NM_005660.3(SLC35A2):c.1097G>A (p.Gly366Glu) AND SLC35A2-congenital disorder of glycosylation

This record was updated by the submitter. Please see the current version.

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Mar 11, 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:: RCV003859483.1

Allele description

NM_005660.3(SLC35A2):c.1097G>A (p.Gly366Glu)

Gene:

SLC35A2:solute carrier family 35 member A2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

Xp11.23

Genomic location:

Preferred name:

NM_005660.3(SLC35A2):c.1097G>A (p.Gly366Glu)

HGVS:

NC_000023.11:g.48904812C>T
NG_015967.1:g.11895C>T
NG_015967.2:g.11884C>T
NG_034300.1:g.12147G>A
NM_001032289.3:c.507G>A
NM_001042498.3:c.1097G>A
NM_001282647.2:c.507G>A
NM_001282648.2:c.435G>A
NM_001282649.2:c.914G>A
NM_001282650.2:c.1136G>A
NM_001282651.2:c.1181G>A
NM_005660.3:c.1097G>AMANE SELECT
NP_001027460.1:p.Arg169=
NP_001035963.1:p.Gly366Glu
NP_001269576.1:p.Arg169=
NP_001269577.1:p.Arg145=
NP_001269578.1:p.Gly305Glu
NP_001269579.1:p.Gly379Glu
NP_001269580.1:p.Gly394Glu
NP_005651.1:p.Gly366Glu
NC_000023.10:g.48762089C>T

Protein change:

G305E

Molecular consequence:

NM_001042498.3:c.1097G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001282649.2:c.914G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001282650.2:c.1136G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001282651.2:c.1181G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_005660.3:c.1097G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001032289.3:c.507G>A - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001282647.2:c.507G>A - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001282648.2:c.435G>A - synonymous variant - [Sequence Ontology: SO:0001819]

Condition(s)

Name:: SLC35A2-congenital disorder of glycosylation
Synonyms:: CONGENITAL DISORDER OF GLYCOSYLATION, TYPE IIm; CDG IIm; CONGENITAL DISORDER OF GLYCOSYLATION, TYPE IIm, SOMATIC MOSAIC; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0010478; MedGen: C3806688; Orphanet: 356961; OMIM: 300896

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004659753	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Mar 11, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004659753

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Mar 11, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

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

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Invitae, SCV004659753.1

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

Description

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 366 of the SLC35A2 protein (p.Gly366Glu). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SLC35A2 protein function. This variant has not been reported in the literature in individuals affected with SLC35A2-related conditions. This variant is not present in population databases (gnomAD no frequency).

#	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: Mar 5, 2024

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