ClinVar Miner

Submissions for variant NM_000271.5(NPC1):c.2660C>T (p.Pro887Leu)

dbSNP: rs1169032037
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Mendelics RCV000990076 SCV001140859 pathogenic Niemann-Pick disease, type C1 2019-05-28 criteria provided, single submitter clinical testing
Invitae RCV000990076 SCV003279157 pathogenic Niemann-Pick disease, type C1 2023-11-15 criteria provided, single submitter clinical testing This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 887 of the NPC1 protein (p.Pro887Leu). 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: 19744920, 24676439, 28776642, 32222928). ClinVar contains an entry for this variant (Variation ID: 803477). 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 with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic.

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