15-89321135-G-A
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6BP7
The NM_002693.3(POLG):c.2724C>T(p.Ala908=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000141 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A908A) has been classified as Likely benign.
Frequency
Consequence
NM_002693.3 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLG | NM_002693.3 | c.2724C>T | p.Ala908= | synonymous_variant | 17/23 | ENST00000268124.11 | |
POLGARF | NM_001406557.1 | c.*1996C>T | 3_prime_UTR_variant | 17/23 | |||
POLG | NM_001126131.2 | c.2724C>T | p.Ala908= | synonymous_variant | 17/23 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLG | ENST00000268124.11 | c.2724C>T | p.Ala908= | synonymous_variant | 17/23 | 1 | NM_002693.3 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000788 AC: 12AN: 152226Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000111 AC: 28AN: 251200Hom.: 0 AF XY: 0.0000810 AC XY: 11AN XY: 135780
GnomAD4 exome AF: 0.000148 AC: 216AN: 1461878Hom.: 0 Cov.: 35 AF XY: 0.000150 AC XY: 109AN XY: 727242
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152226Hom.: 0 Cov.: 33 AF XY: 0.0000941 AC XY: 7AN XY: 74362
ClinVar
Submissions by phenotype
not provided Uncertain:1Benign:2
Uncertain significance, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Jan 04, 2015 | - - |
Likely benign, no assertion criteria provided | clinical testing | Mayo Clinic Laboratories, Mayo Clinic | Feb 25, 2016 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | May 06, 2020 | - - |
not specified Uncertain:1Benign:1
Benign, criteria provided, single submitter | clinical testing | GeneDx | Sep 10, 2014 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Nov 13, 2014 | - - |
POLG-Related Spectrum Disorders Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 19, 2018 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Progressive sclerosing poliodystrophy Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Jan 26, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at