rs587778281

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The ENST00000285398.7(ERCC3):​c.1421_1422insA​(p.Asp474GlufsTer2) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000985 in 1,614,100 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (β˜…β˜…). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ERCC3
ENST00000285398.7 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9O:1

Conservation

PhyloP100: 8.01
Variant links:
Genes affected
ERCC3 (HGNC:3435): (ERCC excision repair 3, TFIIH core complex helicase subunit) This gene encodes an ATP-dependent DNA helicase that functions in nucleotide excision repair. The encoded protein is a subunit of basal transcription factor 2 (TFIIH) and, therefore, also functions in class II transcription. Mutations in this gene are associated with Xeroderma pigmentosum B, Cockayne's syndrome, and trichothiodystrophy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-127280552-A-AT is Pathogenic according to our data. Variant chr2-127280552-A-AT is described in ClinVar as [Likely_pathogenic]. Clinvar id is 134130.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ERCC3NM_000122.2 linkuse as main transcriptc.1421_1422insA p.Asp474GlufsTer2 frameshift_variant 9/15 ENST00000285398.7 NP_000113.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ERCC3ENST00000285398.7 linkuse as main transcriptc.1421_1422insA p.Asp474GlufsTer2 frameshift_variant 9/151 NM_000122.2 ENSP00000285398 P1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000756
AC:
19
AN:
251350
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135840
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000102
AC:
149
AN:
1461868
Hom.:
0
Cov.:
32
AF XY:
0.000102
AC XY:
74
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000128
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000136
Hom.:
0
Bravo
AF:
0.0000604
EpiCase
AF:
0.000273
EpiControl
AF:
0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:9Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:4
Pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityMay 25, 2023- -
Likely pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMay 01, 2024ERCC3: PVS1, PM2:Supporting -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 15, 2023This sequence change creates a premature translational stop signal (p.Asp474Glufs*2) in the ERCC3 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ERCC3 are known to be pathogenic (PMID: 16947863). This variant is present in population databases (rs587778281, gnomAD 0.01%). This premature translational stop signal has been observed in individual(s) with xeroderma pigmentosa (PMID: 16947863). ClinVar contains an entry for this variant (Variation ID: 134130). For these reasons, this variant has been classified as Pathogenic. -
Likely pathogenic, criteria provided, single submitterclinical testingGeneDxNov 03, 2023Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Also known as c.1421_1422insA; This variant is associated with the following publications: (PMID: 26971583, 27356891, 31589614, 30414346, 29625052, 34308104, 24728327, 36451132, 36493725, 16947863) -
Xeroderma pigmentosum group B Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingCentre for Mendelian Genomics, University Medical Centre LjubljanaOct 08, 2019This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PVS1,PM2,PP5. -
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 01, 2006- -
Xeroderma pigmentosum Pathogenic:1
Pathogenic, criteria provided, single submittercurationSema4, Sema4Feb 23, 2022- -
Xeroderma pigmentosum group B;C4225344:Trichothiodystrophy 2, photosensitive Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsFeb 08, 2022- -
ERCC3-related disorder Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 16, 2024The ERCC3 c.1421dupA variant is predicted to result in a frameshift and premature protein termination (p.Asp474Glufs*2). This variant has been reported in an individual with xeroderma pigmentosum/Cockayne syndrome (Oh et al. 2006. PubMed ID: 16947863). This variant has also been reported in multiple individuals with various cancers including colorectal, endometrial, melanoma, and leukemia (Table 2, Dobbins et al. 2016. PubMed ID: 27356891; Table S1, Huang et al. 2018. PubMed ID: 29625052; Table 2, Potjer et al. 2019. PubMed ID: 30414346; Table S2, Kim et al. 2021. PubMed ID: 34308104). This variant is reported in 0.014% of alleles in individuals of European (non-Finnish) descent in gnomAD and it has been classified as pathogenic/likely pathogenic by other institutions in the ClinVar database (https://www.ncbi.nlm.nih.gov/clinvar/variation/134130/). An in vitro experimental study suggests this variant affects DNA repair mechanisms (Figure 2, Oh et al. 2006. PubMed ID: 16947863). Frameshift variants in ERCC3 are expected to be pathogenic. This variant is interpreted as pathogenic. -
not specified Other:1
not provided, no classification providedreference populationITMISep 19, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs587778281; hg19: chr2-128038128; API