Variant chr16-13920166-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_005236.3(ERCC4):c.1A>G(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000551 in 1,452,472 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ERCC4
NM_005236.3 start_lost

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.24

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:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1

Start lost variant, no new inframe start found.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ERCC4	NM_005236.3 linkuse as main transcript	c.1A>G	p.Met1?	start_lost	1/11	ENST00000311895.8
LOC105371093	XR_007065000.1 linkuse as main transcript	n.82+6359T>C		intron_variant, non_coding_transcript_variant
ERCC4	XM_011522424.4 linkuse as main transcript	c.1A>G	p.Met1?	start_lost	1/12
LOC105371093	XR_007064999.1 linkuse as main transcript	n.82+6359T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ERCC4	ENST00000311895.8 linkuse as main transcript	c.1A>G	p.Met1?	start_lost	1/11	1	NM_005236.3	P1	Q92889-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000415

AC:

AN:

241212

Hom.:

AF XY:

0.00000758

AC XY:

AN XY:

131940

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000551

AC:

AN:

1452472

Hom.:

Cov.:

AF XY:

0.00000830

AC XY:

AN XY:

723048

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Jan 09, 2023

The ERCC4 c.1A>G (p.Met1?) change results in a A>G substitution at the 1 position of exon 1 of the ERCC4 gene. This results in loss of the initiation codon in a gene for which loss-of-function is a known mechanism of disease, however a downstream methionine exists. This variant has a maximum subpopulation frequency of 0.0033% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/) and other start loss variants in ERCC4 are also present in the gnomAD database. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.050

BayesDel_noAF

Uncertain

0.020

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.095

.;T

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.033

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.90

D;D

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.98

D;D

MetaSVM

Benign

-0.93

MutationTaster

Benign

1.0

N;N

PROVEAN

Benign

-0.050

.;N

REVEL

Uncertain

0.30

Sift

Pathogenic

0.0

.;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.0010

.;B

Vest4

0.67

MutPred

0.98

Gain of helix (P = 0.132);Gain of helix (P = 0.132);

MVP

0.89

ClinPred

0.99

GERP RS

4.0

Varity_R

0.91

gMVP

0.49

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

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