rs766737737
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_003640.5(ELP1):c.1573C>T(p.Arg525Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000706 in 1,613,824 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. R525Q) has been classified as Benign.
Frequency
Consequence
NM_003640.5 missense
Scores
Clinical Significance
Conservation
Publications
- primary dysautonomiaInheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
- Riley-Day syndromeInheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
- medulloblastomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ELP1 | NM_003640.5 | c.1573C>T | p.Arg525Trp | missense_variant | Exon 14 of 37 | ENST00000374647.10 | NP_003631.2 | |
| ELP1 | NM_001318360.2 | c.1231C>T | p.Arg411Trp | missense_variant | Exon 14 of 37 | NP_001305289.1 | ||
| ELP1 | NM_001330749.2 | c.526C>T | p.Arg176Trp | missense_variant | Exon 12 of 35 | NP_001317678.1 | ||
| ELP1 | XM_047423991.1 | c.1573C>T | p.Arg525Trp | missense_variant | Exon 14 of 25 | XP_047279947.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000478 AC: 12AN: 251286 AF XY: 0.0000295 show subpopulations
GnomAD4 exome AF: 0.0000766 AC: 112AN: 1461638Hom.: 2 Cov.: 31 AF XY: 0.0000701 AC XY: 51AN XY: 727146 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74348 show subpopulations
ClinVar
Submissions by phenotype
not specified Uncertain:1
The p.R525W variant (also known as c.1573C>T), located in coding exon 13 of the IKBKAP gene, results from a C to T substitution at nucleotide position 1573. The arginine at codon 525 is replaced by tryptophan, an amino acid with dissimilar properties. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 525 of the ELP1 protein (p.Arg525Trp). This variant is present in population databases (rs766737737, gnomAD 0.01%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with ELP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 571764). 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 ELP1 protein function with a negative predictive value of 80%. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at