rs6748672

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_032601.4(MCEE):​c.311G>T​(p.Arg104Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.173 in 1,613,596 control chromosomes in the GnomAD database, including 25,168 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.18 ( 2680 hom., cov: 33)
Exomes 𝑓: 0.17 ( 22488 hom. )

Consequence

MCEE
NM_032601.4 missense

Scores

4
14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.801
Variant links:
Genes affected
MCEE (HGNC:16732): (methylmalonyl-CoA epimerase) The product of this gene catalyzes the interconversion of D- and L-methylmalonyl-CoA during the degradation of branched chain amino acids. odd chain-length fatty acids, and other metabolites. Mutations in this gene result in methylmalonyl-CoA epimerase deficiency, which is presented as mild to moderate methylmalonic aciduria. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0028464198).
BP6
Variant 2-71124273-C-A is Benign according to our data. Variant chr2-71124273-C-A is described in ClinVar as [Benign]. Clinvar id is 138183.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.217 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MCEENM_032601.4 linkc.311G>T p.Arg104Leu missense_variant Exon 2 of 3 ENST00000244217.6 NP_115990.3 Q96PE7
MCEEXM_047446039.1 linkc.311G>T p.Arg104Leu missense_variant Exon 2 of 3 XP_047301995.1
MCEEXM_005264613.3 linkc.216+95G>T intron_variant Intron 2 of 2 XP_005264670.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MCEEENST00000244217.6 linkc.311G>T p.Arg104Leu missense_variant Exon 2 of 3 1 NM_032601.4 ENSP00000244217.5 Q96PE7
MCEEENST00000486135.1 linkc.26G>T p.Arg9Leu missense_variant Exon 3 of 3 3 ENSP00000441569.1 F5GZ54
MCEEENST00000494660.6 linkc.26G>T p.Arg9Leu missense_variant Exon 2 of 2 2 ENSP00000437361.1 F5GZ54
MCEEENST00000413592.5 linkc.84+95G>T intron_variant Intron 1 of 1 2 ENSP00000391140.1 H7BZS7

Frequencies

GnomAD3 genomes
AF:
0.182
AC:
27671
AN:
152066
Hom.:
2675
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.221
Gnomad AMI
AF:
0.211
Gnomad AMR
AF:
0.179
Gnomad ASJ
AF:
0.164
Gnomad EAS
AF:
0.198
Gnomad SAS
AF:
0.207
Gnomad FIN
AF:
0.0917
Gnomad MID
AF:
0.153
Gnomad NFE
AF:
0.170
Gnomad OTH
AF:
0.191
GnomAD3 exomes
AF:
0.171
AC:
43015
AN:
251120
Hom.:
3898
AF XY:
0.173
AC XY:
23463
AN XY:
135782
show subpopulations
Gnomad AFR exome
AF:
0.225
Gnomad AMR exome
AF:
0.173
Gnomad ASJ exome
AF:
0.158
Gnomad EAS exome
AF:
0.179
Gnomad SAS exome
AF:
0.204
Gnomad FIN exome
AF:
0.0954
Gnomad NFE exome
AF:
0.169
Gnomad OTH exome
AF:
0.172
GnomAD4 exome
AF:
0.172
AC:
252075
AN:
1461412
Hom.:
22488
Cov.:
33
AF XY:
0.173
AC XY:
125908
AN XY:
727016
show subpopulations
Gnomad4 AFR exome
AF:
0.219
Gnomad4 AMR exome
AF:
0.177
Gnomad4 ASJ exome
AF:
0.159
Gnomad4 EAS exome
AF:
0.217
Gnomad4 SAS exome
AF:
0.204
Gnomad4 FIN exome
AF:
0.0994
Gnomad4 NFE exome
AF:
0.170
Gnomad4 OTH exome
AF:
0.176
GnomAD4 genome
AF:
0.182
AC:
27690
AN:
152184
Hom.:
2680
Cov.:
33
AF XY:
0.178
AC XY:
13259
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.221
Gnomad4 AMR
AF:
0.178
Gnomad4 ASJ
AF:
0.164
Gnomad4 EAS
AF:
0.199
Gnomad4 SAS
AF:
0.207
Gnomad4 FIN
AF:
0.0917
Gnomad4 NFE
AF:
0.170
Gnomad4 OTH
AF:
0.195
Alfa
AF:
0.168
Hom.:
3537
Bravo
AF:
0.188
TwinsUK
AF:
0.170
AC:
632
ALSPAC
AF:
0.177
AC:
681
ESP6500AA
AF:
0.228
AC:
1003
ESP6500EA
AF:
0.168
AC:
1449
ExAC
AF:
0.174
AC:
21100
EpiCase
AF:
0.174
EpiControl
AF:
0.177

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency Benign:3
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 05, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
Aug 26, 2013
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Mar 29, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: 17% of total chromosomes in ExAC -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
8.9
DANN
Benign
0.97
DEOGEN2
Benign
0.27
T;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.33
N
LIST_S2
Uncertain
0.97
D;.;D
MetaRNN
Benign
0.0028
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.46
N;.;.
PrimateAI
Benign
0.27
T
PROVEAN
Uncertain
-2.5
D;N;N
REVEL
Benign
0.088
Sift
Uncertain
0.024
D;D;D
Sift4G
Uncertain
0.035
D;D;D
Polyphen
0.010
B;.;.
Vest4
0.038
MPC
0.13
ClinPred
0.0053
T
GERP RS
-4.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.082
gMVP
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs6748672; hg19: chr2-71351403; COSMIC: COSV54905236; API