ClinVar Miner

Submissions for variant NM_022166.4(XYLT1):c.1793G>A (p.Arg598His)

gnomAD frequency: 0.00001  dbSNP: rs1567288581
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV002766207 SCV003027360 uncertain significance Desbuquois dysplasia 1 2025-01-27 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 598 of the XYLT1 protein (p.Arg598His). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with XYLT1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1979309). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt XYLT1 protein function with a positive predictive value of 80%. 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.

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