chr5-79030927-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_013391.3(DMGDH):​c.1589C>T​(p.Ala530Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,613,762 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. A530G) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

DMGDH
NM_013391.3 missense

Scores

2
11
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.09
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.776

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMGDHNM_013391.3 linkuse as main transcriptc.1589C>T p.Ala530Val missense_variant 10/16 ENST00000255189.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMGDHENST00000255189.8 linkuse as main transcriptc.1589C>T p.Ala530Val missense_variant 10/161 NM_013391.3 P1Q9UI17-1
DMGDHENST00000523732.1 linkuse as main transcriptc.1106C>T p.Ala369Val missense_variant 7/121
DMGDHENST00000517853.5 linkuse as main transcriptc.*351C>T 3_prime_UTR_variant, NMD_transcript_variant 5/102
DMGDHENST00000518477.5 linkuse as main transcriptc.*823C>T 3_prime_UTR_variant, NMD_transcript_variant 7/122

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151946
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
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
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461816
Hom.:
0
Cov.:
35
AF XY:
0.00000550
AC XY:
4
AN XY:
727204
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151946
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74210
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.50
BayesDel_addAF
Uncertain
0.051
T
BayesDel_noAF
Benign
-0.16
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.37
T;.
Eigen
Benign
-0.10
Eigen_PC
Benign
0.068
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Pathogenic
0.37
D
MetaRNN
Pathogenic
0.78
D;D
MetaSVM
Uncertain
-0.050
T
MutationAssessor
Benign
0.20
N;.
MutationTaster
Benign
0.95
P;P;P
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.0
D;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.15
B;.
Vest4
0.39
MutPred
0.86
Gain of catalytic residue at Q527 (P = 0.0778);.;
MVP
0.69
MPC
0.15
ClinPred
0.95
D
GERP RS
5.9
Varity_R
0.74
gMVP
0.89

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: rs1805073; hg19: chr5-78326750; API