ClinVar Genomic variation as it relates to human health
NM_000152.5(GAA):c.525_526del (p.Asn177fs)
The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.
Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_000152.5(GAA):c.525_526del (p.Asn177fs)
Variation ID: 189057 Accession: VCV000189057.8
- Type and length
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Deletion, 2 bp
- Location
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Cytogenetic: 17q25.3 17: 80105111-80105112 (GRCh38) [ NCBI UCSC ] 17: 78078910-78078911 (GRCh37) [ NCBI UCSC ]
- Timeline in ClinVar
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First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.
Last submission Help The date of the most recent submission for each type of classification for this variant.
Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline Mar 29, 2015 Feb 14, 2024 Nov 2, 2020 - HGVS
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Nucleotide Protein Molecular
consequenceNM_000152.5(GAA):c.525_526del MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.
NM_000152.5:c.525_526del MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.
NP_000143.2:p.Asn177fs frameshift NM_001079803.3:c.525_526del NP_001073271.1:p.Asn177fs frameshift NM_001079804.3:c.525_526del NP_001073272.1:p.Asn177fs frameshift NC_000017.11:g.80105111_80105112del NC_000017.10:g.78078910_78078911del NG_009822.1:g.8556_8557del LRG_673:g.8556_8557del LRG_673t1:c.525_526del - Protein change
- N177fs
- Other names
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- Canonical SPDI
- NC_000017.11:80105110:TG:
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Functional
consequence HelpThe effect of the variant on RNA or protein function, based on experimental evidence from submitters.
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Global minor allele
frequency (GMAF) HelpThe global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.
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Allele frequency
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The frequency of the allele represented by this VCV record.
The Genome Aggregation Database (gnomAD), exomes 0.00000
Exome Aggregation Consortium (ExAC) 0.00001
Genes
Gene | OMIM | ClinGen Gene Dosage Sensitivity Curation |
Variation Viewer
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Links to Variation Viewer, a genome browser to view variation data from NCBI databases. |
Related variants | ||
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HI score
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The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
TS score
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The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
Within gene
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The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants. |
All
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The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene. |
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GAA | - | - |
GRCh38 GRCh38 GRCh37 |
2765 | 2815 |
Conditions - Germline
Condition
Help
The condition for this variant-condition (RCV) record in ClinVar. |
Classification
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The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions) |
Review status
Help
The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. |
Last evaluated
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The most recent date that a submitter evaluated this variant for the condition. |
Variation/condition record
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The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page. |
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Pathogenic (4) |
reviewed by expert panel
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Nov 2, 2020 | RCV000169454.9 |
Submissions - Germline
Classification
Help
The submitted germline classification for each SCV record. (Last evaluated) |
Review status
Help
Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria) |
Condition
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The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant. |
Submitter
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The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar. |
More information
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This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter. |
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Pathogenic
(Nov 02, 2020)
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reviewed by expert panel
Method: curation
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Glycogen storage disease, type II
(Autosomal recessive inheritance)
Affected status: unknown
Allele origin:
germline
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ClinGen Lysosomal Storage Disorder Variant Curation Expert Panel
Accession: SCV001443304.1
First in ClinVar: Nov 21, 2020 Last updated: Nov 21, 2020 |
Comment:
This variant, c.525_526del (p.Asn177ProfsTer11), is a frameshift variant that is predicted to result in a premature termination codon, nonsense mediated decay, and lack of gene … (more)
This variant, c.525_526del (p.Asn177ProfsTer11), is a frameshift variant that is predicted to result in a premature termination codon, nonsense mediated decay, and lack of gene product, meeting PVS1. This is supported by the finding of this variant in an individual with no GAA cross-reactive immunological material in cultured skin fibroblasts (PMID 22252923, 23825616, 31342611). The highest population minor allele frequency in gnomAD v2.1.1 is 0.00003288 in the South Asian population, meeting PM2. One individual with Pompe disease and meeting the ClinGen LSD VCEP's specifications for PP4 has been reported in the literature (PMID 22252923, 23825616). This patient is homozygous for the variant, meeting PM3_Supporting. Two other individuals with the variant have been reported. One is homozygous (PMID 25455803; different than the individual reported in PMID 25455803 based on the age at diagnosis) another individual who is compound heterozygous for the variant and c.-32-13T>G (PMID 31392188). However, these patients were not included because the residual activity was not provided, and therefore PP4 cannot be assessed, and PM3 was not applied. There is a ClinVar entry for this variant (Variation ID: 189057, 1 star review status) with one submitter classifying the variant as likely pathogenic. In summary, this variant meets the criteria to be classified as pathogenic for Pompe disease. GAA-specific ACMG/AMP criteria applied, as specific by the ClinGen LSD VCEP: PVS1, PM2, PM3_Supporting, PP4. (less)
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Likely pathogenic
(Jan 23, 2020)
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criteria provided, single submitter
Method: curation
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Glycogen storage disease, type II
(Autosomal recessive inheritance)
Affected status: unknown
Allele origin:
germline
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Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard
Accession: SCV001422878.2
First in ClinVar: Jul 19, 2020 Last updated: Feb 01, 2022 |
Comment:
The p.Asn177ProfsTer11 variant in GAA has been reported in 6 individuals (including 2 Middle Eastern and 1 Asian individual) with Glycogen Storage Disease II (PMID: … (more)
The p.Asn177ProfsTer11 variant in GAA has been reported in 6 individuals (including 2 Middle Eastern and 1 Asian individual) with Glycogen Storage Disease II (PMID: 22252923, 23825616, 25455803; DOI: 10.1016/j.ymgme.2017.12.198), and has also been reported in ClinVar (Variation ID: 189057). This variant has been identified in 0.0033% (1/30410) of South Asian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs767882689). Although this variant has been seen in the general population, its frequency is low enough to be consistent with a recessive carrier frequency. This variant is predicted to cause a frameshift, which alters the protein's amino acid sequence beginning at position 177 and leads to a premature termination codon 11 amino acids downstream. This alteration is then predicted to lead to a truncated or absent protein. Loss of function of the GAA gene is an established disease mechanism in autosomal recessive Glycogen Storage Disease II. This variant is noted as homozygous in two individuals with Glycogen Storage Disease II (PMID: 23825616, 25455803). In summary, although additional studies are required to fully establish its clinical significance, this variant is likely pathogenic. ACMG/AMP Criteria applied: PVS1, PM2 (Richards 2015). (less)
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Likely pathogenic
(Nov 11, 2014)
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criteria provided, single submitter
Method: literature only
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Glycogen storage disease, type II
(Autosomal recessive inheritance)
Affected status: unknown
Allele origin:
unknown
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Counsyl
Accession: SCV000220875.2
First in ClinVar: Mar 29, 2015 Last updated: Dec 24, 2022 |
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Pathogenic
(Feb 06, 2023)
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criteria provided, single submitter
Method: clinical testing
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Glycogen storage disease, type II
Affected status: unknown
Allele origin:
germline
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Invitae
Accession: SCV004297577.1
First in ClinVar: Feb 14, 2024 Last updated: Feb 14, 2024 |
Comment:
ClinVar contains an entry for this variant (Variation ID: 189057). This sequence change creates a premature translational stop signal (p.Asn177Profs*11) in the GAA gene. It … (more)
ClinVar contains an entry for this variant (Variation ID: 189057). This sequence change creates a premature translational stop signal (p.Asn177Profs*11) in the GAA gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GAA are known to be pathogenic (PMID: 18425781, 22252923). This variant is present in population databases (rs767882689, gnomAD 0.003%). This premature translational stop signal has been observed in individual(s) with Pompe disease (PMID: 22252923). For these reasons, this variant has been classified as Pathogenic. (less)
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Germline Functional Evidence
There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar. |
Citations for germline classification of this variant
HelpTitle | Author | Journal | Year | Link |
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Algorithm for the early diagnosis and treatment of patients with cross reactive immunologic material-negative classic infantile pompe disease: a step towards improving the efficacy of ERT. | Banugaria SG | PloS one | 2013 | PMID: 23825616 |
Predicting cross-reactive immunological material (CRIM) status in Pompe disease using GAA mutations: lessons learned from 10 years of clinical laboratory testing experience. | Bali DS | American journal of medical genetics. Part C, Seminars in medical genetics | 2012 | PMID: 22252923 |
Update of the Pompe disease mutation database with 107 sequence variants and a format for severity rating. | Kroos M | Human mutation | 2008 | PMID: 18425781 |
https://erepo.clinicalgenome.org/evrepo/ui/interpretation/2a9120c5-f281-4d43-8b18-edc528f11221 | - | - | - | - |
https://erepo.clinicalgenome.org/evrepo/ui/interpretation/abc2a8a5-c942-42ac-9a92-4a7b9cede5c9 | - | - | - | - |
Text-mined citations for rs767882689 ...
HelpRecord last updated Mar 30, 2024
This date represents the last time this VCV record was updated. The update may be due to an update to one of the included submitted records (SCVs), or due to an update that ClinVar made to the variant such as adding HGVS expressions or a rs number. So this date may be different from the date of the “most recent submission” reported at the top of this page.