rs4986933

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_005236.3(ERCC4):​c.2579C>A​(p.Ala860Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000475 in 1,614,134 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00028 ( 1 hom. )

Consequence

ERCC4
NM_005236.3 missense

Scores

8
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:8O:1

Conservation

PhyloP100: 2.74

Publications

5 publications found
Variant links:
Genes affected
ERCC4 (HGNC:3436): (ERCC excision repair 4, endonuclease catalytic subunit) The protein encoded by this gene forms a complex with ERCC1 and is involved in the 5' incision made during nucleotide excision repair. This complex is a structure specific DNA repair endonuclease that interacts with EME1. Defects in this gene are a cause of xeroderma pigmentosum complementation group F (XP-F), or xeroderma pigmentosum VI (XP6).[provided by RefSeq, Mar 2009]
ERCC4 Gene-Disease associations (from GenCC):
  • xeroderma pigmentosum group F
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, ClinGen
  • Fanconi anemia complementation group Q
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • XFE progeroid syndrome
    Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics
  • Fanconi anemia
    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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.010523558).
BP6
Variant 16-13948175-C-A is Benign according to our data. Variant chr16-13948175-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 134138.We mark this variant Benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00231 (352/152246) while in subpopulation AFR AF = 0.00795 (330/41532). AF 95% confidence interval is 0.00724. There are 0 homozygotes in GnomAd4. There are 187 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ERCC4NM_005236.3 linkc.2579C>A p.Ala860Asp missense_variant Exon 11 of 11 ENST00000311895.8 NP_005227.1 Q92889-1A0A1W1GSK9
ERCC4XM_011522424.4 linkc.2717C>A p.Ala906Asp missense_variant Exon 12 of 12 XP_011520726.1 A0A804HKF9
ERCC4XM_047433774.1 linkc.1790C>A p.Ala597Asp missense_variant Exon 8 of 8 XP_047289730.1
ERCC4XM_011522427.2 linkc.1229C>A p.Ala410Asp missense_variant Exon 6 of 6 XP_011520729.1 B4DXD8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ERCC4ENST00000311895.8 linkc.2579C>A p.Ala860Asp missense_variant Exon 11 of 11 1 NM_005236.3 ENSP00000310520.7 Q92889-1

Frequencies

GnomAD3 genomes
AF:
0.00227
AC:
346
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00782
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000785
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00287
GnomAD2 exomes
AF:
0.000692
AC:
174
AN:
251432
AF XY:
0.000603
show subpopulations
Gnomad AFR exome
AF:
0.00806
Gnomad AMR exome
AF:
0.000896
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000284
AC:
415
AN:
1461888
Hom.:
1
Cov.:
33
AF XY:
0.000265
AC XY:
193
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.00917
AC:
307
AN:
33478
American (AMR)
AF:
0.000939
AC:
42
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.000867
AC:
5
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000171
AC:
19
AN:
1112008
Other (OTH)
AF:
0.000596
AC:
36
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
30
60
90
120
150
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00231
AC:
352
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.00251
AC XY:
187
AN XY:
74428
show subpopulations
African (AFR)
AF:
0.00795
AC:
330
AN:
41532
American (AMR)
AF:
0.000784
AC:
12
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68026
Other (OTH)
AF:
0.00284
AC:
6
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
19
37
56
74
93
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000569
Hom.:
1
Bravo
AF:
0.00282
ESP6500AA
AF:
0.00865
AC:
38
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000807
AC:
98
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:8Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Xeroderma pigmentosum, group F Benign:3
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 28, 2019
Mendelics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1Other:1
Dec 17, 2020
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Xeroderma pigmentosum Uncertain:1
Nov 30, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Hutchinson-Gilford syndrome Uncertain:1
-
University of Washington Center for Mendelian Genomics, University of Washington
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:research

- -

Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q Benign:1
Feb 01, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Benign:1
Aug 23, 2021
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Hereditary cancer-predisposing syndrome Benign:1
Nov 10, 2024
Molecular Diagnostics Laboratory, Catalan Institute of Oncology
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BA1, BP4 c.2579C>A, located in exon 11 of the ERCC4 gene, is predicted to result in the substitution of Alanine by Aspartic acid at codon 860, p.(Ala860Asp). The variant allele was found in 183/23610 alleles, with a filtering allele frequency of 0.7% at 95% confidence, within the African population in the gnomAD v2.1.1 database (non-cancer data set) (BA1). The SpliceAI algorithm predicts no significant impact on splicing. The REVEL meta-predictor score for this variant (0.218) suggests that it does not affect the protein function according Pejaver 2022 thresholds (PMID: 36413997) (BP4). To our knowledge, neither clinical data nor functional studies have been reported for this variant. It has been reported in ClinVar (2x uncertain significance, 6x likely benign). Based on currently available information, c.2579C>A is classified as a benign variant according to ACMG guidelines. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.10
T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.011
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.3
L
PhyloP100
2.7
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.22
Sift
Uncertain
0.023
D
Sift4G
Benign
0.10
T
Polyphen
0.96
P
Vest4
0.62
MVP
0.61
MPC
0.36
ClinPred
0.025
T
GERP RS
6.2
Varity_R
0.35
gMVP
0.54
Mutation Taster
=46/54
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: rs4986933; hg19: chr16-14042032; API