ERCC6

protein-coding

ERCC excision repair 6, chromatin remodeling factor, the group of ERCC excision repair associated|B-WICH chromatin-remodelling complex subunits

Gene summary

This gene encodes a DNA-binding protein that is important in transcription-coupled excision repair. The encoded protein has ATP-stimulated ATPase activity, interacts with several transcription and excision repair proteins, and may promote complex formation at DNA repair sites. Mutations in this gene are associated with Cockayne syndrome type B and cerebrooculofacioskeletal syndrome 1. Alternative splicing occurs between a splice site from exon 5 of this gene to the 3' splice site upstream of the open reading frame (ORF) of the adjacent gene, piggyback-derived-3 (GeneID:267004), which activates the alternative polyadenylation site downstream of the piggyback-derived-3 ORF. The resulting transcripts encode a fusion protein that shares sequence with the product of each individual gene. [provided by RefSeq, Mar 2016]

Previous symbols:
  • CKN2

MANE transcript

NM_000124.4

Inheritance

AR, AD

ClinVar variants

P:396U:487B:711

Top phenotype

Premature ovarian failure 11; Xeroderma Pigmentosum-Cockayne Syndrome; De Sanctis-Cacchione syndrome

gnomAD constraint

pLI —, LoF o/e 0.63

Max pathogenic AF

—

Genomic locus

chr10:49,454,168-49,539,538

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~85.4 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

UV-sensitive syndromeSUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0015797

Submitter: Orphanet

Cockayne spectrum with or without cerebrooculofacioskeletal syndromeSTRONG

Inheritance Pattern: AR

Disease ID:MONDO:0100506

Submitter: PanelApp Australia

Cockayne syndrome type 2DEFINITIVE

Inheritance Pattern: AR

Disease ID:MONDO:0019570

Submitter: G2P

Cockayne syndrome type 2STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0019570

Submitter: Genomics England PanelApp

COFS syndromeSUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0008926

Submitter: Orphanet

Cockayne spectrum with or without cerebrooculofacioskeletal syndromeDEFINITIVE

Inheritance Pattern: AR

Disease ID:MONDO:0100506

Submitter: ClinGen

The ERCC6 gene is located on chromosome 10 at 10q11.23 and encodes the Excision Repair 6, Chromatin Remodeling Factor protein, a DNA-binding protein that is important in transcription-coupled excision repair. ERCC6 was first reported in relation to autosomal recessive Cockayne spectrum with or without cerebrooculofacioskeletal syndrome in 1992 (Troelstra et al., PMID:1339317). Cockayne spectrum with or without cerebrooculofacioskeletal syndrome is characterized by growth failure at birth, with little or no postnatal neurologic development in addition to congenital cataracts or other structural anomalies of the eye, early postnatal contractures of the spine (kyphosis, scoliosis) and joints, and death usually occurring by age five years. This term lumps Cockayne syndrome type 2/B (CSB), cerebrooculofacioskeletal syndrome 1 (COFS syndrome), and De Sanctis-Cacchione syndrome into a spectrum of disease. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found differences in inheritance pattern and/or phenotypic variability. Therefore, the following disease entities have been split into multiple disease entities, Cockayne spectrum with or without cerebrooculofacioskeletal syndrome (OMIM: 133540, 214150, 278800), premature ovarian failure 11 (OMIM: 616946), UV-sensitive syndrome 1 (OMIM: 600630), and susceptibilities to [lung] cancer (OMIM: 211980) and age-related macular degeneration (OMIM: 613761). 10 variants (nonsense, frameshift, canonical splice site, and inframe indel) that have been reported in 5 probands in 4 publications (Mallery et al., 1998, PMID:9443879; Colella et al., 1999, PMID:10196384; Laugel et al., 2010, PMID:19894250; Zhang et al., 2020, PMID:31558084) are included in this curation. More evidence is available in the literature, but the maximum score for genetic evidence (12 pts.) has been reached. The mechanism of pathogenicity is known to be LOF. This gene-disease relationship is also supported by experimental evidence (animal models, functional and phenotypic rescue, in vitro functional assays, and biochemical function) (Van der Horst et al., 1997, PMID: 9150142; Bradsher et al., 2002, PMID:12419226; Ciaffardini et al., 2014, PMID:24874740; Wang et al., 2014, PMID:25249633). One mouse model recapitulates some characteristic phenotypes of Cockayne syndrome, while both rRNA rates of transcription and UV-sensitivity are rescued in other models. It was also demonstrated that ERCC6 is essential to neuronal differentiation & neuritogenesis, consistent with delayed neurologic development seen in patients. Additionally, transcription-coupled repair of UV damage was shown to be inhibited by variants in ERCC6. In summary, ERCC6 is definitively associated with autosomal recessive Cockayne spectrum with or without cerebrooculofacioskeletal syndrome. This has been repeatedly demonstrated in both the research and clinical diagnostic settings, and has been upheld over time. This classification was approved by the ClinGen Syndromic Disorders Gene Curation Expert Panel on the meeting date July 15, 2022 (SOP Version 9).

Cockayne syndrome type 2STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0019570

Submitter: Labcorp Genetics (formerly Invitae)

premature ovarian failure 11LIMITED

Inheritance Pattern: Unknown

Disease ID:MONDO:0014843

Submitter: Labcorp Genetics (formerly Invitae)

Cockayne syndrome type 2SUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0019570

Submitter: Orphanet

Cockayne syndrome type 2DEFINITIVE

Inheritance Pattern: AR

Disease ID:MONDO:0019570

Submitter: Myriad Women's Health

UV-sensitive syndrome 1STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0010909

Submitter: Genomics England PanelApp

Clinical Genomic Database (CGD)

Premature ovarian failure 11; Xeroderma Pigmentosum-Cockayne Syndrome; De Sanctis-Cacchione syndromeAD/AR

Manifestation: Audiologic/Otolaryngologic; Craniofacial; Dermatologic; Endocrine; Gastrointestinal; Musculoskeletal; Neurologic; Obstetric; Oncologic; Ophthalmologic

Intervention: Audiologic/Otolaryngologic; Dermatologic; Gastrointestinal; Obstetric; Oncologic

Rationale: In Cockayne syndrome, periodic surveillance for manifestations affecting the audiologic, ophthalmologic, hepatic, and other systems can be beneficial; Metronidazole should be avoided due to concerns of hepatic failure; Some individuals with Xeroderma Pigmentosum-Cockayne Syndromecan have predisposition to skin cancer; Skin lesions can be treated (and possibly prevented in some cases) with a variety of methods, depending on the specific type of lesion; Sun/UV exposure (and other agents, such as tobacco smoke) should be avoided; Periodic surveillance for dermatologic manifestations can be beneficial; For Premature ovarian failure, genetic knowledge may be beneficial to allow interventions such as preserving eggs in women with premature ovarian insufficiency

Comments: Individuals with Cockayne syndrome without skin sensitivity have been described

Refs: 14246158; 5560051; 4211825; 4431498; 7264357; 3545087; 1372469; 9443879; 9777763; 10196384; 10767341; 10739753; 15486090; 18446857; 18628313;20456449; 20301571; 22466610; 26204423; 26218421Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ERCC6 variants in ClinVar

23 Conditions Cataloged
not providedTotal: 1619
Cockayne syndrome type 2Total: 339
Cerebrooculofacioskeletal syndrome 1Total: 248
Inborn genetic diseasesTotal: 195
not specifiedTotal: 185
Age related macular degeneration 5Total: 168
DE SANCTIS-CACCHIONE SYNDROMETotal: 158
Premature ovarian failure 11Total: 88

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_000124.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
8
clinvar
611
clinvar
2
clinvar
621
missense
4
clinvar
15
clinvar
471
clinvar
92
clinvar
6
clinvar
588
nonsense
65
clinvar
56
clinvar
5
clinvar
126
start loss
0
frameshift
133
clinvar
70
clinvar
1
clinvar
204
splice donor/acceptor (+/-2bp)
6
clinvar
47
clinvar
2
clinvar
55
Total20818848770381594

Highest pathogenic variant AF is 0.0002491679

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 26 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_000124.4RefSeqNP_000115.120MANE Select
ENST00000355832.10EnsemblENSP00000348089.520MANE Select
NM_001277058.2RefSeqNP_001263987.15MANE Plus Clinical
NM_001277059.2RefSeqNP_001263988.15Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
ercc6Danio rerio

Structure: post-vent region

Quality: curved

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Nucleotide excision repair - Homo sapiens (human)
  • B-WICH complex positively regulates rRNA expression
  • ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression
  • Positive epigenetic regulation of rRNA expression
  • DNA Repair

Biological Process

  • response to superoxide
  • transcription-coupled nucleotide-excision repair
  • base-excision repair
  • pyrimidine dimer repair
  • transcription elongation from RNA polymerase I promoter

Molecular Function

  • DNA binding
  • DNA helicase activity
  • chromatin binding
  • protein binding
  • ATP binding

Cellular Component

  • nucleus
  • nucleoplasm
  • nucleolus
  • transcription elongation factor complex

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000355832
Coding exons
20
Length
84171
Individuals with no LoFs
125530
Homozygous LoFs
0
Heterozygous LoFs
218
Defined
125748
p
0.000867
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.09817727800.9900.00004419799
Missense (PolyPhen)180230.320.781522861
Synonymous-0.8513182991.060.00001752876
Loss of Function2.964673.30.6270.00000459852

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000920.00092rare
Latino/Admixed American0.000640.00064rare
Ashkenazi Jewish00.0absent
East Asian0.000490.00049rare
Finnish0.00150.0015notable
European (Non-Finnish)0.00100.0010notable
South Asian0.000620.00062rare
Other0.000330.00033rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Essential factor involved in transcription-coupled nucleotide excision repair which allows RNA polymerase II-blocking lesions to be rapidly removed from the transcribed strand of active genes. Upon DNA-binding, it locally modifies DNA conformation by wrapping the DNA around itself, thereby modifying the interface between stalled RNA polymerase II and DNA. It is required for transcription-coupled repair complex formation. It recruits the CSA complex (DCX(ERCC8) complex), nucleotide excision repair proteins and EP300 to the at sites of RNA polymerase II- blocking lesions. {ECO:0000269|PubMed:15548521, ECO:0000269|PubMed:16916636, ECO:0000269|PubMed:20541997, ECO:0000269|PubMed:22483866}.;
Disease
DISEASE: Cockayne syndrome B (CSB) [MIM:133540]: A rare disorder characterized by cutaneous sensitivity to sunlight, abnormal and slow growth, cachectic dwarfism, progeroid appearance, progressive pigmentary retinopathy and sensorineural deafness. There is delayed neural development and severe progressive neurologic degeneration resulting in mental retardation. Two clinical forms are recognized: in the classical form or Cockayne syndrome type 1, the symptoms are progressive and typically become apparent within the first few years or life; the less common Cockayne syndrome type 2 is characterized by more severe symptoms that manifest prenatally. Cockayne syndrome shows some overlap with certain forms of xeroderma pigmentosum. Unlike xeroderma pigmentosum, patients with Cockayne syndrome do not manifest increased freckling and other pigmentation abnormalities in the skin and have no significant increase in skin cancer. {ECO:0000269|PubMed:10447254, ECO:0000269|PubMed:19894250, ECO:0000269|PubMed:9443879}. Note=The disease is caused by mutations affecting the gene represented in this entry.; DISEASE: Cerebro-oculo-facio-skeletal syndrome 1 (COFS1) [MIM:214150]: A disorder of prenatal onset characterized by microcephaly, congenital cataracts, facial dysmorphism, neurogenic arthrogryposis, growth failure and severe psychomotor retardation. COFS is considered to be part of the nucleotide-excision repair disorders spectrum that include also xeroderma pigmentosum, trichothiodystrophy and Cockayne syndrome. {ECO:0000269|PubMed:19894250}. Note=The disease is caused by mutations affecting the gene represented in this entry.; DISEASE: De Sanctis-Cacchione syndrome (DSC) [MIM:278800]: An autosomal recessive syndrome consisting of xeroderma pigmentosum associated with severe neurological and developmental involvement. In addition to the clinical signs of xeroderma pigmentosum, patients present with mental retardation, dwarfism, gonadal hypoplasia, microcephaly and various neurologic complications of early onset. Note=The disease is caused by mutations affecting the gene represented in this entry.; DISEASE: Macular degeneration, age-related, 5 (ARMD5) [MIM:613761]: A form of age-related macular degeneration, a multifactorial eye disease and the most common cause of irreversible vision loss in the developed world. In most patients, the disease is manifest as ophthalmoscopically visible yellowish accumulations of protein and lipid that lie beneath the retinal pigment epithelium and within an elastin-containing structure known as Bruch membrane. {ECO:0000269|PubMed:16754848}. Note=Disease susceptibility is associated with variations affecting the gene represented in this entry.; DISEASE: UV-sensitive syndrome 1 (UVSS1) [MIM:600630]: An autosomal recessive disorder characterized by cutaneous photosensitivity and mild freckling in the absence of neurological abnormalities or skin tumors. {ECO:0000269|PubMed:15486090}. Note=The disease is caused by mutations affecting the gene represented in this entry.;

Recessive Scores

pRec
0.469

Intolerance Scores

LoFtool
0.0666
RVIS EVS
1.49
RVIS percentile EVS
95.32

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.826

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumHigh
CancerMediumMediumMedium
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