ClinVar Miner

Submissions for variant NM_138694.4(PKHD1):c.5075G>A (p.Cys1692Tyr)

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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 RCV003060049 SCV003439462 pathogenic Autosomal recessive polycystic kidney disease 2022-01-18 criteria provided, single submitter clinical testing This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 1692 of the PKHD1 protein (p.Cys1692Tyr). This variant is not present in population databases (gnomAD no frequency). For these reasons, this variant has been classified as Pathogenic. 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 PKHD1 protein function. This missense change has been observed in individual(s) with polycystic kidney disease (PMID: 19021639, 19940839). 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.

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