rs786204566

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000016.6(ACADM):​c.244dup​(p.Trp82LeufsTer23) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,613,730 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

ACADM
NM_000016.6 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:11

Conservation

PhyloP100: 7.85
Variant links:
Genes affected
ACADM (HGNC:89): (acyl-CoA dehydrogenase medium chain) This gene encodes the medium-chain specific (C4 to C12 straight chain) acyl-Coenzyme A dehydrogenase. The homotetramer enzyme catalyzes the initial step of the mitochondrial fatty acid beta-oxidation pathway. Defects in this gene cause medium-chain acyl-CoA dehydrogenase deficiency, a disease characterized by hepatic dysfunction, fasting hypoglycemia, and encephalopathy, which can result in infantile death. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 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 1-75732879-C-CT is Pathogenic according to our data. Variant chr1-75732879-C-CT is described in ClinVar as [Pathogenic]. Clinvar id is 188934.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACADMNM_000016.6 linkuse as main transcriptc.244dup p.Trp82LeufsTer23 frameshift_variant 4/12 ENST00000370841.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACADMENST00000370841.9 linkuse as main transcriptc.244dup p.Trp82LeufsTer23 frameshift_variant 4/121 NM_000016.6 P4P11310-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251126
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135824
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461598
Hom.:
0
Cov.:
32
AF XY:
0.0000165
AC XY:
12
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152132
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000227
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Medium-chain acyl-coenzyme A dehydrogenase deficiency Pathogenic:8
Pathogenic, no assertion criteria providedclinical testingCounsylOct 09, 2015- -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 09, 2023This sequence change creates a premature translational stop signal (p.Trp82Leufs*23) in the ACADM gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ACADM are known to be pathogenic (PMID: 16121256, 20434380). This variant is present in population databases (rs762524583, gnomAD 0.004%). This premature translational stop signal has been observed in individuals with medium-chain acyl-coenzyme A dehydrogenase deficiency (PMID: 11349232, 15171998, 15832312, 20036593, 23028790, 23095120). ClinVar contains an entry for this variant (Variation ID: 188934). For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpSep 28, 2017Variant summary: The ACADM c.244dupT (p.Trp82LeufsX23) variant results in a premature termination codon, predicted to cause a truncated or absent ACADM protein due to nonsense mediated decay, which are commonly known mechanisms for disease. This variant was found in 5/246114 control chromosomes at a frequency of 0.0000203, which does not exceed the estimated maximal expected allele frequency of a pathogenic ACADM variant (0.0054233). Multiple publications have cited the variant in affected compound heterozygote and homozygote patients. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as likely pathogenic/pathogenic. Taken together, this variant is classified as pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingCentre for Mendelian Genomics, University Medical Centre LjubljanaOct 01, 2018This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PVS1,PS1,PM2. -
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 20, 2024- -
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.May 20, 2019- -
Pathogenic, criteria provided, single submitterclinical testingLaboratory of Medical Genetics, National & Kapodistrian University of AthensMay 16, 2023PVS1, PS3, PM2, PP5 -
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJan 14, 2022- -
not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2023ACADM: PVS1, PM2 -
Pathogenic, criteria provided, single submitterclinical testingGeneDxDec 30, 2022Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 23095120, 15832312, 15171998, 22542437, 29350094, 23028790, 18241067, 20036593, 11349232, 34426522) -
Pathogenic, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 01, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs786204566; hg19: chr1-76198564; API