NM_000152.5(GAA):c.359C>G (p.Ala120Gly) AND Glycogen storage disease, type II

Germline classification:: Uncertain significance (3 submissions)
Last evaluated:: Aug 4, 2022
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV000525570.9

Allele description [Variation Report for NM_000152.5(GAA):c.359C>G (p.Ala120Gly)]

NM_000152.5(GAA):c.359C>G (p.Ala120Gly)

Gene:

GAA:alpha glucosidase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17q25.3

Genomic location:

Preferred name:

NM_000152.5(GAA):c.359C>G (p.Ala120Gly)

HGVS:

NC_000017.11:g.80104945C>G
NG_009822.1:g.8390C>G
NM_000152.5:c.359C>GMANE SELECT
NM_001079803.3:c.359C>G
NM_001079804.3:c.359C>G
NP_000143.2:p.Ala120Gly
NP_001073271.1:p.Ala120Gly
NP_001073272.1:p.Ala120Gly
LRG_673t1:c.359C>G
LRG_673:g.8390C>G
NC_000017.10:g.78078744C>G
NM_000152.3:c.359C>G

Protein change:

A120G

Links:

dbSNP: rs779208773

NCBI 1000 Genomes Browser:

rs779208773

Molecular consequence:

NM_000152.5:c.359C>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001079803.3:c.359C>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001079804.3:c.359C>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Glycogen storage disease, type II (GSD2)
Synonyms:: ACID ALPHA-GLUCOSIDASE DEFICIENCY; GLYCOGENOSIS, GENERALIZED, CARDIAC FORM; GSD II; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0009290; MedGen: C0017921; Orphanet: 365; OMIM: 232300

Recent activity

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Taxonomy Links for GEO Profiles (Select 128624742) (1)
Taxonomy
Saccharomyces cerevisiae S288C chromosome XIV, complete sequence
Saccharomyces cerevisiae S288C chromosome XIV, complete sequence
gi|330443715|ref|NC_001146.8||gnl|A F_000146045.2|XIV

Nucleotide
txid1889775[Organism:noexp] (17)
BioProject
OMIM Links for GEO Profiles (Select 106474540) (2)
OMIM
Gene neighbors for Gene (Select 855384) (5)
Gene

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000626608	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Aug 4, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV002091913	Natera, Inc.	no assertion criteria provided	Uncertain significance (Oct 28, 2019)	germline	clinical testing
SCV002803972	Fulgent Genetics, Fulgent Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Nov 23, 2021)	unknown	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

SCV000626608

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Aug 4, 2022)

germline

clinical testing

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

SCV002091913

Natera, Inc.

no assertion criteria provided

Uncertain significance
(Oct 28, 2019)

germline

clinical testing

SCV002803972

Fulgent Genetics, Fulgent Genetics

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Nov 23, 2021)

unknown

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
not provided	unknown	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

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000626608.5

#	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 alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 120 of the GAA protein (p.Ala120Gly). This variant is present in population databases (rs779208773, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with GAA-related conditions. ClinVar contains an entry for this variant (Variation ID: 456421). 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) performed at Invitae indicates that this missense variant is not expected to disrupt GAA protein function. 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.

#	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

From Natera, Inc., SCV002091913.1

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

#	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

From Fulgent Genetics, Fulgent Genetics, SCV002803972.1

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

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

Last Updated: Sep 29, 2024

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