Total submissions: 8
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV001246288 | SCV001419631 | pathogenic | Mucopolysaccharidosis, MPS-III-A | 2023-06-14 | criteria provided, single submitter | clinical testing | This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 377 of the SGSH protein (p.Arg377Cys). For these reasons, this variant has been classified as Pathogenic. Experimental studies have shown that this missense change affects SGSH function (PMID: 10727844, 12000360). 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. ClinVar contains an entry for this variant (Variation ID: 559103). This missense change has been observed in individual(s) with mucopolysaccharidosis type III (PMID: 9554748, 12000360, 19099774, 21910976). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. This variant is present in population databases (rs772311757, gnomAD 0.02%). |
Ambry Genetics | RCV001266348 | SCV001444522 | pathogenic | Inborn genetic diseases | 2018-09-24 | criteria provided, single submitter | clinical testing | |
Genome- |
RCV001246288 | SCV002045488 | pathogenic | Mucopolysaccharidosis, MPS-III-A | 2021-11-07 | criteria provided, single submitter | clinical testing | |
Women's Health and Genetics/Laboratory Corporation of America, |
RCV001246288 | SCV002500296 | pathogenic | Mucopolysaccharidosis, MPS-III-A | 2022-03-10 | criteria provided, single submitter | clinical testing | Variant summary: SGSH c.1129C>T (p.Arg377Cys) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 3.6e-05 in 250934 control chromosomes. c.1129C>T has been reported in the literature as homozygous and compound heterozygous genotypes in individuals affected with Mucopolysaccharidosis Type IIIA (Sanfilippo Syndrome A) (example, Di Natale_1998, Espositio_2000, Heron_2011, Quesleti_2011, Lee-Chen_2002). These data indicate that the variant is likely to be associated with disease. At least one publication reports experimental evidence evaluating an impact on protein function (example, Esposito_2000). The most pronounced variant effect results in <10% of Heparan N-sulfatase activity of this mutant transiently transfected in COS cells. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. |
Foundation for Research in Genetics and Endocrinology, |
RCV001246288 | SCV002822860 | likely pathogenic | Mucopolysaccharidosis, MPS-III-A | criteria provided, single submitter | clinical testing | The homozygous missense variation in exon 8 of SGSH gene that results in the amino acid substitution to cysteine for arginine at codon of 377 was detected. The variant c.1129C>T (p.Arg377Cys) has not been reported in 1000 genome and has a MAF of 0.004% in the gnomAD database. The insilico prediction of the variant is dIsease causing by DANN, FATHMM, SIFT, PROVEAN and MutationTaster. | |
Baylor Genetics | RCV001246288 | SCV004201105 | pathogenic | Mucopolysaccharidosis, MPS-III-A | 2023-08-14 | criteria provided, single submitter | clinical testing | |
Mayo Clinic Laboratories, |
RCV000676150 | SCV000801898 | pathogenic | not provided | 2017-05-15 | no assertion criteria provided | clinical testing | |
Natera, |
RCV001246288 | SCV002095121 | pathogenic | Mucopolysaccharidosis, MPS-III-A | 2020-09-16 | no assertion criteria provided | clinical testing |