Variant NM_032520.5:c.-10C>A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_032520.5(GNPTG):c.-10C>A variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.001 in 1,291,514 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00052 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0011 ( 5 hom. )

Consequence

GNPTG
NM_032520.5 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2B:1

Conservation

PhyloP100: 0.588

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]

GNPTG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000521 (79/151746) while in subpopulation NFE AF= 0.000958 (65/67880). AF 95% confidence interval is 0.00077. There are 0 homozygotes in gnomad4. There are 33 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GNPTG	NM_032520.5 link	c.-10C>A		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 11	ENST00000204679.9	NP_115909.1	Q9UJJ9
GNPTG	NM_032520.5 link	c.-10C>A		5_prime_UTR_variant	Exon 1 of 11	ENST00000204679.9	NP_115909.1	Q9UJJ9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GNPTG	ENST00000204679 link	c.-10C>A		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 11	1	NM_032520.5	ENSP00000204679.4		Q9UJJ9
GNPTG	ENST00000204679 link	c.-10C>A		5_prime_UTR_variant	Exon 1 of 11	1	NM_032520.5	ENSP00000204679.4		Q9UJJ9

Frequencies

GnomAD3 genomes

AF:

0.000521

AC:

AN:

151640

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000957

Gnomad OTH

AF:

0.000960

GnomAD3 exomes

AF:

0.000722

AC:

AN:

11088

Hom.:

AF XY:

0.00113

AC XY:

AN XY:

7078

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:

0.00133

Gnomad OTH exome

AF:

0.00543

GnomAD4 exome

AF:

0.00107

AC:

1215

AN:

1139768

Hom.:

Cov.:

AF XY:

0.00104

AC XY:

573

AN XY:

549150

show subpopulations

Gnomad4 AFR exome

AF:

0.0000874

Gnomad4 AMR exome

AF:

0.000210

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:

0.00122

Gnomad4 OTH exome

AF:

0.000910

GnomAD4 genome

AF:

0.000521

AC:

AN:

151746

Hom.:

Cov.:

AF XY:

0.000445

AC XY:

AN XY:

74170

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000958

Gnomad4 OTH

AF:

0.000950

Alfa

AF:

0.000832

Hom.:

Bravo

AF:

0.000446

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

GNPTG-mucolipidosis

Uncertain:2

Apr 24, 2020

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

May 11, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

GNPTG-related disorder

Benign:1

Jun 11, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

7.4

DANN

Benign

0.87

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over