The ClinGen Evidence Repository is an FDA-recognized human genetic variant database containing expert-curated assertions regarding variants' pathogenicity and supporting evidence summaries. [Disclaimer]
  • Gene obtained from curated document aligns with the Allele Registry but not with ClinVar data
  • No CSPEC computed assertion could be determined for this classification!


Variant: NM_000231.3(SGCG):c.525del (p.Phe175fs)

CA346837

189243 (ClinVar)

Gene: SGCG
Condition: autosomal recessive limb-girdle muscular dystrophy
Inheritance Mode: Autosomal recessive inheritance
UUID: 4503b450-84a7-485a-b082-22222ddf43a9
Approved on: 2025-12-23
Published on: 2026-01-12

HGVS expressions

NM_000231.3:c.525del
NM_000231.3(SGCG):c.525del (p.Phe175fs)
NC_000013.11:g.23295434del
CM000675.2:g.23295434del
NC_000013.10:g.23869573del
CM000675.1:g.23869573del
NC_000013.9:g.22767573del
NG_008759.1:g.119514del
ENST00000683210.1:c.2186-6187del
ENST00000218867.4:c.525del
ENST00000218867.3:c.525del
NM_000231.2:c.525del
NM_001378244.1:c.579del
NM_001378245.1:c.525del
NM_001378246.1:c.525del
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Pathogenic

Met criteria codes 4
PP1_Strong PP4 PM3 PVS1_Strong
Not Met criteria codes 22
BS2 BS3 BS1 BS4 BP7 BP5 BP4 BP1 BP3 BP2 PS4 PS2 PS1 PS3 PP3 PP2 BA1 PM1 PM5 PM4 PM6 PM2

Evidence Links 0

Expert Panel

Criteria Specification Information

Criteria Specification: ClinGen Limb Girdle Muscular Dystrophy Expert Panel Specifications to the ACMG/AMP Variant Interpretation Guidelines for SGCG Version 2.0.0

Criteria Specification Approval History
Criteria Specifications for this VCEP
Evidence submitted by expert panel
Limb Girdle Muscular Dystrophy VCEP
The NM_000231.3: c.525del p.(Phe175LeufsTer20) variant in SGCG is a frameshift variant that is predicted to introduce a premature stop codon and nonsense mediated decay in a gene for which loss of function is a known mechanism of disease. However, use of an N-terminal antibody in patient muscle tissue suggested that a truncated protein may be produced (PMID: 10942431) (PVS1_Strong). This variant has been detected in at least five apparently unrelated patients with autosomal recessive limb girdle muscular dystrophy, including in a homozygous state in at least four individuals (1.0 pt, PMID: 16616845, 10993494, 18285821, 10942431; ClinVar SCV001164546.1) (PM3). At least one patient with this variant displayed progressive limb girdle muscle weakness (PP4). While absent gamma-sarcoglycan protein expression has been reported in the skeletal muscle of patients with this variant, detection may be dependent on the antibody used (PMID: 10993494, 16616845, 10942431). The variant has been reported to segregate with autosomal recessive LGMD in four affected family members from two families (PP1_Strong; PMID: 10942431, ClinVar SCV001164546.1). The highest population allele frequency of this variant is 0.0001166 in gnomAD v4.1.10 (7/60018 Admixed American chromosomes), which is greater than the ClinGen LGMD threshold (0.00009) for PM2_Supporting (criterion not met). In summary, this variant meets the criteria to be classified as Pathogenic for autosomal recessive limb girdle muscular dystrophy based on the ACMG/AMP criteria applied, as specified by the ClinGen LGMD VCEP (LGMD VCEP specifications version 2.0.0; 12/23/2025): PVS1_Strong, PM3, PP4, PP1_Strong.
Met criteria codes
PP1_Strong
The variant has been reported to segregate with autosomal recessive LGMD in four affected family members from two families (PP1_Strong; PMID: 10942431, SCV001164546.1).
PP4
At least one patient with this variant displayed progressive muscle weakness. While absent gamma-sarcoglycan protein expression has been reported in the skeletal muscle of patients with this variant, detection may be dependent on the antibody used (PP4; PMID: 10993494, 16616845, 10942431).
PM3
This variant has been detected in at least five patients with autosomal recessive limb girdle muscular dystrophy, including in a homozygous state in at least four individuals (1.0 pt, PMID: 16616845, 10993494, 18285821, 10942431; SCV001164546.1) (PM3).
PVS1_Strong
The NM_000231.3: c.525del p.(Phe175LeufsTer20) variant in SGCG is a frameshift variant that is predicted to introduce a premature stop codon and nonsense mediated decay in a gene for which loss of function is a known mechanism of disease. However, use of an N-terminal antibody in patient muscle tissue suggested that a truncated protein may be produced (PMID: 10942431).(PVS1_Strong).
Not Met criteria codes
BS2
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BS3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BS1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BS4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP7
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP5
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BP2
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS2
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PP3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PP2
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BA1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM5
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM6
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM2
The highest population allele frequency of this variant is 0.0001166 in gnomAD v4.1.10 (7/60018 Admixed American chromosomes), which is greater than the ClinGen LGMD threshold (0.00009) for PM2_Supporting (criterion not met).
Curation History
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