17-7222826-G-A

Position:

• chr17-7222826-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BA1 BP4 BP7

This summary comes from the ClinGen Evidence Repository: The c.1038G>A variant in ACADVL is a synonymous variant which occurs in exon 10. The highest population minor allele frequency in gnomAD v2.1.1 is 0.08089 in the African/African American population, which is higher than the ClinGen ACADVL Variant Curation Expert Panel threshold (≥0.007) for BA1, and therefore meets this criterion (BA1). The results from 2 in silico splicing predictors (SpliceAI, MutationTaster) support that this variant does not affect splicing. In addition, it occurs at a nucleotide that is not conserved as shown by the 100 vertebrate Basewise Conservation by PhyloP track in the UCSC genome browser (BP4, BP7). In summary, this variant meets the criteria to be classified as benign for autosomal recessive very long chain acyl-CoA dehydrogenase (VLCAD) deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen ACADVL Variant Curation Expert Panel: BA1, BP4, BP7 (VCEP specifications v2.0, approved on 09/16/2021). LINK:https://erepo.genome.network/evrepo/ui/classification/CA145601/MONDO:0008723/021

• Frequency:
  • Genomes: 𝑓 0.022 (149 hom., cov: 32)
  • Exomes 𝑓: 0.0026 (134 hom.)
• Consequence: ACADVL NM_000018.4 synonymous
• Clinical Significance: Benign reviewed by expert panel B:10
• Conservation: PhyloP100: -2.70

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]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP4: For more information check the summary or visit ClinGen Evidence Repository.
• BP7: For more information check the summary or visit ClinGen Evidence Repository.
• BA1: For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACADVL	NM_000018.4	c.1038G>A	p.Ala346=	synonymous_variant	10/20	ENST00000356839.10	NP_000009.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACADVL	ENST00000356839.10	c.1038G>A	p.Ala346=	synonymous_variant	10/20	1	NM_000018.4	ENSP00000349297	P1

Frequencies

GnomAD3 genomes AF: 0.0223 AC: 3390 AN: 152066 Hom.: 150 Cov.: 32

Gnomad AFR AF: 0.0773

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00955

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000353

Gnomad OTH AF: 0.00864

GnomAD3 exomes AF: 0.00642 AC: 1613 AN: 251082 Hom.: 64 AF XY: 0.00473 AC XY: 642 AN XY: 135754

Gnomad AFR exome AF: 0.0850

Gnomad AMR exome AF: 0.00483

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000163

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000361

Gnomad OTH exome AF: 0.00326

GnomAD4 exome AF: 0.00257 AC: 3748 AN: 1461020 Hom.: 134 Cov.: 32 AF XY: 0.00220 AC XY: 1601 AN XY: 726832

Gnomad4 AFR exome AF: 0.0869

Gnomad4 AMR exome AF: 0.00559

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.000162

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000211

Gnomad4 OTH exome AF: 0.00529

GnomAD4 genome AF: 0.0223 AC: 3388 AN: 152184 Hom.: 149 Cov.: 32 AF XY: 0.0213 AC XY: 1585 AN XY: 74410

Gnomad4 AFR AF: 0.0771

Gnomad4 AMR AF: 0.00954

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000353

Gnomad4 OTH AF: 0.00855

Alfa AF: 0.00663 Hom.: 42

Bravo AF: 0.0261

Asia WGS AF: 0.00375 AC: 14 AN: 3478

EpiCase AF: 0.000382

EpiControl AF: 0.000474

ClinVar

Significance: Benign

Submissions summary: Benign:10

Revision: reviewed by expert panel

Submissions by phenotype

Very long chain acyl-CoA dehydrogenase deficiency Benign:5

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 29, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, reviewed by expert panel	curation	ClinGen ACADVL Variant Curation Expert Panel, ClinGen	Mar 08, 2022	The c.1038G>A variant in ACADVL is a synonymous variant which occurs in exon 10. The highest population minor allele frequency in gnomAD v2.1.1 is 0.08089 in the African/African American population, which is higher than the ClinGen ACADVL Variant Curation Expert Panel threshold (≥0.007) for BA1, and therefore meets this criterion (BA1). The results from 2 in silico splicing predictors (SpliceAI, MutationTaster) support that this variant does not affect splicing. In addition, it occurs at a nucleotide that is not conserved as shown by the 100 vertebrate Basewise Conservation by PhyloP track in the UCSC genome browser (BP4, BP7). In summary, this variant meets the criteria to be classified as benign for autosomal recessive very long chain acyl-CoA dehydrogenase (VLCAD) deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen ACADVL Variant Curation Expert Panel: BA1, BP4, BP7 (VCEP specifications v2.0, approved on 09/16/2021). -
Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Feb 01, 2024	- -

not specified Benign:3

Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jan 02, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 20, 2014	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.30
DANN	Benign	0.81
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		3.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs8064573; hg19: chr17-7126145;