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GeneBe

rs181461044

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 2P and 14B. PM2BP4_ModerateBP6_Very_StrongBS1

The NM_018297.4(NGLY1):c.492+4A>T variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000694 in 1,613,930 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

NGLY1
NM_018297.4 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.6847
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.630
Variant links:
Genes affected
NGLY1 (HGNC:17646): (N-glycanase 1) This gene encodes an enzyme that catalyzes hydrolysis of an N(4)-(acetyl-beta-D-glucosaminyl) asparagine residue to N-acetyl-beta-D-glucosaminylamine and a peptide containing an aspartate residue. The encoded enzyme may play a role in the proteasome-mediated degradation of misfolded glycoproteins. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Feb 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 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 3-25764062-T-A is Benign according to our data. Variant chr3-25764062-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 474225.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000105 (16/152364) while in subpopulation EAS AF= 0.00308 (16/5188). AF 95% confidence interval is 0.00193. There are 0 homozygotes in gnomad4. There are 10 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NGLY1NM_018297.4 linkuse as main transcriptc.492+4A>T splice_donor_region_variant, intron_variant ENST00000280700.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NGLY1ENST00000280700.10 linkuse as main transcriptc.492+4A>T splice_donor_region_variant, intron_variant 1 NM_018297.4 P1Q96IV0-1

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
15
AN:
152246
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00288
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
GnomAD3 exomes
AF:
0.000235
AC:
59
AN:
250920
Hom.:
0
AF XY:
0.000206
AC XY:
28
AN XY:
135598
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00304
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.0000657
AC:
96
AN:
1461566
Hom.:
0
Cov.:
31
AF XY:
0.0000578
AC XY:
42
AN XY:
727066
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00207
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152364
Hom.:
0
Cov.:
33
AF XY:
0.000134
AC XY:
10
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00308
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.000117

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Congenital disorder of deglycosylation Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 28, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenFeb 01, 2023NGLY1: BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
Cadd
Benign
15
Dann
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.68
dbscSNV1_RF
Benign
0.57
SpliceAI score (max)
0.020
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: rs181461044; hg19: chr3-25805553; API