rs875989859

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong

The ENST00000370841.9(ACADM):​c.347G>A​(p.Cys116Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,461,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C116G) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

ACADM
ENST00000370841.9 missense

Scores

14
4
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 9.54
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in ENST00000370841.9
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-75733587-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 226076.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=3, Uncertain_significance=2}.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.985
PP5
Variant 1-75733588-G-A is Pathogenic according to our data. Variant chr1-75733588-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 226068.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACADMNM_000016.6 linkuse as main transcriptc.347G>A p.Cys116Tyr missense_variant 5/12 ENST00000370841.9 NP_000007.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACADMENST00000370841.9 linkuse as main transcriptc.347G>A p.Cys116Tyr missense_variant 5/121 NM_000016.6 ENSP00000359878 P4P11310-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251440
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135888
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461798
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
727196
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:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000413
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Medium-chain acyl-coenzyme A dehydrogenase deficiency Pathogenic:6
Likely pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpAug 19, 2023Variant summary: ACADM c.347G>A (p.Cys116Tyr) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 251440 control chromosomes. c.347G>A has been reported in the literature as a biallelic compound heterozygous genotype in individuals affected with biochemically and clinically consistent features of Medium Chain Acyl-CoA Dehydrogenase Deficiency (example, Andresen_1997, ter Veld_2009, Al-Hassnan_2010, Dobrowlski_2017). These data indicate that the variant is likely to be associated with disease. To our knowledge, no variant specific experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 20567907, 9158144, 29285339, 19649258). Four submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 14, 2023This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 116 of the ACADM protein (p.Cys116Tyr). This variant is present in population databases (no rsID available, gnomAD 0.002%). This missense change has been observed in individual(s) with medium-chain acyl-coenzyme A dehydrogenase deficiency (PMID: 9158144, 19649258, 20567907, 29285339). This variant is also known as C91Y. ClinVar contains an entry for this variant (Variation ID: 226068). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt ACADM protein function with a positive predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesFeb 20, 2015- -
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 19, 2024- -
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Aug 16, 2017- -
Likely pathogenic, criteria provided, single submitterclinical testingCounsylOct 04, 2017- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2024ACADM: PM3:Very Strong, PM2, PP4:Moderate, PS3:Supporting -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.55
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.89
D;D;D;.
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D;D;D
M_CAP
Pathogenic
0.82
D
MetaRNN
Pathogenic
0.98
D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.0
.;H;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Pathogenic
-10
D;D;D;D
REVEL
Pathogenic
0.94
Sift
Uncertain
0.0020
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
1.0
D;D;D;D
Vest4
0.96
MVP
0.97
MPC
0.98
ClinPred
1.0
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.97
gMVP
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs875989859; hg19: chr1-76199273; COSMIC: COSV63721081; COSMIC: COSV63721081; API