3-25751206-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000280700.10(NGLY1):​c.550G>A​(p.Val184Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000397 in 1,612,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V184F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

NGLY1
ENST00000280700.10 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.661

Publications

4 publications found
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]
NGLY1 Gene-Disease associations (from GenCC):
  • congenital disorder of deglycosylation 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
  • NGLY1-deficiency
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.05684498).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000280700.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NGLY1
NM_018297.4
MANE Select
c.550G>Ap.Val184Ile
missense
Exon 4 of 12NP_060767.2
NGLY1
NM_001145293.2
c.550G>Ap.Val184Ile
missense
Exon 4 of 12NP_001138765.1
NGLY1
NM_001145294.2
c.424G>Ap.Val142Ile
missense
Exon 4 of 12NP_001138766.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NGLY1
ENST00000280700.10
TSL:1 MANE Select
c.550G>Ap.Val184Ile
missense
Exon 4 of 12ENSP00000280700.5
NGLY1
ENST00000428257.5
TSL:1
c.550G>Ap.Val184Ile
missense
Exon 4 of 12ENSP00000387430.1
NGLY1
ENST00000308710.9
TSL:1
c.541G>Ap.Val181Ile
missense
Exon 4 of 12ENSP00000307980.5

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152042
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
249566
AF XY:
0.00000741
show subpopulations
Gnomad AFR exome
AF:
0.000124
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000404
AC:
59
AN:
1460546
Hom.:
0
Cov.:
30
AF XY:
0.0000495
AC XY:
36
AN XY:
726558
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33424
American (AMR)
AF:
0.00
AC:
0
AN:
44582
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26094
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39606
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86030
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000477
AC:
53
AN:
1111408
Other (OTH)
AF:
0.0000994
AC:
6
AN:
60332
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152042
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74256
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41396
American (AMR)
AF:
0.00
AC:
0
AN:
15250
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000340
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Congenital disorder of deglycosylation (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
9.8
DANN
Benign
0.90
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.087
N
LIST_S2
Uncertain
0.86
D
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.057
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.1
L
PhyloP100
-0.66
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.23
N
REVEL
Benign
0.084
Sift
Benign
0.58
T
Sift4G
Benign
0.68
T
Polyphen
0.0020
B
Vest4
0.13
MutPred
0.28
Gain of glycosylation at Y185 (P = 0.0507)
MVP
0.16
MPC
0.032
ClinPred
0.032
T
GERP RS
0.47
PromoterAI
-0.0024
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.020
gMVP
0.095
Mutation Taster
=90/10
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs139636452; hg19: chr3-25792697; API