Variant chr6-49441871-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000274813.4(MMUT):c.1777G>C(p.Glu593Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,611,886 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

MMUT
ENST00000274813.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.57

Variant links:

Genes affected

MMUT (HGNC:7526): (methylmalonyl-CoA mutase) This gene encodes the mitochondrial enzyme methylmalonyl Coenzyme A mutase. In humans, the product of this gene is a vitamin B12-dependent enzyme which catalyzes the isomerization of methylmalonyl-CoA to succinyl-CoA, while in other species this enzyme may have different functions. Mutations in this gene may lead to various types of methylmalonic aciduria. [provided by RefSeq, Jul 2008]

MMUT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MMUT	NM_000255.4 linkuse as main transcript	c.1777G>C	p.Glu593Gln	missense_variant	10/13	ENST00000274813.4	NP_000246.2
MMUT	XM_005249143.4 linkuse as main transcript	c.1777G>C	p.Glu593Gln	missense_variant	10/13		XP_005249200.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MMUT	ENST00000274813.4 linkuse as main transcript	c.1777G>C	p.Glu593Gln	missense_variant	10/13	1	NM_000255.4	ENSP00000274813	P1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

151768

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000459

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000319

AC:

AN:

251148

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135756

show subpopulations

Gnomad AFR exome

AF:

0.000493

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1460004

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

726384

show subpopulations

Gnomad4 AFR exome

AF:

0.000479

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.000125

AC:

AN:

151882

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74256

show subpopulations

Gnomad4 AFR

AF:

0.000458

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000162

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 29, 2022

This sequence change replaces glutamic acid, which is acidic and polar, with glutamine, which is neutral and polar, at codon 593 of the MUT protein (p.Glu593Gln). This variant is present in population databases (rs148285323, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with MUT-related conditions. ClinVar contains an entry for this variant (Variation ID: 651129). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Methylmalonic aciduria due to complete methylmalonyl-CoA mutase deficiency

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Natera, Inc.

Aug 25, 2020

- -

Methylmalonic aciduria due to methylmalonyl-CoA mutase deficiency

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Mar 31, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.24

CADD

Benign

DANN

Uncertain

1.0

Eigen

Uncertain

0.24

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.083

MetaRNN

Uncertain

0.51

MetaSVM

Uncertain

0.29

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.7

REVEL

Uncertain

0.62

Sift

Benign

0.15

Sift4G

Benign

0.37

Vest4

0.74

MVP

0.91

MPC

0.097

ClinPred

0.23

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.83

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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