rs875989876

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong

The NM_000016.6(ACADM):c.464T>C(p.Met155Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,611,446 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. M155V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ACADM
NM_000016.6 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 6.10

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]

ACADM links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM1

In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 4 uncertain in NM_000016.6

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.847

PP5

Variant 1-75734867-T-C is Pathogenic according to our data. Variant chr1-75734867-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 226106.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACADM	NM_000016.6 link	c.464T>C	p.Met155Thr	missense_variant	Exon 6 of 12	ENST00000370841.9	NP_000007.1	P11310-1A0A0S2Z366

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACADM	ENST00000370841.9 link	c.464T>C	p.Met155Thr	missense_variant	Exon 6 of 12	1	NM_000016.6	ENSP00000359878.5		P11310-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152168

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1459278

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726104

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:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74354

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Medium-chain acyl-coenzyme A dehydrogenase deficiency

Pathogenic:4

Jan 13, 2024

Baylor Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 20, 2015

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 155 of the ACADM protein (p.Met155Thr). This variant is present in population databases (no rsID available, gnomAD 0.007%). This missense change has been observed in individual(s) with Medium-chain acyl-coenzyme A dehydrogenase deficiency (PMID: 15171998, 23028790; Invitae). ClinVar contains an entry for this variant (Variation ID: 226106). 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 not expected to disrupt ACADM protein function with a negative predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -

Nov 11, 2021

Myriad Genetics, Inc.

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

NM_000016.4(ACADM):c.464T>C(M155T) is a missense variant classified as likely pathogenic in the context of medium chain acyl-CoA dehydrogenase deficiency. M155T has been observed in cases with relevant disease (PMID: 15171998, 23028790, 31836396, 33580884, Neumann_2020_(no PMID; thesis)). Functional assessments of this variant are not available in the literature. M155T has been observed in population frequency databases (gnomAD: NFE 0.01%). In summary, NM_000016.4(ACADM):c.464T>C(M155T) is a missense variant that has been observed more frequently in cases with the relevant disease than in healthy populations. -

not provided

Pathogenic:1

Feb 03, 2022

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 23028790, 15171998, 33580884) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Pathogenic

0.49

BayesDel_noAF

Pathogenic

0.46

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.38

T;D;T;.

Eigen

Benign

0.060

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

D;D;D;D

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.85

D;D;D;D

MetaSVM

Uncertain

0.78

MutationAssessor

Benign

0.38

.;N;.;.

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-2.4

N;N;N;N

REVEL

Pathogenic

0.79

Sift

Uncertain

0.0050

D;D;D;D

Sift4G

Uncertain

0.040

D;D;D;D

Polyphen

0.19

B;B;B;B

Vest4

0.81

MutPred

0.66

.;.;Gain of phosphorylation at M188 (P = 0.0509);.;

MVP

0.86

MPC

0.33

ClinPred

0.80

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.71

gMVP

0.90

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over