chr17-7220647-CCA-C

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_000018.4(ACADVL):​c.251_252delCA​(p.Thr84ArgfsTer19) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. T84T) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ACADVL
NM_000018.4 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 3.35

Publications

0 publications found
Variant links:
Genes affected
ACADVL (HGNC:92): (acyl-CoA dehydrogenase very long chain) The protein encoded by this gene is targeted to the inner mitochondrial membrane where it catalyzes the first step of the mitochondrial fatty acid beta-oxidation pathway. This acyl-Coenzyme A dehydrogenase is specific to long-chain and very-long-chain fatty acids. A deficiency in this gene product reduces myocardial fatty acid beta-oxidation and is associated with cardiomyopathy. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
ACADVL Gene-Disease associations (from GenCC):
  • very long chain acyl-CoA dehydrogenase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen, PanelApp Australia, Labcorp Genetics (formerly Invitae)

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ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 17-7220647-CCA-C is Pathogenic according to our data. Variant chr17-7220647-CCA-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 552315.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000018.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACADVL
NM_000018.4
MANE Select
c.251_252delCAp.Thr84ArgfsTer19
frameshift
Exon 4 of 20NP_000009.1
ACADVL
NM_001270447.2
c.320_321delCAp.Thr107ArgfsTer19
frameshift
Exon 5 of 21NP_001257376.1
ACADVL
NM_001033859.3
c.185_186delCAp.Thr62ArgfsTer19
frameshift
Exon 3 of 19NP_001029031.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACADVL
ENST00000356839.10
TSL:1 MANE Select
c.251_252delCAp.Thr84ArgfsTer19
frameshift
Exon 4 of 20ENSP00000349297.5
ACADVL
ENST00000350303.9
TSL:1
c.185_186delCAp.Thr62ArgfsTer19
frameshift
Exon 3 of 19ENSP00000344152.5
ACADVL
ENST00000543245.6
TSL:2
c.320_321delCAp.Thr107ArgfsTer19
frameshift
Exon 5 of 21ENSP00000438689.2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251480
AF XY:
0.00000736
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461892
Hom.:
0
AF XY:
0.00000688
AC XY:
5
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000629
AC:
7
AN:
1112012
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.439
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Very long chain acyl-CoA dehydrogenase deficiency Pathogenic:1
Jun 05, 2017
Counsyl
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
3.3
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1452339268; hg19: chr17-7123966; API