rs373227647

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_000124.4(ERCC6):​c.2830-2A>G variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,794 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

ERCC6
NM_000124.4 splice_acceptor, intron

Scores

4
2
1
Splicing: ADA: 0.9999
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 7.83
Variant links:
Genes affected
ERCC6 (HGNC:3438): (ERCC excision repair 6, chromatin remodeling factor) 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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PP5
Variant 10-49472472-T-C is Pathogenic according to our data. Variant chr10-49472472-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 190163.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
ERCC6NM_000124.4 linkc.2830-2A>G splice_acceptor_variant, intron_variant ENST00000355832.10 NP_000115.1 Q03468-1Q59FF6
ERCC6NM_001346440.2 linkc.2830-2A>G splice_acceptor_variant, intron_variant NP_001333369.1 Q03468-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ERCC6ENST00000355832.10 linkc.2830-2A>G splice_acceptor_variant, intron_variant 1 NM_000124.4 ENSP00000348089.5 Q03468-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152142
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250724
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135490
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1461652
Hom.:
0
Cov.:
32
AF XY:
0.0000303
AC XY:
22
AN XY:
727142
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152142
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74316
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00000961
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingClinical Genetics Laboratory, Skane University Hospital LundMay 27, 2022- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxJul 19, 2016The c.2830-2A>G pathogenic variant in the ERCC6 gene has been reported previously in two unrelated individuals with congenital Cockayne syndrome (Frouin et al., 2013; Laugel et al., 2010). This splice site variant destroys the canonical splice acceptor site in intron 15. It is predicted to cause abnormal gene splicing, either leading to an abnormal message that is subject to nonsense-mediated mRNA decay, or to an abnormal protein product if the message is used for protein translation. The c.2830-2A>G variant was not observed in the homozgyous state or at any significant frequency in approximately 6500 individuals of European and African American ancestry by the NHLBI Exome Sequencing Project. We interpret c.2830-2A>G as a pathogenic variant. -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 17, 2024This sequence change affects an acceptor splice site in intron 15 of the ERCC6 gene. RNA analysis indicates that disruption of this splice site induces altered splicing and may result in an absent or disrupted protein product. This variant is present in population databases (rs373227647, gnomAD 0.003%). Disruption of this splice site has been observed in individuals with Cockayne syndrome (PMID: 19894250, 24154677). ClinVar contains an entry for this variant (Variation ID: 190163). Studies have shown that disruption of this splice site results in skipping of exon 16 and introduces a premature termination codon (PMID: 19894250). The resulting mRNA is expected to undergo nonsense-mediated decay. For these reasons, this variant has been classified as Pathogenic. -
Cerebrooculofacioskeletal syndrome 1;C0265201:DE SANCTIS-CACCHIONE SYNDROME;C0684249:Lung carcinoma;C0751038:Cockayne syndrome type 2;C3151063:Age related macular degeneration 5;C3551173:UV-sensitive syndrome 1;C4310783:Premature ovarian failure 11 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -
Cockayne syndrome type 2 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingClaritas GenomicsSep 21, 2012- -
DE SANCTIS-CACCHIONE SYNDROME Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingCounsylJul 13, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
28
DANN
Uncertain
0.99
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.99
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.93
SpliceAI score (max)
0.99
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.99
Position offset: -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: rs373227647; hg19: chr10-50680518; API