rs121913021

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong

The NM_000400.4(ERCC2):c.1972C>T(p.Arg658Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000304 in 1,614,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R658H) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

ERCC2
NM_000400.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 4.87

Publications

17 publications found

Variant links:

Genes affected

ERCC2 (HGNC:3434): (ERCC excision repair 2, TFIIH core complex helicase subunit) The nucleotide excision repair pathway is a mechanism to repair damage to DNA. The protein encoded by this gene is involved in transcription-coupled nucleotide excision repair and is an integral member of the basal transcription factor BTF2/TFIIH complex. The gene product has ATP-dependent DNA helicase activity and belongs to the RAD3/XPD subfamily of helicases. Defects in this gene can result in three different disorders, the cancer-prone syndrome xeroderma pigmentosum complementation group D, trichothiodystrophy, and Cockayne syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

ERCC2 Gene-Disease associations (from GenCC):

cerebrooculofacioskeletal syndrome 2
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
trichothiodystrophy 1, photosensitive
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Illumina, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
xeroderma pigmentosum group D
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Laboratory for Molecular Medicine, ClinGen, Labcorp Genetics (formerly Invitae), G2P
sarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
COFS syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
trichothiodystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
xeroderma pigmentosum
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
xeroderma pigmentosum-Cockayne syndrome complex
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ERCC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 18 uncertain in NM_000400.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr19-45352579-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 1499293.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.992

PP5

Variant 19-45352580-G-A is Pathogenic according to our data. Variant chr19-45352580-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 16785.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERCC2	NM_000400.4 link	c.1972C>T	p.Arg658Cys	missense_variant	Exon 21 of 23	ENST00000391945.10	NP_000391.1	P18074-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ERCC2	ENST00000391945.10 link	c.1972C>T	p.Arg658Cys	missense_variant	Exon 21 of 23	1	NM_000400.4	ENSP00000375809.4		P18074-1

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

251270

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.000123

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461742

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727184

show subpopulations

African (AFR)

AF:

0.000179

AC:

AN:

33480

American (AMR)

AF:

0.0000671

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53280

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000225

AC:

AN:

1112002

Other (OTH)

AF:

0.0000662

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000394

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74466

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41578

American (AMR)

AF:

0.000196

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000231

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:2

Apr 24, 2025

GeneDx

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Published functional studies demonstrate R658C prevents interaction with p44, disturbs TFIIH composition, and exhibits no detectable helicase activity (PMID: 12820975); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25431422, 11335038, 8571952, 28724667, 11242112, 26971583, 27982466, 31589614, 35599849, 12820975) -

Dec 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 658 of the ERCC2 protein (p.Arg658Cys). This variant is present in population databases (rs121913021, gnomAD 0.01%). This missense change has been observed in individuals with trichothiodystrophy (PMID: 8571952, 11242112, 35599849). ClinVar contains an entry for this variant (Variation ID: 16785). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ERCC2 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects ERCC2 function (PMID: 12820975, 25431422). This variant disrupts the p.Arg658 amino acid residue in ERCC2. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8571952, 9238033, 11585917, 12820975, 25431422). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Trichothiodystrophy 1, photosensitive

Pathogenic:2

Mar 01, 2001

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Jul 20, 2022

Greenwood Genetic Center Diagnostic Laboratories, Greenwood Genetic Center

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

PS3 PM3_Strong PM2 -

Ovarian cancer

Pathogenic:1

Jan 01, 2022

Laboratory of Molecular Epidemiology of Birth Defects, West China Second University Hospital, Sichuan University

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Xeroderma pigmentosum, group D;C1853102:Cerebrooculofacioskeletal syndrome 2;C1866504:Trichothiodystrophy 1, photosensitive

Pathogenic:1

Mar 11, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cerebrooculofacioskeletal syndrome 2

Pathogenic:1

Mar 24, 2024

Baylor Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.49

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.81

D;D;D

Eigen

Pathogenic

0.93

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

1.0

D;D;D

M_CAP

Pathogenic

0.71

MetaRNN

Pathogenic

0.99

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.5

H;.;.

PhyloP100

4.9

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-7.3

D;D;.

REVEL

Pathogenic

0.90

Sift

Pathogenic

0.0

D;D;.

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.96

MutPred

0.95

Loss of MoRF binding (P = 0.0164);.;.;

MVP

0.98

MPC

0.94

ClinPred

1.0

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.94

gMVP

0.90

Mutation Taster

=2/98

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over