ClinVar Miner

Submissions for variant NM_000203.5(IDUA):c.1802C>T (p.Thr601Ile)

gnomAD frequency: 0.00001  dbSNP: rs200089576
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001043254 SCV001206979 uncertain significance Mucopolysaccharidosis type 1 2023-12-19 criteria provided, single submitter clinical testing This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 601 of the IDUA protein (p.Thr601Ile). This variant is present in population databases (rs200089576, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with IDUA-related conditions. ClinVar contains an entry for this variant (Variation ID: 841104). 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 not expected to disrupt IDUA protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Ambry Genetics RCV002409401 SCV002717325 uncertain significance Inborn genetic diseases 2022-07-10 criteria provided, single submitter clinical testing The p.T601I variant (also known as c.1802C>T), located in coding exon 13 of the IDUA gene, results from a C to T substitution at nucleotide position 1802. The threonine at codon 601 is replaced by isoleucine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Natera, Inc. RCV001043254 SCV001454782 uncertain significance Mucopolysaccharidosis type 1 2020-09-16 no assertion criteria provided clinical testing

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