dbSNP rs1212880594: MLYCD:p.Met185Val (chr16-83907011-A-G) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_012213.3(MLYCD):c.553A>G(p.Met185Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,858 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M185L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MLYCD
NM_012213.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.39

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: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.773

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MLYCD	NM_012213.3 link	c.553A>G	p.Met185Val	missense_variant	Exon 2 of 5	ENST00000262430.6	NP_036345.2	O95822-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MLYCD	ENST00000262430.6 link	c.553A>G	p.Met185Val	missense_variant	Exon 2 of 5	1	NM_012213.3	ENSP00000262430.4	O95822-1
ENSG00000288849	ENST00000689373.1 link	n.1226A>G		non_coding_transcript_exon_variant	Exon 6 of 9
ENSG00000288849	ENST00000692462.1 link	n.1194A>G		non_coding_transcript_exon_variant	Exon 6 of 9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111982

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.34

BayesDel_addAF

Uncertain

0.097

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.26

Eigen

Benign

0.12

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.77

MetaSVM

Uncertain

0.29

MutationAssessor

Benign

1.9

PhyloP100

3.4

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-1.8

REVEL

Uncertain

0.54

Sift

Benign

0.037

Sift4G

Benign

0.10

Polyphen

0.56

Vest4

0.71

MutPred

0.69

Loss of ubiquitination at K183 (P = 0.0787);

MVP

0.92

MPC

0.022

ClinPred

0.65

GERP RS

5.2

Varity_R

0.72

gMVP

0.55

Mutation Taster

=65/35

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over