7-55156802-G-T

Variant names:

• chr7-55156802-G-T
• rs587778246
• NM_005228.5:c.1177G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005228.5(EGFR):​c.1177G>T​(p.Asp393Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. D393H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EGFR NM_005228.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.53
• Publications: 0 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: G2P, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• neonatal inflammatory skin and bowel disease

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EGFR	NM_005228.5	MANE Select	c.1177G>T	p.Asp393Tyr	missense	Exon 10 of 28	NP_005219.2
	EGFR	NM_001346899.2		c.1042G>T	p.Asp348Tyr	missense	Exon 9 of 27	NP_001333828.1
	EGFR	NM_001346900.2		c.1018G>T	p.Asp340Tyr	missense	Exon 10 of 28	NP_001333829.1	C9JYS6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EGFR	ENST00000275493.7	TSL:1 MANE Select	c.1177G>T	p.Asp393Tyr	missense	Exon 10 of 28	ENSP00000275493.2	P00533-1
	EGFR	ENST00000455089.5	TSL:1	c.1042G>T	p.Asp348Tyr	missense	Exon 9 of 26	ENSP00000415559.1	Q504U8
	EGFR	ENST00000344576.7	TSL:1	c.1177G>T	p.Asp393Tyr	missense	Exon 10 of 16	ENSP00000345973.2	P00533-3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461894 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112012

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Uncertain	26
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.74	D
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.10	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Uncertain	-0.10	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		2.5
PrimateAI	Benign	0.41	T
PROVEAN	Uncertain	-3.3	D
REVEL	Uncertain	0.47
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.012	D
Polyphen		0.97	D
Vest4		0.49
MutPred		0.53		Loss of disorder (P = 0.0475)
MVP		0.90
MPC		1.5
ClinPred		0.97	D
GERP RS		5.0
Varity_R		0.43
gMVP		0.90
Mutation Taster		=60/40	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		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: rs587778246; hg19: chr7-55224495; COSMIC: COSV109409875;