rs193302860

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS1_Supporting

The NM_032520.5(GNPTG):​c.857C>T​(p.Thr286Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00014 in 1,614,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. T286A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

GNPTG
NM_032520.5 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6O:1

Conservation

PhyloP100: -0.167

Publications

6 publications found
Variant links:
Genes affected
GNPTG (HGNC:23026): (N-acetylglucosamine-1-phosphate transferase subunit gamma) This gene encodes the gamma sunbunit of the N-acetylglucosamine-1-phosphotransferase complex. This hexameric complex, composed of alpha, beta and gamma subunits, catalyzes the first step in synthesis of a mannose 6-phosphate lysosomal recognition marker. This enzyme complex is necessary for targeting of lysosomal hydrolases to the lysosome. Mutations in the gene encoding the gamma subunit have been associated with mucolipidosis IIIC, also known as mucolipidosis III gamma.[provided by RefSeq, Feb 2010]
UNKL (HGNC:14184): (unk like zinc finger) This gene encodes a RING finger protein that may function in Rac signaling. It can bind to Brg/Brm-associated factor 60b and can promote its ubiquitination. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jun 2013]
UNKL Gene-Disease associations (from GenCC):
  • Tourette syndrome
    Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.33453318).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000394 (60/152204) while in subpopulation AFR AF = 0.000987 (41/41528). AF 95% confidence interval is 0.000747. There are 0 homozygotes in GnomAd4. There are 31 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032520.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GNPTG
NM_032520.5
MANE Select
c.857C>Tp.Thr286Met
missense
Exon 11 of 11NP_115909.1Q9UJJ9
UNKL
NM_001372107.1
MANE Select
c.*3210G>A
downstream_gene
N/ANP_001359036.1A0A0A0MRZ1
UNKL
NM_001193388.4
c.*3210G>A
downstream_gene
N/ANP_001180317.2E9PDK2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GNPTG
ENST00000204679.9
TSL:1 MANE Select
c.857C>Tp.Thr286Met
missense
Exon 11 of 11ENSP00000204679.4Q9UJJ9
GNPTG
ENST00000891792.1
c.977C>Tp.Thr326Met
missense
Exon 12 of 12ENSP00000561851.1
GNPTG
ENST00000529110.2
TSL:2
c.941C>Tp.Thr314Met
missense
Exon 10 of 10ENSP00000435349.2H0YEA7

Frequencies

GnomAD3 genomes
AF:
0.000388
AC:
59
AN:
152086
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000195
AC:
49
AN:
251280
AF XY:
0.000199
show subpopulations
Gnomad AFR exome
AF:
0.000616
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000255
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000114
AC:
166
AN:
1461824
Hom.:
0
Cov.:
32
AF XY:
0.000124
AC XY:
90
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.000478
AC:
16
AN:
33476
American (AMR)
AF:
0.000268
AC:
12
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53366
Middle Eastern (MID)
AF:
0.00225
AC:
13
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000899
AC:
100
AN:
1112006
Other (OTH)
AF:
0.000364
AC:
22
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
12
24
37
49
61
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:
0.000394
AC:
60
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.000417
AC XY:
31
AN XY:
74404
show subpopulations
African (AFR)
AF:
0.000987
AC:
41
AN:
41528
American (AMR)
AF:
0.000523
AC:
8
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5152
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.000189
AC:
2
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68026
Other (OTH)
AF:
0.000474
AC:
1
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
5
11
16
22
27
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:
0.000327
Hom.:
1
Bravo
AF:
0.000457
ESP6500AA
AF:
0.000455
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000272
AC:
33
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
GNPTG-mucolipidosis (4)
-
2
-
not provided (2)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
11
DANN
Benign
0.90
DEOGEN2
Benign
0.16
T
Eigen
Benign
-0.76
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.41
T
M_CAP
Benign
0.085
D
MetaRNN
Benign
0.33
T
MetaSVM
Benign
-0.42
T
MutationAssessor
Benign
1.6
L
PhyloP100
-0.17
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.28
N
REVEL
Uncertain
0.34
Sift
Benign
0.23
T
Sift4G
Benign
0.27
T
Polyphen
0.98
D
Vest4
0.086
MVP
0.82
MPC
0.0069
ClinPred
0.0064
T
GERP RS
-1.9
Varity_R
0.0092
gMVP
0.29
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs193302860; hg19: chr16-1413031; API