5-79026492-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_013391.3(DMGDH):​c.2122G>A​(p.Asp708Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DMGDH
NM_013391.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.00
Variant links:
Genes affected
DMGDH (HGNC:24475): (dimethylglycine dehydrogenase) This gene encodes an enzyme involved in the catabolism of choline, catalyzing the oxidative demethylation of dimethylglycine to form sarcosine. The enzyme is found as a monomer in the mitochondrial matrix, and uses flavin adenine dinucleotide and folate as cofactors. Mutation in this gene causes dimethylglycine dehydrogenase deficiency, characterized by a fishlike body odor, chronic muscle fatigue, and elevated levels of the muscle form of creatine kinase in serum. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.38177276).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMGDHNM_013391.3 linkuse as main transcriptc.2122G>A p.Asp708Asn missense_variant 13/16 ENST00000255189.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMGDHENST00000255189.8 linkuse as main transcriptc.2122G>A p.Asp708Asn missense_variant 13/161 NM_013391.3 P1Q9UI17-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251408
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461866
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.00000270
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Dimethylglycine dehydrogenase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesMar 05, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.081
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.042
T;.
Eigen
Uncertain
0.19
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.38
T;T
MetaSVM
Benign
-0.54
T
MutationAssessor
Uncertain
2.5
M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.32
N;N
REVEL
Benign
0.21
Sift
Benign
0.33
T;T
Sift4G
Benign
0.50
T;T
Polyphen
0.17
B;.
Vest4
0.61
MutPred
0.41
Gain of catalytic residue at D708 (P = 0.0381);.;
MVP
0.82
MPC
0.28
ClinPred
0.92
D
GERP RS
5.3
Varity_R
0.43
gMVP
0.82

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs745629468; hg19: chr5-78322315; COSMIC: COSV54869361; API