chr7-55181299-T-TACCATC

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM4PP3

The NM_005228.5(EGFR):​c.2292_2293insCATCAC​(p.Tyr764_Val765insHisHis) variant causes a inframe insertion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as drug response (no stars). Synonymous variant affecting the same amino acid position (i.e. Y764Y) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 34)

Consequence

EGFR
NM_005228.5 inframe_insertion

Scores

Not classified

Clinical Significance

drug response no assertion criteria provided O:1

Conservation

PhyloP100: 9.29
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-AS1 (HGNC:40207): (EGFR antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 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, 15 uncertain in NM_005228.5
PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_005228.5.
PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EGFRNM_005228.5 linkuse as main transcriptc.2292_2293insCATCAC p.Tyr764_Val765insHisHis inframe_insertion 20/28 ENST00000275493.7
EGFR-AS1NR_047551.1 linkuse as main transcriptn.1271_1272insGATGGT non_coding_transcript_exon_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EGFRENST00000275493.7 linkuse as main transcriptc.2292_2293insCATCAC p.Tyr764_Val765insHisHis inframe_insertion 20/281 NM_005228.5 P1P00533-1
EGFR-AS1ENST00000442411.2 linkuse as main transcriptn.1299_1300insGATGGT non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
34

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Tyrosine kinase inhibitor response Other:1
drug response, no assertion criteria providedclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 01, 2008- Likely Responsive

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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.

Other links and lift over

dbSNP: rs1554350337; hg19: chr7-55248992; API