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NM_018297.4(NGLY1):c.1764_1785del (p.Asp588fs) AND Congenital disorder of deglycosylation

Germline classification:
Pathogenic (1 submission)
Last evaluated:
Oct 29, 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:
RCV003741278.2

Allele description [Variation Report for NM_018297.4(NGLY1):c.1764_1785del (p.Asp588fs)]

NM_018297.4(NGLY1):c.1764_1785del (p.Asp588fs)

Gene:
NGLY1:N-glycanase 1 [Gene - OMIM - HGNC]
Variant type:
Deletion
Cytogenetic location:
3p24.2
Genomic location:
Preferred name:
NM_018297.4(NGLY1):c.1764_1785del (p.Asp588fs)
HGVS:
  • NC_000003.12:g.25720019_25720040del
  • NG_034108.1:g.75001_75022del
  • NM_001145293.2:c.1710_1731del
  • NM_001145294.2:c.1638_1659del
  • NM_001145295.2:c.1612-404_1612-383del
  • NM_018297.4:c.1764_1785delMANE SELECT
  • NP_001138765.1:p.Asp570fs
  • NP_001138766.1:p.Asp546fs
  • NP_060767.2:p.Asp588fs
  • NC_000003.11:g.25761509_25761530del
  • NC_000003.11:g.25761510_25761531del
Protein change:
D546fs
Links:
dbSNP: rs2125442722
NCBI 1000 Genomes Browser:
rs2125442722
Molecular consequence:
  • NM_001145293.2:c.1710_1731del - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_001145294.2:c.1638_1659del - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_018297.4:c.1764_1785del - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_001145295.2:c.1612-404_1612-383del - intron variant - [Sequence Ontology: SO:0001627]

Condition(s)

Name:
Congenital disorder of deglycosylation (CDDG)
Identifiers:
MONDO: MONDO:0031376; MedGen: C3808991; OMIM: PS615273

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV004552845Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))
Pathogenic
(Oct 29, 2023)
germlineclinical testing

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

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Mutations in NGLY1 cause an inherited disorder of the endoplasmic reticulum-associated degradation pathway.

Enns GM, Shashi V, Bainbridge M, Gambello MJ, Zahir FR, Bast T, Crimian R, Schoch K, Platt J, Cox R, Bernstein JA, Scavina M, Walter RS, Bibb A, Jones M, Hegde M, Graham BH, Need AC, Oviedo A, Schaaf CP, Boyle S, Butte AJ, et al.

Genet Med. 2014 Oct;16(10):751-8. doi: 10.1038/gim.2014.22. Epub 2014 Mar 20. Erratum in: Genet Med. 2014 Jul;16(7):568. Chen, Rui [added].

PubMed [citation]
PMID:
24651605
PMCID:
PMC4243708

A congenital disorder of deglycosylation: Biochemical characterization of N-glycanase 1 deficiency in patient fibroblasts.

He P, Grotzke JE, Ng BG, Gunel M, Jafar-Nejad H, Cresswell P, Enns GM, Freeze HH.

Glycobiology. 2015 Aug;25(8):836-44. doi: 10.1093/glycob/cwv024. Epub 2015 Apr 21.

PubMed [citation]
PMID:
25900930
PMCID:
PMC4487302
See all PubMed Citations (4)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV004552845.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (4)

Description

This sequence change creates a premature translational stop signal (p.Asp588Glufs*24) in the NGLY1 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 67 amino acid(s) of the NGLY1 protein. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NGLY1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1324809). This variant disrupts a region of the NGLY1 protein in which other variant(s) (p.Gln631Serfs*7) have been determined to be pathogenic (PMID: 24651605, 25900930, 30740912). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Nov 10, 2024