16-13922040-A-G

Position:

chr16-13922040-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005236.3(ERCC4):c.217A>G(p.Ile73Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000318 in 1,613,224 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

ERCC4
NM_005236.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6O:1

Conservation

PhyloP100: 8.89

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 links:

LOC105371093 (HGNC:):

LOC105371093 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10502261).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ERCC4	NM_005236.3 linkuse as main transcript	c.217A>G	p.Ile73Val	missense_variant	2/11	ENST00000311895.8	NP_005227.1
LOC105371093	XR_007065000.1 linkuse as main transcript	n.82+4485T>C		intron_variant, non_coding_transcript_variant
ERCC4	XM_011522424.4 linkuse as main transcript	c.217A>G	p.Ile73Val	missense_variant	2/12		XP_011520726.1
LOC105371093	XR_007064999.1 linkuse as main transcript	n.82+4485T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ERCC4	ENST00000311895.8 linkuse as main transcript	c.217A>G	p.Ile73Val	missense_variant	2/11	1	NM_005236.3	ENSP00000310520	P1	Q92889-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.000514

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000223

AC:

AN:

251192

Hom.:

AF XY:

0.000265

AC XY:

AN XY:

135762

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000260

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000396

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000318

AC:

464

AN:

1460902

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

234

AN XY:

726832

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000376

Gnomad4 OTH exome

AF:

0.000447

GnomAD4 genome

AF:

0.000322

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000515

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000373

Hom.:

Bravo

AF:

0.000298

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000222

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 09, 2024

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 73 of the ERCC4 protein (p.Ile73Val). This variant is present in population databases (rs141591400, gnomAD 0.04%). This missense change has been observed in individual(s) with breast cancer (PMID: 24465539). ClinVar contains an entry for this variant (Variation ID: 134143). 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 not expected to disrupt ERCC4 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 27, 2021

The c.217A>G (p.I73V) alteration is located in exon 2 (coding exon 2) of the ERCC4 gene. This alteration results from a A to G substitution at nucleotide position 217, causing the isoleucine (I) at amino acid position 73 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Fanconi anemia complementation group Q

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

St. Jude Molecular Pathology, St. Jude Children's Research Hospital

Oct 04, 2022

The ERCC4 c.217A>G (p.Ile73Val) missense change has a maximum subpopulation frequency of 0.037% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. To our knowledge, this variant has not been reported in individuals with Fanconi anemia or Xeroderma pigmentosum. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -

Xeroderma pigmentosum, group F

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not provided

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Department of Pathology and Laboratory Medicine, Sinai Health System

The ERCC4 p.Ile73Val variant was identified in 1 of 126 proband chromosomes (frequency: 0.0079) from individuals or families with breast cancer (Kohlhase_2014_PMID: 24465539). The variant was identified in dbSNP (ID: rs141591400) and ClinVar, where it was classified as a VUS by Invitae and was unclassified by ITMI (Inova Translational Medicine Institute). The variant was also found in LOVD 3.0 but not in Cosmic. The variant was identified in control databases in 62 of 282586 chromosomes at a frequency of 0.000219 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: European (non-Finnish) in 48 of 129020 chromosomes (freq: 0.000372), Latino in 10 of 35398 chromosomes (freq: 0.000283), other in 1 of 7218 chromosomes (freq: 0.000139), African in 2 of 24954 chromosomes (freq: 0.00008) and South Asian in 1 of 30582 chromosomes (freq: 0.000033); it was not observed in the Ashkenazi Jewish and East Asian populations. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. The p.Ile73 residue is conserved in mammals but not in more distantly related organisms and four of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein;this information is not predictive enough to rule out pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

Xeroderma pigmentosum, group F;C1970416:XFE progeroid syndrome;C3808988:Fanconi anemia complementation group Q

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Aug 17, 2021

- -

not specified

Other:1

not provided, no classification provided

reference population

ITMI

Sep 19, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.12

.;T

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.73

T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.4

L;L

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.18

.;N

REVEL

Benign

0.12

Sift

Benign

0.14

.;T

Sift4G

Benign

0.14

T;T

Polyphen

0.15

.;B

Vest4

0.37

MVP

0.51

MPC

0.18

ClinPred

0.079

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.12

gMVP

0.24

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over