rs397517127

chr7-55191749-G-Achr7-55191749-G-Cchr7-55191749-G-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PM5 PP3_Strong

The NM_005228.5(EGFR):c.2500G>A(p.Val834Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V834L) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EGFR NM_005228.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.96

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]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 12 uncertain in NM_005228.5
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr7-55191749-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 45279.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.95

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EGFR	NM_005228.5	c.2500G>A	p.Val834Met	missense_variant	21/28	ENST00000275493.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EGFR	ENST00000275493.7	c.2500G>A	p.Val834Met	missense_variant	21/28	1	NM_005228.5	P1
EGFR	ENST00000455089.5	c.2365G>A	p.Val789Met	missense_variant	20/26	1
EGFR	ENST00000450046.2	c.2341G>A	p.Val781Met	missense_variant	21/28	4
EGFR	ENST00000700145.1	c.850G>A	p.Val284Met	missense_variant	8/9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.30
Cadd	Pathogenic	32
Dann	Pathogenic	1.0
DEOGEN2	Uncertain	0.76	D;D;D
Eigen	Pathogenic	0.96
Eigen_PC	Pathogenic	0.95
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D;D;D
M_CAP	Pathogenic	0.34	D
MetaRNN	Pathogenic	0.95	D;D;D
MetaSVM	Uncertain	0.74	D
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-2.7	D;.;D
REVEL	Pathogenic	0.84
Sift	Uncertain	0.0080	D;.;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		0.99	D;.;D
Vest4		0.91
MutPred		0.77		.;.;Gain of catalytic residue at V834 (P = 0.0701);
MVP		0.94
MPC		1.5
ClinPred		0.98	D
GERP RS		5.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.92
gMVP		0.84

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

Other links and lift over

dbSNP: rs397517127; hg19: chr7-55259442; COSMIC: COSV51777202; COSMIC: COSV51777202;