rs140522180

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_000400.4(ERCC2):​c.1802G>T​(p.Arg601Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,290 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R601W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ERCC2
NM_000400.4 missense

Scores

15
3
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 5.56

Publications

21 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.981
PP5
Variant 19-45353112-C-A is Pathogenic according to our data. Variant chr19-45353112-C-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 2573404.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
ERCC2NM_000400.4 linkc.1802G>T p.Arg601Leu missense_variant Exon 19 of 23 ENST00000391945.10 NP_000391.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ERCC2ENST00000391945.10 linkc.1802G>T p.Arg601Leu missense_variant Exon 19 of 23 1 NM_000400.4 ENSP00000375809.4

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152002
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
250910
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
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:
1461288
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
726950
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33468
American (AMR)
AF:
0.000134
AC:
6
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53190
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5630
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111868
Other (OTH)
AF:
0.00
AC:
0
AN:
60344
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

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:
152002
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
74222
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41360
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67968
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

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.:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Xeroderma pigmentosum Pathogenic:1
Jun 23, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: ERCC2 c.1802G>T (p.Arg601Leu) results in a non-conservative amino acid change located in the ATP-dependent helicase, C terminal domain (IPR006555) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 2e-05 in 250910 control chromosomes (gnomAD). c.1802G>T has been reported in the literature as a biallelic genotype in individuals affected with Xeroderma Pigmentosum (e.g. Taylor_1997, Schafer_2013, Sugaya_2021). These data indicate that the variant is likely to be associated with disease. At least two publications report experimental evidence evaluating an impact of the variant on nucletodide excision repair (NER) in fibroblasts from homozygous patients and found that it results in a reduction in NER activity to at least 70% of normal (e.g. Schafer_2013, Sugaya_2021). The following publications have been ascertained in the context of this evaluation (PMID: 23800062, 25431422, 32974964, 9238033). No submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as likely pathogenic. -

Xeroderma pigmentosum, group D;C1853102:Cerebrooculofacioskeletal syndrome 2;C1866504:Trichothiodystrophy 1, photosensitive Pathogenic:1
Apr 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 16, 2024
Baylor Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Pathogenic:1
Jan 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 601 of the ERCC2 protein (p.Arg601Leu). This variant is present in population databases (rs140522180, gnomAD 0.01%). This missense change has been observed in individual(s) with xeroderma pigmentosum (PMID: 3341805, 9238033, 23800062, 32974964). ClinVar contains an entry for this variant (Variation ID: 2573404). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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: 25431422, 32974964). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
D;D;D
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Pathogenic
0.50
D
MetaRNN
Pathogenic
0.98
D;D;D
MetaSVM
Uncertain
0.78
D
MutationAssessor
Pathogenic
4.3
H;.;.
PhyloP100
5.6
PrimateAI
Uncertain
0.76
T
PROVEAN
Pathogenic
-6.7
D;D;.
REVEL
Pathogenic
0.74
Sift
Pathogenic
0.0
D;D;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.98
MutPred
0.93
Loss of methylation at R601 (P = 0.0384);.;.;
MVP
0.91
MPC
0.89
ClinPred
1.0
D
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.96
gMVP
0.89
Mutation Taster
=16/84
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

Other links and lift over

dbSNP: rs140522180; hg19: chr19-45856370; API