NM_032520.4(GNPTG):c.499dup (p.Leu167Profs) AND not provided

Germline classification:: Pathogenic (1 submission)
Last evaluated:: Sep 8, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001070439.6

Allele description [Variation Report for NM_032520.4(GNPTG):c.499dup (p.Leu167Profs)]

NM_032520.4(GNPTG):c.499dup (p.Leu167Profs)

Gene:

GNPTG:N-acetylglucosamine-1-phosphate transferase subunit gamma [Gene - OMIM - HGNC]

Variant type:

Duplication

Cytogenetic location:

16p13.3

Genomic location:

Preferred name:

NM_032520.4(GNPTG):c.499dup (p.Leu167Profs)

HGVS:

NC_000016.10:g.1362293dup
NG_016985.1:g.15395dup
NG_033129.1:g.57417dup
NM_032520.5:c.499dupMANE SELECT
NP_115909.1:p.Leu167fs
NC_000016.9:g.1412288_1412289insC
NC_000016.9:g.1412294dup
NM_032520.4:c.494dupC
NM_032520.4:c.499dup
NM_032520.4:c.499dupC
NM_032520.5:c.499dupCMANE SELECT

Protein change:

L167fs

Links:

OMIM: 607838.0001; dbSNP: rs756959430

NCBI 1000 Genomes Browser:

rs756959430

Molecular consequence:

NM_032520.5:c.499dup - frameshift variant - [Sequence Ontology: SO:0001589]

Condition(s)

Synonyms:: none provided
Identifiers:: MedGen: C3661900

Recent activity

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Saccharomyces cerevisiae S288C uncharacterized protein (YLR152C), partial mRNA
Saccharomyces cerevisiae S288C uncharacterized protein (YLR152C), partial mRNA
gi|296146683|ref|NM_001182039.1|

Nucleotide
Mus musculus expressed sequence C79127, mRNA (cDNA clone MGC:106176 IMAGE:450782...
Mus musculus expressed sequence C79127, mRNA (cDNA clone MGC:106176 IMAGE:4507828), complete cds
gi|66570858|gb|BC096372.1|

Nucleotide

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001235669	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Pathogenic (Sep 8, 2023)	germline	clinical testing	PubMed (4) [See all records that cite these PMIDs] 19370764, 20301784, 29170090, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001235669

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Pathogenic
(Sep 8, 2023)

germline

clinical testing

PubMed (4)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Identification and molecular characterization of six novel mutations in the UDP-N-acetylglucosamine-1-phosphotransferase gamma subunit (GNPTG) gene in patients with mucolipidosis III gamma.

Persichetti E, Chuzhanova NA, Dardis A, Tappino B, Pohl S, Thomas NS, Rosano C, Balducci C, Paciotti S, Dominissini S, Montalvo AL, Sibilio M, Parini R, Rigoldi M, Di Rocco M, Parenti G, Orlacchio A, Bembi B, Cooper DN, Filocamo M, Beccari T.

Hum Mutat. 2009 Jun;30(6):978-84. doi: 10.1002/humu.20959.

PubMed [citation]

PMID:: 19370764

Mucolipidosis III Gamma.

Raas-Rothschild A, Spiegel R.

2010 Jan 28 [updated 2019 Nov 21]. In: Adam MP, Feldman J, Mirzaa GM, Pagon RA, Wallace SE, Bean LJH, Gripp KW, Amemiya A, editors. GeneReviews(®) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2024.

PubMed [citation]

PMID:: 20301784

See all PubMed Citations (4)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001235669.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (4)

Description

This sequence change creates a premature translational stop signal (p.Leu167Profs*32) in the GNPTG gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GNPTG are known to be pathogenic (PMID: 19370764, 20301784). This variant is present in population databases (rs756959430, gnomAD 0.008%). This premature translational stop signal has been observed in individuals with mucolipidosis III (PMID: 29170090). ClinVar contains an entry for this variant (Variation ID: 437454). For these reasons, this variant has been classified as Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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