rs761607612
Variant summary
Our verdict is Pathogenic. Variant got 22 ACMG points: 22P and 0B. PS1PM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000199.5(SGSH):c.364G>A(p.Gly122Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,459,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Pathogenicin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G122W) has been classified as Pathogenic.
Frequency
Consequence
NM_000199.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 22 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SGSH | NM_000199.5 | c.364G>A | p.Gly122Arg | missense_variant | 4/8 | ENST00000326317.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SGSH | ENST00000326317.11 | c.364G>A | p.Gly122Arg | missense_variant | 4/8 | 1 | NM_000199.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 exomes AF: 0.0000161 AC: 4AN: 249012Hom.: 0 AF XY: 0.0000222 AC XY: 3AN XY: 135064
GnomAD4 exome AF: 0.0000164 AC: 24AN: 1459646Hom.: 0 Cov.: 33 AF XY: 0.0000275 AC XY: 20AN XY: 726192
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Mucopolysaccharidosis, MPS-III-A Pathogenic:9
Pathogenic, criteria provided, single submitter | clinical testing | Centre for Inherited Metabolic Diseases, Karolinska University Hospital | Mar 25, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | Sep 21, 2015 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jan 12, 2024 | This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 122 of the SGSH protein (p.Gly122Arg). This variant is present in population databases (rs761607612, gnomAD 0.01%). This missense change has been observed in individuals with mucopolysaccharidosis (PMID: 9401012, 9554748, 11182930, 21061399, 22976768, 27590925; Invitae). ClinVar contains an entry for this variant (Variation ID: 518269). 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 expected to disrupt SGSH protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects SGSH function (PMID: 10727844). This variant disrupts the p.Arg122 amino acid residue in SGSH. Other variant(s) that disrupt this residue have been observed in individuals with SGSH-related conditions (PMID: 24875751), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Nov 07, 2021 | - - |
Pathogenic, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Likely pathogenic, criteria provided, single submitter | literature only | Laboratory of Diagnosis and Therapy of Lysosomal Disorders, University of Padova | Jan 01, 2019 | PS3: Low in vitro enzymatic activity. PM2: Very low frequency in ExAc - |
Pathogenic, no assertion criteria provided | clinical testing | Natera, Inc. | Feb 22, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Jun 15, 2023 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Counsyl | Jan 24, 2018 | - - |
not provided Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Aug 05, 2021 | Published functional studies demonstrate a damaging effect on enzyme activity (Esposito et al., 2000); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Not observed at significant frequency in large population cohorts (Lek et al., 2016); This variant is associated with the following publications: (PMID: 9401012, 9554748, 11182930, 11668611, 21204211, 22002444, 24875751, 30809705, 10727844, 22976768, 27590925, 21061399, 25557439, 25807448, 24816101) - |
Abnormality of metabolism/homeostasis Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Kariminejad - Najmabadi Pathology & Genetics Center | Jul 10, 2021 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at