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NM_005609.4(PYGM):c.1A>C (p.Met1Leu) AND Glycogen storage disease, type V

Germline classification:
Pathogenic (4 submissions)
Last evaluated:
Aug 2, 2023
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:
RCV000144425.13

Allele description [Variation Report for NM_005609.4(PYGM):c.1A>C (p.Met1Leu)]

NM_005609.4(PYGM):c.1A>C (p.Met1Leu)

Gene:
PYGM:glycogen phosphorylase, muscle associated [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
11q13.1
Genomic location:
Preferred name:
NM_005609.4(PYGM):c.1A>C (p.Met1Leu)
HGVS:
  • NC_000011.10:g.64759898T>G
  • NG_013018.1:g.5818A>C
  • NM_001164716.1:c.1A>C
  • NM_005609.4:c.1A>CMANE SELECT
  • NP_001158188.1:p.Met1Leu
  • NP_005600.1:p.Met1Leu
  • NC_000011.9:g.64527370T>G
  • NM_005609.2:c.1A>C
Protein change:
M1L; MET1GLY
Links:
OMIM: 608455.0004; dbSNP: rs267606993
NCBI 1000 Genomes Browser:
rs267606993
Molecular consequence:
  • NM_001164716.1:c.1A>C - initiator_codon_variant - [Sequence Ontology: SO:0001582]
  • NM_005609.4:c.1A>C - initiator_codon_variant - [Sequence Ontology: SO:0001582]
  • NM_001164716.1:c.1A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_005609.4:c.1A>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Glycogen storage disease, type V (GSD5)
Synonyms:
Glycogen storage disease type 5; GSD 5; McArdle disease; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0009293; MedGen: C0017924; Orphanet: 368; OMIM: 232600

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000022549OMIM
no assertion criteria provided
Pathogenic
(Jan 1, 1994)
germlineliterature only

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

SCV000189480ClinVar Staff, National Center for Biotechnology Information (NCBI)
no classification provided
not providedunknownnot provided

SCV002019578Revvity Omics, Revvity
criteria provided, single submitter

(ACMG Guidelines, 2015)
Pathogenic
(Sep 26, 2019)
germlineclinical testing

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

SCV003440488Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))
Pathogenic
(Aug 2, 2023)
germlineclinical testing

PubMed (5)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlinenot providednot providednot providednot providednot providednot providedliterature only
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing
not providednot providednot providednot providednot providednot provided1not providedliterature only

Citations

PubMed

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

An A-to-C substitution involving the translation initiation codon in a patient with myophosphorylase deficiency (McArdle's disease).

Tsujino S, Rubin LA, Shanske S, DiMauro S.

Hum Mutat. 1994;4(1):73-5. No abstract available.

PubMed [citation]
PMID:
7951262
See all PubMed Citations (6)

Details of each submission

From OMIM, SCV000022549.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedliterature only PubMed (1)

Description

In a 36-year-old woman who had been diagnosed with scleroderma at age 33 but who was also found to have myophosphorylase deficiency (GSD5; 232600), Tsujino et al. (1994) identified an A-to-C transversion (ATG to CTG), which abolished the translation initiation codon of the PYGM gene. The patient was a compound heterozygote with a common nonsense mutation, R50X (608455.0001).

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

From ClinVar Staff, National Center for Biotechnology Information (NCBI), SCV000189480.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providednot providednot provided
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1unknownnot provided1not providednot providednot providednot providednot providednot provided

From Revvity Omics, Revvity, SCV002019578.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

From Labcorp Genetics (formerly Invitae), Labcorp, SCV003440488.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (5)

Description

This variant is not present in population databases (gnomAD no frequency). This sequence change affects the initiator methionine of the PYGM mRNA. The next in-frame methionine is located at codon 92. Disruption of the initiator codon has been observed in individual(s) with McArdle’s disease (PMID: 7951262, 9506549, 25740218, 28967462). For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 156341).

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

Last Updated: Sep 29, 2024