ClinVar Miner

Submissions for variant NM_000271.5(NPC1):c.3503G>A (p.Cys1168Tyr)

dbSNP: rs1555631998
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000727481 SCV000708945 likely pathogenic not provided 2017-06-01 criteria provided, single submitter clinical testing
Centogene AG - the Rare Disease Company RCV000597778 SCV001424466 pathogenic Niemann-Pick disease, type C1 criteria provided, single submitter clinical testing
Invitae RCV000597778 SCV001492305 likely pathogenic Niemann-Pick disease, type C1 2023-02-24 criteria provided, single submitter clinical testing Experimental studies have shown that this missense change affects NPC1 function (PMID: 30923329). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely 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 NPC1 protein function. This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 1168 of the NPC1 protein (p.Cys1168Tyr). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with Niemann-Pick disease type C (PMID: 11333381, 26666848). ClinVar contains an entry for this variant (Variation ID: 502274).
Counsyl RCV000597778 SCV000796541 likely pathogenic Niemann-Pick disease, type C1 2017-12-27 no assertion criteria provided clinical testing

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