chr7-55200351-C-T
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_005228.5(EGFR):c.2884C>T(p.Arg962Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000787 in 1,614,036 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R962H) has been classified as Likely benign.
Frequency
Consequence
NM_005228.5 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
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.2884C>T | p.Arg962Cys | missense | Exon 24 of 28 | NP_005219.2 | ||
| EGFR | NM_001346899.2 | c.2749C>T | p.Arg917Cys | missense | Exon 23 of 27 | NP_001333828.1 | |||
| EGFR | NM_001346900.2 | c.2725C>T | p.Arg909Cys | missense | Exon 24 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.2884C>T | p.Arg962Cys | missense | Exon 24 of 28 | ENSP00000275493.2 | ||
| EGFR | ENST00000455089.5 | TSL:1 | c.2749C>T | p.Arg917Cys | missense | Exon 23 of 26 | ENSP00000415559.1 | ||
| EGFR | ENST00000450046.2 | TSL:4 | c.2725C>T | p.Arg909Cys | missense | Exon 24 of 28 | ENSP00000413354.2 |
Frequencies
GnomAD3 genomes AF: 0.0000657 AC: 10AN: 152144Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000835 AC: 21AN: 251490 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000800 AC: 117AN: 1461892Hom.: 0 Cov.: 31 AF XY: 0.0000839 AC XY: 61AN XY: 727248 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000657 AC: 10AN: 152144Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3AN XY: 74312 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
The p.R962C variant (also known as c.2884C>T), located in coding exon 24 of the EGFR gene, results from a C to T substitution at nucleotide position 2884. The arginine at codon 962 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear.
EGFR-related lung cancer Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 962 of the EGFR protein (p.Arg962Cys). This variant is present in population databases (rs17337451, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with EGFR-related conditions. ClinVar contains an entry for this variant (Variation ID: 855873). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on EGFR protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
EGFR-related disorder Uncertain:1
The EGFR c.2884C>T variant is predicted to result in the amino acid substitution p.Arg962Cys. This variant was reported in several individuals with kidney cancer in childhood or prostate cancer (Kim et al. 2021. PubMed ID: 34308104; Johnson AM et al. 2014. PubMed ID: 25111073). This variant is reported in 0.014% of alleles in individuals of European (Non-Finnish) descent in gnomAD. This variant is interpreted as uncertain significance in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/855873/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at