chr9-108902925-T-C
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_003640.5(ELP1):c.1768A>G(p.Ile590Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,613,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I590M) has been classified as Uncertain significance.
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 -5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt | 
|---|---|---|---|---|---|---|---|---|
| ELP1 | NM_003640.5 | c.1768A>G | p.Ile590Val | missense_variant | Exon 16 of 37 | ENST00000374647.10 | NP_003631.2 | |
| ELP1 | NM_001318360.2 | c.1426A>G | p.Ile476Val | missense_variant | Exon 16 of 37 | NP_001305289.1 | ||
| ELP1 | NM_001330749.2 | c.721A>G | p.Ile241Val | missense_variant | Exon 14 of 35 | NP_001317678.1 | ||
| ELP1 | XM_047423991.1 | c.1768A>G | p.Ile590Val | missense_variant | Exon 16 of 25 | XP_047279947.1 | 
Ensembl
Frequencies
GnomAD3 genomes  0.0000197  AC: 3AN: 152194Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000119  AC: 3AN: 251258 AF XY:  0.0000147   show subpopulations 
GnomAD4 exome  AF:  0.00000821  AC: 12AN: 1461608Hom.:  0  Cov.: 30 AF XY:  0.0000110  AC XY: 8AN XY: 727128 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000197  AC: 3AN: 152194Hom.:  0  Cov.: 32 AF XY:  0.0000269  AC XY: 2AN XY: 74362 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
not provided    Uncertain:2 
This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 590 of the ELP1 protein (p.Ile590Val). This variant is present in population databases (rs369856286, gnomAD 0.003%). 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: 575964). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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. -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Familial dysautonomia    Uncertain:1 
- -
not specified    Benign:1 
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. -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at