rs200771970
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_000018.4(ACADVL):c.1532G>A(p.Arg511Gln) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_000018.4 missense, splice_region
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: 0.0000131 AC: 2AN: 152174Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461474Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2AN XY: 727060
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152174Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74342
ClinVar
Submissions by phenotype
Very long chain acyl-CoA dehydrogenase deficiency Pathogenic:7
Variant summary: ACADVL c.1532G>A (p.Arg511Gln) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. Several computational tools predict a significant impact on normal splicing: Three predict the variant abolishes a canonical 5' splicing donor site. However, these predictions have yet to be confirmed by functional studies. The variant was absent in 250926 control chromosomes (gnomAD). c.1532G>A has been reported in the literature in individuals affected with Very Long Chain Acyl-CoA Dehydrogenase Deficiency (examples: Tajima_2008, Li_2015, Jinjun_2015, Pena_2016, Kang_2018, Osawa_2022). These data indicate that the variant is likely to be associated with disease. The following publications have been ascertained in the context of this evaluation (PMID: 21932095, 29519241, 25652019, 35400565, 27209629, 18670371, 26182500). ClinVar contains an entry for this variant (Variation ID: 203587). Based on the evidence outlined above, the variant was classified as likely pathogenic. -
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This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 511 of the ACADVL protein (p.Arg511Gln). This variant also falls at the last nucleotide of exon 15, which is part of the consensus splice site for this exon. This variant is present in population databases (rs200771970, gnomAD 0.008%). This missense change has been observed in individual(s) with VLCAD deficiency (PMID: 2951924, 21932095, 25652019, 26182500, 26385305, 27209629). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 203587). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -
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The NM_000018.3:c.1532G>A (NP_000009.1:p.Arg511Gln) [GRCH38: NC_000017.11:g.7224243G>A] variant in ACADVL gene is interpretated to be Pathogenic based on ACMG guidelines (PMID: 25741868). This variant has been reported in PMID: 21932095 . This variant meets the following evidence codes reported in the ACMG guidelines: PS1, PS3 -
not provided Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at