7-55143387-G-A

Variant names:

• chr7-55143387-G-A
• rs1057519828
• NM_005228.5:c.323G>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_005228.5(EGFR):​c.323G>A​(p.Arg108Lys) 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 (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R108I) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: EGFR NM_005228.5 missense
• Clinical Significance: Other O:1
• Conservation: PhyloP100: 9.90
• Publications: 148 publications found

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 Gene-Disease associations (from GenCC):

• lung cancer

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P, Ambry Genetics
• non-small cell lung carcinoma

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• inflammatory skin and bowel disease, neonatal, 2

  Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• neonatal inflammatory skin and bowel disease

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.923

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005228.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EGFR	NM_005228.5	MANE Select	c.323G>A	p.Arg108Lys	missense	Exon 3 of 28	NP_005219.2
	EGFR	NM_001346899.2		c.323G>A	p.Arg108Lys	missense	Exon 3 of 27	NP_001333828.1
	EGFR	NM_001346900.2		c.164G>A	p.Arg55Lys	missense	Exon 3 of 28	NP_001333829.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EGFR	ENST00000275493.7	TSL:1 MANE Select	c.323G>A	p.Arg108Lys	missense	Exon 3 of 28	ENSP00000275493.2
	EGFR	ENST00000455089.5	TSL:1	c.323G>A	p.Arg108Lys	missense	Exon 3 of 26	ENSP00000415559.1
	EGFR	ENST00000344576.7	TSL:1	c.323G>A	p.Arg108Lys	missense	Exon 3 of 16	ENSP00000345973.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance:

Submissions summary: Other:1

Revision:

Submissions by phenotype

Neoplasm Other:1

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance:

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.83	D
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.23	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Uncertain	0.62	D
MutationAssessor	Pathogenic	3.1	M
PhyloP100		9.9
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-2.5	N
REVEL	Pathogenic	0.85
Sift	Uncertain	0.0030	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.85
MutPred		0.81		Gain of ubiquitination at R108 (P = 0.0258)
MVP		0.96
MPC		1.5
ClinPred		0.99	D
GERP RS		5.3
Varity_R		0.97
gMVP		0.96
Mutation Taster		=25/75	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1057519828; hg19: chr7-55211080; COSMIC: COSV51766433;