7-55191792-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP6BS1

The NM_005228.5(EGFR):c.2543C>T(p.Pro848Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000373 in 1,613,922 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P848Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

EGFR
NM_005228.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:5O:1

Conservation

PhyloP100: 7.85

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 was made for transcript

Our verdict: Likely_benign. The variant received -3 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, 9 uncertain in NM_005228.5

BP6

Variant 7-55191792-C-T is Benign according to our data. Variant chr7-55191792-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 45282.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=3, not_provided=1, Likely_benign=4, Benign=1}.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000256 (39/152068) while in subpopulation NFE AF = 0.000485 (33/68034). AF 95% confidence interval is 0.000354. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position FAILED quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EGFR	NM_005228.5 link	c.2543C>T	p.Pro848Leu	missense_variant	Exon 21 of 28	ENST00000275493.7	NP_005219.2	P00533-1Q504U8F2YGG7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EGFR	ENST00000275493.7 link	c.2543C>T	p.Pro848Leu	missense_variant	Exon 21 of 28	1	NM_005228.5	ENSP00000275493.2	P00533-1
EGFR	ENST00000455089.5 link	c.2408C>T	p.Pro803Leu	missense_variant	Exon 20 of 26	1		ENSP00000415559.1	Q504U8
EGFR	ENST00000450046.2 link	c.2384C>T	p.Pro795Leu	missense_variant	Exon 21 of 28	4		ENSP00000413354.2	C9JYS6
EGFR	ENST00000700145.1 link	c.890C>T	p.Pro297Leu	missense_variant	Exon 8 of 9			ENSP00000514824.1	A0A8V8TPW8

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152068

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000485

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000358

AC:

AN:

251310

AF XY:

0.000383

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.000173

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.000232

Gnomad NFE exome

AF:

0.000642

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000385

AC:

563

AN:

1461854

Hom.:

Cov.:

AF XY:

0.000402

AC XY:

292

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

AC:

AN:

33480

Gnomad4 AMR exome

AF:

0.000134

AC:

AN:

44724

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

26136

Gnomad4 EAS exome

AF:

0.0000504

AC:

AN:

39700

Gnomad4 SAS exome

AF:

0.0000116

AC:

AN:

86258

Gnomad4 FIN exome

AF:

0.000300

AC:

AN:

53386

Gnomad4 NFE exome

AF:

0.000466

AC:

518

AN:

1112008

Gnomad4 Remaining exome

AF:

0.000331

AC:

AN:

60394

Heterozygous variant carriers

113

150

188

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000256

AC:

AN:

152068

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74266

show subpopulations

Gnomad4 AFR

AF:

0.0000483

AC:

0.0000483022

AN:

0.0000483022

Gnomad4 AMR

AF:

0.000197

AC:

0.000196567

AN:

0.000196567

Gnomad4 ASJ

AF:

0.00

AC:

AN:

Gnomad4 EAS

AF:

0.000194

AC:

0.000194024

AN:

0.000194024

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.000485

AC:

0.000485052

AN:

0.000485052

Gnomad4 OTH

AF:

0.00

AC:

AN:

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000449

Hom.:

Bravo

AF:

0.000272

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000461

AC:

EpiCase

AF:

0.000654

EpiControl

AF:

0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:5Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

May 01, 2023

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 03, 2021

Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 14, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Identified in the germline of individuals with lung cancer, glioma, and retinoblastoma (Sequist 2006, Prim 2014, Akhavanfard 2021); Published functional studies demonstrate reduced/absent auto-phosphorylation, kinase activity, and capacity to bind c-Cbl (de Gunst 2007, Sarcar 2019); This variant is associated with the following publications: (PMID: 22848293, 17877814, 25176975, 16857818, 33326033, 31314158) -

not specified

Uncertain:1Benign:1

Jun 08, 2022

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

DNA sequence analysis of the EGFR gene demonstrated a sequence change, c.2543C>T, in exon 21 that results in an amino acid change, p.Pro848Leu. This sequence change has been previously described in individuals with non-small cell lung cancer (NSCLC) (PMID: 25176975,16857818,22848293). In vitro functional studies have suggested that this variant is not a kinase activating mutation and showed a response to tyrosine kinase inhibitors, similar to the wild-type (PMID: 17877814, 22848293). This sequence change has been described in the gnomAD database with a frequency of 0.06% in the European subpopulation (dbSNP rs148934350). The p.Pro848Leu change affects a highly conserved amino acid residue located in a domain of the EGFR protein that is known to be functional. In-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL) provide contradictory results for the p.Pro848Leu substitution. Due to insufficient evidences and the lack of functional studies, the clinical significance of the p.Pro848Leu change remains unknown at this time. -

Jul 11, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Pro848Leu variant in Exon 21 of EGFR: This variant is not expected to have clinical significance because iIn vitro studies suggest that this variant does not activate EGFR activity and does not render the protein sensitive to tyrosine kinase inhibitors (TKIs) (De Gunst 2007, Han 2011). It has been previously identified in both tumor and normal tissue in an individuals with lung cancer (Sequist 2007), and it has been identified in 0.06% (6/8600) of European American chromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs148934350). -

Hereditary cancer-predisposing syndrome

Uncertain:1Benign:1

Nov 01, 2021

Sema4, Sema4

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:curation

- -

Aug 23, 2024

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Lung carcinoma

Benign:1

May 28, 2019

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

EGFR-related lung cancer

Benign:1

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Lung cancer

Other:1

GenomeConnect - Invitae Patient Insights Network

Significance:not provided

Review Status:no classification provided

Collection Method:phenotyping only

Variant interpreted as Uncertain significance and reported on 11-11-2019 by Lab Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.74

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.71

D;D;D

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Uncertain

0.14

MetaRNN

Uncertain

0.54

D;D;D

MetaSVM

Benign

-0.39

MutationAssessor

Benign

0.37

.;.;N

PrimateAI

Pathogenic

0.89

PROVEAN

Pathogenic

-8.9

D;.;D

REVEL

Uncertain

0.47

Sift

Uncertain

0.0010

D;.;D

Sift4G

Uncertain

0.046

D;T;D

Polyphen

1.0

D;.;D

Vest4

0.73

MVP

0.84

MPC

1.5

ClinPred

0.22

GERP RS

5.8

Varity_R

0.95

gMVP

0.82

Mutation Taster

=28/72

disease causing

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