16-83915051-G-T

Position:

chr16-83915051-G-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_012213.3(MLYCD):c.1044G>T(p.Glu348Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00149 in 1,614,250 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0015 ( 5 hom. )

Consequence

MLYCD
NM_012213.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4O:1

Conservation

PhyloP100: -1.43

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0052485764).

BP6

Variant 16-83915051-G-T is Benign according to our data. Variant chr16-83915051-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 320731.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, not_provided=1, Uncertain_significance=1}. Variant chr16-83915051-G-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00111 (169/152358) while in subpopulation NFE AF= 0.0021 (143/68038). AF 95% confidence interval is 0.00182. There are 0 homozygotes in gnomad4. There are 74 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MLYCD	NM_012213.3 linkuse as main transcript	c.1044G>T	p.Glu348Asp	missense_variant	5/5	ENST00000262430.6	NP_036345.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MLYCD	ENST00000262430.6 linkuse as main transcript	c.1044G>T	p.Glu348Asp	missense_variant	5/5	1	NM_012213.3	ENSP00000262430	P1	O95822-1

Frequencies

GnomAD3 genomes

AF:

0.00111

AC:

169

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000470

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00210

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00119

AC:

296

AN:

249582

Hom.:

AF XY:

0.00112

AC XY:

152

AN XY:

135406

show subpopulations

Gnomad AFR exome

AF:

0.000452

Gnomad AMR exome

AF:

0.0000869

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00102

Gnomad NFE exome

AF:

0.00224

Gnomad OTH exome

AF:

0.00165

GnomAD4 exome

AF:

0.00153

AC:

2234

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00143

AC XY:

1042

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00129

Gnomad4 NFE exome

AF:

0.00187

Gnomad4 OTH exome

AF:

0.00108

GnomAD4 genome

AF:

0.00111

AC:

169

AN:

152358

Hom.:

Cov.:

AF XY:

0.000993

AC XY:

AN XY:

74510

show subpopulations

Gnomad4 AFR

AF:

0.000361

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000470

Gnomad4 NFE

AF:

0.00210

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00148

Hom.:

Bravo

AF:

0.00116

TwinsUK

AF:

0.00243

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000780

AC:

ESP6500EA

AF:

0.00169

AC:

ExAC

AF:

0.00161

AC:

194

EpiCase

AF:

0.00125

EpiControl

AF:

0.00190

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Deficiency of malonyl-CoA decarboxylase

Benign:2Other:1

not provided, no classification provided	phenotyping only	GenomeConnect, ClinGen	-	Variant interpreted as Uncertain significance and reported on 05-24-2018 by Lab or GTR ID 26957. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 05, 2020	In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -
Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jun 01, 2016	- -

MLYCD-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 05, 2023

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

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.47

CADD

Benign

0.074

DANN

Benign

0.59

DEOGEN2

Benign

0.066

Eigen

Benign

-2.0

Eigen_PC

Benign

-2.0

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.57

M_CAP

Uncertain

0.093

MetaRNN

Benign

0.0052

MetaSVM

Benign

-0.80

MutationAssessor

Benign

0.61

MutationTaster

Benign

0.97

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.23

REVEL

Benign

0.21

Sift

Benign

0.39

Sift4G

Benign

0.37

Polyphen

0.0020

Vest4

0.098

MutPred

0.55

Loss of helix (P = 0.1299);

MVP

0.69

MPC

0.018

ClinPred

0.0034

GERP RS

-6.6

Varity_R

0.095

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.16

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