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rs531346717

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6_ModerateBS1

The NM_001382.4(DPAGT1):c.918-8C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,614,130 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 1 hom. )

Consequence

DPAGT1
NM_001382.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001680
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.75
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 11-119097559-G-A is Benign according to our data. Variant chr11-119097559-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 473243.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.0000493 (72/1461842) while in subpopulation MID AF= 0.00225 (13/5768). AF 95% confidence interval is 0.00133. There are 1 homozygotes in gnomad4_exome. There are 42 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DPAGT1NM_001382.4 linkuse as main transcriptc.918-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000354202.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DPAGT1ENST00000354202.9 linkuse as main transcriptc.918-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_001382.4 P1Q9H3H5-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000636
AC:
16
AN:
251468
Hom.:
0
AF XY:
0.0000662
AC XY:
9
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000493
AC:
72
AN:
1461842
Hom.:
1
Cov.:
33
AF XY:
0.0000578
AC XY:
42
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.000153
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000278
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152288
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000102
Hom.:
0
Bravo
AF:
0.0000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

DPAGT1-congenital disorder of glycosylation;C3553645:Congenital myasthenic syndrome 13 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeMay 08, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
Cadd
Benign
8.9
Dann
Benign
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00017
dbscSNV1_RF
Benign
0.026
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: rs531346717; hg19: chr11-118968269; API