7-55173087-G-A

Position:

chr7-55173087-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BS1_Supporting

The ENST00000275493.7(EGFR):c.2024G>A(p.Arg675Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00026 in 1,612,778 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R675G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00024 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

EGFR
ENST00000275493.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1O:1

Conservation

PhyloP100: 6.52

Variant links:

Genes affected

EGFR (HGNC:3236): (epidermal growth factor receptor) The protein encoded by this gene is a transmembrane glycoprotein that is a member of the protein kinase superfamily. This protein is a receptor for members of the epidermal growth factor family. EGFR is a cell surface protein that binds to epidermal growth factor, thus inducing receptor dimerization and tyrosine autophosphorylation leading to cell proliferation. Mutations in this gene are associated with lung cancer. EGFR is a component of the cytokine storm which contributes to a severe form of Coronavirus Disease 2019 (COVID-19) resulting from infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). [provided by RefSeq, Jul 2020]

EGFR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000243 (37/152306) while in subpopulation NFE AF= 0.000397 (27/68040). AF 95% confidence interval is 0.00028. There are 1 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EGFR	NM_005228.5 linkuse as main transcript	c.2024G>A	p.Arg675Gln	missense_variant	17/28	ENST00000275493.7	NP_005219.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EGFR	ENST00000275493.7 linkuse as main transcript	c.2024G>A	p.Arg675Gln	missense_variant	17/28	1	NM_005228.5	ENSP00000275493	P1	P00533-1
EGFR	ENST00000455089.5 linkuse as main transcript	c.1889G>A	p.Arg630Gln	missense_variant	16/26	1		ENSP00000415559
EGFR	ENST00000450046.2 linkuse as main transcript	c.1865G>A	p.Arg622Gln	missense_variant	17/28	4		ENSP00000413354
EGFR	ENST00000700145.1 linkuse as main transcript	c.374G>A	p.Arg125Gln	missense_variant	4/9			ENSP00000514824

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.000397

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000213

AC:

AN:

248624

Hom.:

AF XY:

0.000171

AC XY:

AN XY:

134638

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000250

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.000262

AC:

383

AN:

1460472

Hom.:

Cov.:

AF XY:

0.000272

AC XY:

198

AN XY:

726666

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000604

Gnomad4 ASJ exome

AF:

0.000727

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000283

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000243

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000397

Gnomad4 OTH

AF:

0.000947

Alfa

AF:

0.000274

Hom.:

Bravo

AF:

0.000215

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000214

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:1Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jan 01, 2022	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Nov 15, 2023	- -
Uncertain significance, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

EGFR-related lung cancer

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 30, 2024

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 675 of the EGFR protein (p.Arg675Gln). This variant is present in population databases (rs150423237, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with EGFR-related conditions. ClinVar contains an entry for this variant (Variation ID: 134025). 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 EGFR 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. -

Hereditary cancer-predisposing syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

curation

Sema4, Sema4

Nov 19, 2021

- -

EGFR-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 06, 2024

The EGFR c.2024G>A variant is predicted to result in the amino acid substitution p.Arg675Gln. This variant has been reported as a germline variant in individuals with central nervous system tumors and breast cancer (Table S5, Akhavanfard et al. 2021. PubMed ID: 33326033; Table S3, Guindalini et al. 2022. PubMed ID: 352645960) and as a somatic variant in a patient with non-small cell lung cancer (Table 2, Stein et al. 2017. PubMed ID: 28573640). This variant is reported in 0.037% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Hereditary cancer

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Mendelics

Apr 09, 2024

- -

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

0.14

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.35

T;T;D

Eigen

Pathogenic

0.92

Eigen_PC

Pathogenic

0.90

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Uncertain

0.23

MetaRNN

Uncertain

0.48

T;T;T

MetaSVM

Uncertain

0.27

MutationAssessor

Uncertain

2.9

.;.;M

MutationTaster

Benign

0.99

D;D;D;D

PrimateAI

Uncertain

0.79

PROVEAN

Benign

-2.3

N;.;N

REVEL

Uncertain

0.59

Sift

Uncertain

0.0040

D;.;D

Sift4G

Uncertain

0.041

D;D;D

Polyphen

1.0

D;.;D

Vest4

0.51

MVP

0.82

MPC

1.6

ClinPred

0.28

GERP RS

6.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.76

gMVP

0.78

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