chr7-55174771-A-G

Position:

• chr7-55174771-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1 PM2 PP3_Strong PP5

The NM_005228.5(EGFR):​c.2234A>G​(p.Lys745Arg) 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. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: EGFR NM_005228.5 missense
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.22

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 Likely_pathogenic. Variant got 9 ACMG points.

• PM1: In a modified_residue N6-(2-hydroxyisobutyryl)lysine (size 0) in uniprot entity EGFR_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.945
• PP5: Variant 7-55174771-A-G is Pathogenic according to our data. Variant chr7-55174771-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376080.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EGFR	NM_005228.5	c.2234A>G	p.Lys745Arg	missense_variant	19/28	ENST00000275493.7	NP_005219.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EGFR	ENST00000275493.7	c.2234A>G	p.Lys745Arg	missense_variant	19/28	1	NM_005228.5	ENSP00000275493	P1
EGFR	ENST00000455089.5	c.2099A>G	p.Lys700Arg	missense_variant	18/26	1		ENSP00000415559
EGFR	ENST00000450046.2	c.2075A>G	p.Lys692Arg	missense_variant	19/28	4		ENSP00000413354
EGFR	ENST00000700145.1	c.584A>G	p.Lys195Arg	missense_variant	6/9			ENSP00000514824

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Squamous cell carcinoma of the head and neck Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

Jul 14, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	31
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.78	D;D;D
Eigen	Pathogenic	0.97
Eigen_PC	Pathogenic	0.90
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.96	D;D;D
M_CAP	Pathogenic	0.31	D
MetaRNN	Pathogenic	0.94	D;D;D
MetaSVM	Pathogenic	0.88	D
MutationAssessor	Uncertain	2.9	.;.;M
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Uncertain	-2.6	D;.;D
REVEL	Pathogenic	0.90
Sift	Uncertain	0.0010	D;.;D
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		1.0	D;.;D
Vest4		0.97
MutPred		0.78		.;.;Loss of methylation at K745 (P = 0.0562);
MVP		0.99
MPC		1.3
ClinPred		0.99	D
GERP RS		5.7
Varity_R		0.96
gMVP		0.88

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs121913433; hg19: chr7-55242464; COSMIC: COSV51865841; COSMIC: COSV51865841;