rs1555529048

Variant names:

• chr17-7224822-CTGAG-C
• rs1555529048
• NM_000018.4:c.1770_1773delTGAG

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_000018.4(ACADVL):​c.1770_1773delTGAG​(p.Ser590ArgfsTer89) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000274 in 1,461,778 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★★). Synonymous variant affecting the same amino acid position (i.e. S590S) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: ACADVL NM_000018.4 frameshift
• Clinical Significance: Pathogenic reviewed by expert panel P:4
• Conservation: PhyloP100: 4.91
• Publications: 1 publications found

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: ClinGen, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 18 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 17-7224822-CTGAG-C is Pathogenic according to our data. Variant chr17-7224822-CTGAG-C is described in ClinVar as Pathogenic. ClinVar VariationId is 557136.Status of the report is reviewed_by_expert_panel, 3 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACADVL	NM_000018.4	MANE Select	c.1770_1773delTGAG	p.Ser590ArgfsTer89	frameshift	Exon 19 of 20	NP_000009.1	P49748-1
	ACADVL	NM_001270447.2		c.1839_1842delTGAG	p.Ser613ArgfsTer89	frameshift	Exon 20 of 21	NP_001257376.1	P49748-3
	ACADVL	NM_001033859.3		c.1704_1707delTGAG	p.Ser568ArgfsTer89	frameshift	Exon 18 of 19	NP_001029031.1	P49748-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACADVL	ENST00000356839.10	TSL:1 MANE Select	c.1770_1773delTGAG	p.Ser590ArgfsTer89	frameshift	Exon 19 of 20	ENSP00000349297.5	P49748-1
	ACADVL	ENST00000350303.9	TSL:1	c.1704_1707delTGAG	p.Ser568ArgfsTer89	frameshift	Exon 18 of 19	ENSP00000344152.5	P49748-2
	ACADVL	ENST00000543245.6	TSL:2	c.1839_1842delTGAG	p.Ser613ArgfsTer89	frameshift	Exon 20 of 21	ENSP00000438689.2	P49748-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251306 AF XY: 0.00

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: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461778 Hom.: 0 AF XY: 0.00000138 AC XY: 1 AN XY: 727194

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: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53306

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
4	-	-	Very long chain acyl-CoA dehydrogenase deficiency (4)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.9
Mutation Taster		=1/199	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1555529048; hg19: chr17-7128141;