chr7-55191746-T-C

Variant names:

• chr7-55191746-T-C
• rs397517126
• NM_005228.5:c.2497T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_005228.5(EGFR):​c.2497T>C​(p.Leu833Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EGFR NM_005228.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0230
• 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-AS1 (HGNC:40207): (EGFR antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.65).
• BP7: Synonymous conserved (PhyloP=0.023 with no splicing effect.

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.2497T>C	p.Leu833Leu	synonymous	Exon 21 of 28	NP_005219.2
	EGFR	NM_001346899.2		c.2362T>C	p.Leu788Leu	synonymous	Exon 20 of 27	NP_001333828.1
	EGFR	NM_001346900.2		c.2338T>C	p.Leu780Leu	synonymous	Exon 21 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.2497T>C	p.Leu833Leu	synonymous	Exon 21 of 28	ENSP00000275493.2
	EGFR	ENST00000455089.5	TSL:1	c.2362T>C	p.Leu788Leu	synonymous	Exon 20 of 26	ENSP00000415559.1
	EGFR	ENST00000450046.2	TSL:4	c.2338T>C	p.Leu780Leu	synonymous	Exon 21 of 28	ENSP00000413354.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.65
CADD	Benign	5.1
DANN	Benign	0.62
PhyloP100		0.023
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs397517126; hg19: chr7-55259439;