Genetic Variant MLYCD:p.Gly89Gly (chr16-83899411-C-T) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_012213.3(MLYCD):c.267C>T(p.Gly89Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000153 in 1,516,124 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 2 hom. )

Consequence

MLYCD
NM_012213.3 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.12

Publications

0 publications found

Variant links:

Genes affected

MLYCD (HGNC:7150): (malonyl-CoA decarboxylase) The product of this gene catalyzes the breakdown of malonyl-CoA to acetyl-CoA and carbon dioxide. Malonyl-CoA is an intermediate in fatty acid biosynthesis, and also inhibits the transport of fatty acyl CoAs into mitochondria. Consequently, the encoded protein acts to increase the rate of fatty acid oxidation. It is found in mitochondria, peroxisomes, and the cytoplasm. Mutations in this gene result in malonyl-CoA decarboyxlase deficiency. [provided by RefSeq, Jul 2008]

MLYCD Gene-Disease associations (from GenCC):

malonic aciduria
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Orphanet, PanelApp Australia

MLYCD links:

ENSG00000288849 (HGNC:):

ENSG00000288849 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.38).

BP6

Variant 16-83899411-C-T is Benign according to our data. Variant chr16-83899411-C-T is described in ClinVar as Benign. ClinVar VariationId is 460444.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=1.12 with no splicing effect.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MLYCD	NM_012213.3 link	c.267C>T	p.Gly89Gly	synonymous_variant	Exon 1 of 5	ENST00000262430.6	NP_036345.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
MLYCD	ENST00000262430.6 link	c.267C>T	p.Gly89Gly	synonymous_variant	Exon 1 of 5	1	NM_012213.3	ENSP00000262430.4
ENSG00000288849	ENST00000689373.1 link	n.1202-7576C>T		intron_variant	Intron 5 of 8
ENSG00000288849	ENST00000692462.1 link	n.1170-7576C>T		intron_variant	Intron 5 of 8

Frequencies

GnomAD3 genomes

AF:

0.0000724

AC:

AN:

152004

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:

0.00207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000564

AC:

AN:

113490

AF XY:

0.000606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000196

Gnomad ASJ exome

AF:

0.000145

Gnomad EAS exome

AF:

0.000149

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000213

Gnomad OTH exome

AF:

0.000323

GnomAD4 exome

AF:

0.000162

AC:

221

AN:

1364012

Hom.:

Cov.:

AF XY:

0.000214

AC XY:

144

AN XY:

674400

show subpopulations

African (AFR)

AF:

0.0000355

AC:

AN:

28152

American (AMR)

AF:

0.000151

AC:

AN:

33084

Ashkenazi Jewish (ASJ)

AF:

0.0000837

AC:

AN:

23884

East Asian (EAS)

AF:

0.0000312

AC:

AN:

32020

South Asian (SAS)

AF:

0.00244

AC:

189

AN:

77308

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34474

Middle Eastern (MID)

AF:

0.000580

AC:

AN:

5172

European-Non Finnish (NFE)

AF:

0.00000559

AC:

AN:

1073164

Other (OTH)

AF:

0.000247

AC:

AN:

56754

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152112

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74374

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41538

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10574

Middle Eastern (MID)

AF:

0.00

AC:

AN:

290

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67926

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000943

Hom.:

Bravo

AF:

0.0000227

Asia WGS

AF:

0.00116

AC:

AN:

3462

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Deficiency of malonyl-CoA decarboxylase

Benign:1

Oct 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

MLYCD-related disorder

Benign:1

Jun 20, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Benign

0.95

PhyloP100

1.1

PromoterAI

-0.023

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over