chr7-55019291-G-C

Position:

chr7-55019291-G-C

Variant summary

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

The NM_005228.5(EGFR):c.14G>C(p.Gly5Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000199 in 1,507,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G5E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

EGFR
NM_005228.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.290

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 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2133978).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EGFR	NM_005228.5 linkuse as main transcript	c.14G>C	p.Gly5Ala	missense_variant	1/28	ENST00000275493.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EGFR	ENST00000275493.7 linkuse as main transcript	c.14G>C	p.Gly5Ala	missense_variant	1/28	1	NM_005228.5	P1	P00533-1

Frequencies

GnomAD3 genomes

AF:

0.00000662

AC:

AN:

151114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000659

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

GnomAD3 exomes

AF:

0.0000126

AC:

AN:

159204

Hom.:

AF XY:

0.00

AC XY:

AN XY:

89442

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000391

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000626

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000147

AC:

AN:

1356648

Hom.:

Cov.:

AF XY:

0.00000149

AC XY:

AN XY:

672728

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000558

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000662

AC:

AN:

151114

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73776

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000659

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

EGFR-related lung cancer

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 03, 2024

This sequence change replaces glycine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 5 of the EGFR protein (p.Gly5Ala). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 1063111). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The alanine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.071

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

T;.;T;.;.;T

Eigen

Benign

-0.67

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.075

LIST_S2

Benign

0.65

T;T;T;T;T;T

M_CAP

Pathogenic

0.95

MetaRNN

Benign

0.21

T;T;T;T;T;T

MetaSVM

Benign

-0.67

MutationAssessor

Benign

-0.090

.;N;.;N;N;N

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Pathogenic

0.79

PROVEAN

Benign

0.16

N;N;.;N;N;N

REVEL

Benign

0.18

Sift

Benign

0.031

D;T;.;D;T;D

Sift4G

Benign

0.48

T;T;T;T;T;T

Polyphen

0.43

B;B;.;P;B;B

Vest4

0.11

MutPred

0.21

Loss of catalytic residue at G5 (P = 0.0051);Loss of catalytic residue at G5 (P = 0.0051);Loss of catalytic residue at G5 (P = 0.0051);Loss of catalytic residue at G5 (P = 0.0051);Loss of catalytic residue at G5 (P = 0.0051);Loss of catalytic residue at G5 (P = 0.0051);

MVP

0.78

MPC

0.61

ClinPred

0.16

GERP RS

3.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.091

gMVP

0.47

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