rs896612042

Variant names:

• chr11-119097017-C-T
• rs896612042
• NM_001382.4:c.1208G>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001382.4(DPAGT1):​c.1208G>A​(p.Arg403Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,613,988 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000049 (1 hom.)
• Consequence: DPAGT1 NM_001382.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 7.35
• Publications: 0 publications found

Genes affected

DPAGT1 (HGNC:2995): (dolichyl-phosphate N-acetylglucosaminephosphotransferase 1) The protein encoded by this gene is an enzyme that catalyzes the first step in the dolichol-linked oligosaccharide pathway for glycoprotein biosynthesis. This enzyme belongs to the glycosyltransferase family 4. This protein is an integral membrane protein of the endoplasmic reticulum. The congenital disorder of glycosylation type Ij is caused by mutation in the gene encoding this enzyme. [provided by RefSeq, Jul 2008]

DPAGT1 Gene-Disease associations (from GenCC):

• congenital myasthenic syndrome 13

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• DPAGT1-congenital disorder of glycosylation

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
• congenital myasthenic syndromes with glycosylation defect

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001382.4. 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
	DPAGT1	NM_001382.4	MANE Select	c.1208G>A	p.Arg403Gln	missense	Exon 9 of 9	NP_001373.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DPAGT1	ENST00000354202.9	TSL:1 MANE Select	c.1208G>A	p.Arg403Gln	missense	Exon 9 of 9	ENSP00000346142.4	Q9H3H5-1
	DPAGT1	ENST00000409993.6	TSL:2	c.1208G>A	p.Arg403Gln	missense	Exon 11 of 11	ENSP00000386597.2	Q9H3H5-1
	DPAGT1	ENST00000867497.1		c.1208G>A	p.Arg403Gln	missense	Exon 10 of 10	ENSP00000537556.1

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152114 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251310 AF XY: 0.0000221

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000486 AC: 71 AN: 1461874 Hom.: 1 Cov.: 30 AF XY: 0.0000440 AC XY: 32 AN XY: 727234

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000612 AC: 68 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152114 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74308

African (AFR) AF: 0.0000241 AC: 1 AN: 41420

American (AMR) AF: 0.00 AC: 0 AN: 15260

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.000142 Hom.: 0

Bravo AF: 0.0000189

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	DPAGT1-congenital disorder of glycosylation;C3553645:Congenital myasthenic syndrome 13 (1)
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.11
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.15	T
Eigen	Benign	0.17
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.97	D
M_CAP	Uncertain	0.16	D
MetaRNN	Uncertain	0.53	D
MetaSVM	Uncertain	0.18	D
MutationAssessor	Uncertain	2.2	M
PhyloP100		7.3
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	-0.24	N
REVEL	Uncertain	0.44
Sift	Benign	0.31	T
Sift4G	Benign	0.41	T
Polyphen		0.33	B
Vest4		0.66
MutPred		0.49		Loss of MoRF binding (P = 0.0021)
MVP		0.96
MPC		1.1
ClinPred		0.65	D
GERP RS		5.6
Varity_R		0.42
gMVP		0.62
Mutation Taster		=66/34	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs896612042; hg19: chr11-118967727;