rs1026438103

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PP3_StrongPP5

The NM_000124.4(ERCC6):​c.2060C>T​(p.Ser687Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/23 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S687S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

ERCC6
NM_000124.4 missense

Scores

16
2
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:1

Conservation

PhyloP100: 10.0
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 was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 5 uncertain in NM_000124.4
PP3
MetaRNN computational evidence supports a deleterious effect, 0.979
PP5
Variant 10-49482796-G-A is Pathogenic according to our data. Variant chr10-49482796-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 552600.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ERCC6NM_000124.4 linkc.2060C>T p.Ser687Leu missense_variant Exon 10 of 21 ENST00000355832.10 NP_000115.1 Q03468-1Q59FF6
ERCC6NM_001346440.2 linkc.2060C>T p.Ser687Leu missense_variant Exon 10 of 21 NP_001333369.1 Q03468-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ERCC6ENST00000355832.10 linkc.2060C>T p.Ser687Leu missense_variant Exon 10 of 21 1 NM_000124.4 ENSP00000348089.5 Q03468-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152030
Hom.:
0
Cov.:
31
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
GnomAD4 exome
AF:
0.00000752
AC:
11
AN:
1461832
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
AC:
0
AN:
33480
Gnomad4 AMR exome
AF:
0.00
AC:
0
AN:
44724
Gnomad4 ASJ exome
AF:
0.00
AC:
0
AN:
26136
Gnomad4 EAS exome
AF:
0.00
AC:
0
AN:
39694
Gnomad4 SAS exome
AF:
0.0000116
AC:
1
AN:
86248
Gnomad4 FIN exome
AF:
0.00
AC:
0
AN:
53420
Gnomad4 NFE exome
AF:
0.00000809
AC:
9
AN:
1111970
Gnomad4 Remaining exome
AF:
0.0000166
AC:
1
AN:
60392
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152030
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74266
show subpopulations
Gnomad4 AFR
AF:
0.00
AC:
0
AN:
0
Gnomad4 AMR
AF:
0.00
AC:
0
AN:
0
Gnomad4 ASJ
AF:
0.00
AC:
0
AN:
0
Gnomad4 EAS
AF:
0.00
AC:
0
AN:
0
Gnomad4 SAS
AF:
0.00
AC:
0
AN:
0
Gnomad4 FIN
AF:
0.00
AC:
0
AN:
0
Gnomad4 NFE
AF:
0.0000147
AC:
0.0000147046
AN:
0.0000147046
Gnomad4 OTH
AF:
0.00
AC:
0
AN:
0
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Nov 29, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 687 of the ERCC6 protein (p.Ser687Leu). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with Cockayne syndrome (PMID: 19894250, 27004399, 29572252). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 552600). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. For these reasons, this variant has been classified as Pathogenic. -

Cockayne syndrome type 2 Pathogenic:1
-
Service de Génétique Moléculaire, Hôpital Robert Debré
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Cerebrooculofacioskeletal syndrome 1;C0265201:DE SANCTIS-CACCHIONE SYNDROME;C0751038:Cockayne syndrome type 2 Uncertain:1
Jun 27, 2017
Counsyl
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.54
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.77
D
Eigen
Pathogenic
1.2
Eigen_PC
Pathogenic
1.1
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.1
H
PrimateAI
Pathogenic
0.80
D
PROVEAN
Pathogenic
-5.4
D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.97
MutPred
0.89
Loss of helix (P = 0.0558);
MVP
0.91
MPC
0.49
ClinPred
1.0
D
GERP RS
5.7
Varity_R
0.95
gMVP
0.92
Mutation Taster
=7/93
disease causing

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: rs1026438103; hg19: chr10-50690842; API