rs644191

Variant names:

• chr5-79069264-G-A
• rs644191
• NM_013391.3:c.101+256C>T

Your query was ambiguous. Multiple possible variants found:

• chr5-79069264-G-A
• chr5-79069264-G-T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_013391.3(DMGDH):​c.101+256C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.833 in 152,270 control chromosomes in the GnomAD database, including 52,888 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.83 (52888 hom., cov: 33)
• Consequence: DMGDH NM_013391.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.725
• Publications: 2 publications found

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]

DMGDH Gene-Disease associations (from GenCC):

• dimethylglycine dehydrogenase deficiency

  Inheritance: AR Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.91 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013391.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DMGDH	NM_013391.3	MANE Select	c.101+256C>T		intron	N/A	NP_037523.2	Q9UI17-1
	DMGDH	NR_104002.3		n.155+256C>T		intron	N/A
	DMGDH	NR_104003.3		n.155+256C>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DMGDH	ENST00000255189.8	TSL:1 MANE Select	c.101+256C>T		intron	N/A	ENSP00000255189.3	Q9UI17-1
	DMGDH	ENST00000895914.1		c.112C>T	p.Arg38Cys	missense	Exon 2 of 17	ENSP00000565973.1
	DMGDH	ENST00000895909.1		c.101+256C>T		intron	N/A	ENSP00000565968.1

Frequencies

GnomAD3 genomes AF: 0.832 AC: 126656 AN: 152152 Hom.: 52830 Cov.: 33

Gnomad AFR AF: 0.860

Gnomad AMI AF: 0.918

Gnomad AMR AF: 0.810

Gnomad ASJ AF: 0.765

Gnomad EAS AF: 0.932

Gnomad SAS AF: 0.863

Gnomad FIN AF: 0.816

Gnomad MID AF: 0.867

Gnomad NFE AF: 0.816

Gnomad OTH AF: 0.828

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.833 AC: 126773 AN: 152270 Hom.: 52888 Cov.: 33 AF XY: 0.832 AC XY: 61955 AN XY: 74446

African (AFR) AF: 0.860 AC: 35721 AN: 41542

American (AMR) AF: 0.810 AC: 12403 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.765 AC: 2656 AN: 3472

East Asian (EAS) AF: 0.932 AC: 4831 AN: 5184

South Asian (SAS) AF: 0.863 AC: 4167 AN: 4828

European-Finnish (FIN) AF: 0.816 AC: 8653 AN: 10602

Middle Eastern (MID) AF: 0.871 AC: 256 AN: 294

European-Non Finnish (NFE) AF: 0.816 AC: 55495 AN: 68016

Other (OTH) AF: 0.829 AC: 1754 AN: 2116

Alfa AF: 0.825 Hom.: 31907

Bravo AF: 0.833

Asia WGS AF: 0.903 AC: 3140 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
CADD	Benign	1.1
DANN	Benign	0.35
PhyloP100		-0.72
PromoterAI		-0.051	Neutral
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs644191; hg19: chr5-78365087;