chr17-7223859-G-A
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_000018.4(ACADVL):c.1316G>A(p.Gly439Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000372 in 1,614,086 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 Likely pathogenic (★★).
Frequency
Consequence
NM_000018.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152150Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 251404Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135876
GnomAD4 exome AF: 0.0000390 AC: 57AN: 1461818Hom.: 0 Cov.: 33 AF XY: 0.0000385 AC XY: 28AN XY: 727204
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152268Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74446
ClinVar
Submissions by phenotype
Very long chain acyl-CoA dehydrogenase deficiency Pathogenic:5
The NM_000018.3:c.1316G>A (NP_000009.1:p.Gly439Asp) [GRCH38: NC_000017.11:g.7223859G>A] variant in ACADVL gene is interpretated to be Pathogenic based on ACMG guidelines (PMID: 25741868). This variant has been reported in PMID: 20060901. This variant meets the following evidence codes reported in the ACMG guidelines: PS1, PS3 -
The ACADVL c.1316G>A; p.Gly439Asp variant (rs533055438) is reported in the literature in the compound heterozygous state in individuals diagnosed with VLCAD deficiency (Gobin-Limballe 2010, Pena 2016, Schiff 2013). This variant is reported in ClinVar (Variation ID: 203582), and found in the general population with an allele frequency of 0.002% (6/277134 alleles) in the Genome Aggregation Database. Computational analyses predict that this variant is deleterious (REVEL: 0.964), and functional analyses of the variant protein show no enzyme activity (Schiff 2013). Based on available information, this variant is considered pathogenic. References: Gobin-Limballe S et al. Compared effects of missense mutations in Very-Long-Chain Acyl-CoA Dehydrogenase deficiency: Combined analysis by structural, functional and pharmacological approaches. Biochim Biophys Acta. 2010 May;1802(5):478-84. PMID: 20060901. Pena LD et al. Outcomes and genotype-phenotype correlations in 52 individuals with VLCAD deficiency diagnosed by NBS and enrolled in the IBEM-IS database. Mol Genet Metab. 2016 Aug;118(4):272-81. PMID: 27209629. Schiff M et al. Molecular and cellular pathology of very-long-chain acyl-CoA dehydrogenase deficiency. Mol Genet Metab. 2013 May;109(1):21-7. PMID: 23480858. -
This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 439 of the ACADVL protein (p.Gly439Asp). This variant is present in population databases (rs533055438, gnomAD 0.005%). This missense change has been observed in individual(s) with very long chain acyl-CoA dehydrogenase deficiency (PMID: 17999356, 23480858; internal data). ClinVar contains an entry for this variant (Variation ID: 203582). 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) indicates that this missense variant is expected to disrupt ACADVL protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects ACADVL function (PMID: 23480858). This variant disrupts the p.Gly439 amino acid residue in ACADVL. Other variant(s) that disrupt this residue have been observed in individuals with ACADVL-related conditions (internal data), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic. -
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not provided Pathogenic:1Uncertain:1
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Expression of G439D in E. coli found no detectable enzyme activity compared to wild-type controls (PMID: 23480858); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 30925787, 23169530, 27209629, 30194637, 31031081, 20060901, 23480858, 17999356) -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at