
    BC108255, CN388234, DA409300, L47234
    Consensus CDS
    CCDS33049.1
    UniProtKB/Swiss-Prot
    P18074, Q2TB78, Q2YDY2, Q7KZU6, Q8N721
    UniProtKB/TrEMBL
    A8MX75
    Related
    ENSP00000375809.4, ENST00000391945.10
    Conserved Domains (1) summary
    TIGR00604
    Location:7708
    rad3; DNA repair helicase (rad3)
  2. NM_001130867.2NP_001124339.1  general transcription and DNA repair factor IIH helicase subunit XPD isoform 2

    See identical proteins and their annotated locations for NP_001124339.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) has an additional segment in the 5' region, which results in a downstream AUG start codon, and lacks multiple 3' exons but has an alternate 3' exon, as compared to variant 1. The resulting isoform (2) has a shorter N-terminus and a distinct and shorter C-terminus, as compared to isoform 1.
    Source sequence(s)
    AL535248, BC008346, BG719746, BT006883, DA409300
    Consensus CDS
    CCDS46112.1
    UniProtKB/TrEMBL
    A0A804HL97
    Related
    ENSP00000431229.2, ENST00000485403.6
    Conserved Domains (2) summary
    smart00488
    Location:1256
    DEXDc2; DEAD-like helicases superfamily
    pfam06777
    Location:248389
    HBB; Helical and beta-bridge domain
  3. NM_001440355.1NP_001427284.1  general transcription and DNA repair factor IIH helicase subunit XPD isoform 3

    Status: REVIEWED

    Source sequence(s)
    L47234
    UniProtKB/TrEMBL
    A8MX75
    Related
    ENSP00000375805.2, ENST00000391941.6
  4. NM_001440356.1NP_001427285.1  general transcription and DNA repair factor IIH helicase subunit XPD isoform 4

    Status: REVIEWED

    Source sequence(s)
    L47234
    UniProtKB/TrEMBL
    A8MX75
    Related
    ENSP00000561983.1, ENST00000891924.1
  5. NM_001440357.1NP_001427286.1  general transcription and DNA repair factor IIH helicase subunit XPD isoform 5

    Status: REVIEWED

    Source sequence(s)
    L47234
    UniProtKB/TrEMBL
    A0A804HK53, A8MX75
    Related
    ENSP00000507775.1, ENST00000684407.1

RNA

  1. NR_199645.1 RNA Sequence

    Status: REVIEWED

    Source sequence(s)
    L47234
    Related
    ENST00000684218.1
  2. NR_199646.1 RNA Sequence

    Status: REVIEWED

    Source sequence(s)
    L47234
  3. NR_199647.1 RNA Sequence

    Status: REVIEWED

    Source sequence(s)
    L47234

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p14 Primary Assembly

    Range
    45349837..45370573 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060943.1 Alternate T2T-CHM13v2.0

    Range
    48177079..48197811 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)