rs750487805
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_000038.6(APC):āc.1283A>Gā(p.Glu428Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E428K) has been classified as Uncertain significance.
Frequency
Consequence
NM_000038.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
APC | NM_000038.6 | c.1283A>G | p.Glu428Gly | missense_variant | 10/16 | ENST00000257430.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
APC | ENST00000257430.9 | c.1283A>G | p.Glu428Gly | missense_variant | 10/16 | 5 | NM_000038.6 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152224Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461738Hom.: 0 Cov.: 33 AF XY: 0.00000688 AC XY: 5AN XY: 727170
GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152224Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74364
ClinVar
Submissions by phenotype
Familial adenomatous polyposis 1 Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Sep 04, 2023 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 18, 2023 | This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 428 of the APC protein (p.Glu428Gly). This variant is present in population databases (rs750487805, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with APC-related conditions. ClinVar contains an entry for this variant (Variation ID: 537569). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt APC protein function with a negative predictive value of 95%. 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. - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Mendelics | May 04, 2022 | - - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Jul 17, 2020 | - - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 28, 2022 | The p.E428G variant (also known as c.1283A>G), located in coding exon 9 of the APC gene, results from an A to G substitution at nucleotide position 1283. The glutamic acid at codon 428 is replaced by glycine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, in silico predictors for this gene do not accurately predict pathogenicity. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at