ClinVar Miner

Submissions for variant NM_000531.6(OTC):c.593A>G (p.Asn198Ser)

dbSNP: rs72558403
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000634847 SCV000756196 pathogenic Ornithine carbamoyltransferase deficiency 2023-03-23 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Asn198 amino acid residue in OTC. Other variant(s) that disrupt this residue have been observed in individuals with OTC-related conditions (PMID: 10070627, 16786505), which suggests that this may be a clinically significant amino acid residue. 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 OTC protein function. ClinVar contains an entry for this variant (Variation ID: 529422). This missense change has been observed in individual(s) with clinical features of ornithine transcarbamylase deficiency (Invitae). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 198 of the OTC protein (p.Asn198Ser).

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