rs202080674

Variant names:

• chr10-49482848-G-A
• rs202080674
• NM_000124.4:c.2008C>T

Variant summary

Our verdict is Pathogenic. The variant received 20 ACMG points: 20P and 0B. PS3 PM2 PM5 PP3_Strong PP5_Very_Strong

The NM_000124.4(ERCC6):​c.2008C>T​(p.Arg670Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000547 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV003441428: Experimental studies have shown that this missense change affects ERCC6 function (PMID:9443879).". Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R670Q) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: ERCC6 NM_000124.4 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 6.49
• Publications: 14 publications found

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]

ERCC6 Gene-Disease associations (from GenCC):

• Cockayne spectrum with or without cerebrooculofacioskeletal syndrome

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Cockayne syndrome type 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P
• UV-sensitive syndrome 1

  Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
• COFS syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• UV-sensitive syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• premature ovarian failure 11

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 20 ACMG points.

• PS3: PS3 evidence extracted from ClinVar submissions: SCV003441428: Experimental studies have shown that this missense change affects ERCC6 function (PMID: 9443879).
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr10-49482847-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 1978975.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.989
• PP5: Variant 10-49482848-G-A is Pathogenic according to our data. Variant chr10-49482848-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 190158.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000124.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERCC6	NM_000124.4	MANE Select	c.2008C>T	p.Arg670Trp	missense	Exon 10 of 21	NP_000115.1	Q03468-1
	ERCC6	NM_001346440.2		c.2008C>T	p.Arg670Trp	missense	Exon 10 of 21	NP_001333369.1	Q03468-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERCC6	ENST00000355832.10	TSL:1 MANE Select	c.2008C>T	p.Arg670Trp	missense	Exon 10 of 21	ENSP00000348089.5	Q03468-1
	ERCC6	ENST00000623073.3	TSL:1	n.6488C>T		non_coding_transcript_exon	Exon 5 of 15
	ERCC6	ENST00000898255.1		c.2008C>T	p.Arg670Trp	missense	Exon 10 of 21	ENSP00000568314.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251370 AF XY: 0.0000147

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461852 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 727228

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000540 AC: 6 AN: 1111978

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 31

Alfa AF: 0.0000450 Hom.: 0

Bravo AF: 0.00000756

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
1	-	-	Cockayne syndrome type 2 (1)
1	-	-	Inborn genetic diseases (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.54
CADD	Pathogenic	34
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.79	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	0.97
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Uncertain	0.12	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	4.8	H
PhyloP100		6.5
PrimateAI	Pathogenic	0.89	D
PROVEAN	Pathogenic	-7.0	D
REVEL	Pathogenic	0.96
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.96
MutPred		0.98		Loss of disorder (P = 0.0495)
MVP		0.97
MPC		0.53
ClinPred		1.0	D
GERP RS		5.6
Varity_R		0.91
gMVP		0.95
Mutation Taster		=11/89	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs202080674; hg19: chr10-50690894; COSMIC: COSV63392567; COSMIC: COSV63392567;