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GeneBe

rs222504

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_024312.5(GNPTAB):c.27G>C(p.Gln9His) variant causes a missense change. The variant allele was found at a frequency of 0.00000559 in 1,610,778 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Q9Q) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

GNPTAB
NM_024312.5 missense

Scores

2
7
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.38
Variant links:
Genes affected
GNPTAB (HGNC:29670): (N-acetylglucosamine-1-phosphate transferase subunits alpha and beta) This gene encodes two of three subunit types of the membrane-bound enzyme N-acetylglucosamine-1-phosphotransferase, a heterohexameric complex composed of two alpha, two beta, and two gamma subunits. The encoded protein is proteolytically cleaved at the Lys928-Asp929 bond to yield mature alpha and beta polypeptides while the gamma subunits are the product of a distinct gene (GeneID 84572). In the Golgi apparatus, the heterohexameric complex catalyzes the first step in the synthesis of mannose 6-phosphate recognition markers on certain oligosaccharides of newly synthesized lysosomal enzymes. These recognition markers are essential for appropriate trafficking of lysosomal enzymes. Mutations in this gene have been associated with both mucolipidosis II and mucolipidosis IIIA.[provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 3 uncertain in NM_024312.5
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GNPTABNM_024312.5 linkuse as main transcriptc.27G>C p.Gln9His missense_variant 1/21 ENST00000299314.12
GNPTABXM_006719593.4 linkuse as main transcriptc.27G>C p.Gln9His missense_variant 1/19

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GNPTABENST00000299314.12 linkuse as main transcriptc.27G>C p.Gln9His missense_variant 1/211 NM_024312.5 P1Q3T906-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151988
Hom.:
0
Cov.:
31
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000736
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000807
AC:
2
AN:
247818
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134534
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000180
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1458790
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
725954
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151988
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74252
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000736
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000552
Hom.:
127
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Uncertain
-0.080
Cadd
Uncertain
23
Dann
Uncertain
0.98
DEOGEN2
Benign
0.27
T;.;T;.
Eigen
Benign
-0.0034
Eigen_PC
Benign
-0.079
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.77
T;T;T;T
M_CAP
Pathogenic
0.39
D
MetaRNN
Uncertain
0.62
D;D;D;D
MetaSVM
Benign
-0.54
T
MutationAssessor
Uncertain
2.1
M;M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-2.0
N;N;D;D
REVEL
Uncertain
0.36
Sift
Benign
0.12
T;T;T;T
Sift4G
Benign
0.11
T;T;D;D
Polyphen
0.99
D;D;.;.
Vest4
0.64
MutPred
0.29
Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);
MVP
0.68
MPC
0.58
ClinPred
0.72
D
GERP RS
3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.33
gMVP
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs222504; hg19: chr12-102224427; API