ClinVar Miner

Submissions for variant NM_000264.5(PTCH1):c.4138G>A (p.Ala1380Thr)

gnomAD frequency: 0.00001  dbSNP: rs111481152
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000699784 SCV000828510 uncertain significance Gorlin syndrome 2024-01-05 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1380 of the PTCH1 protein (p.Ala1380Thr). This variant is present in population databases (rs111481152, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with PTCH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 577111). 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 not expected to disrupt PTCH1 protein function with a negative predictive value of 95%. 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.
Fulgent Genetics, Fulgent Genetics RCV000766069 SCV000897540 uncertain significance Basal cell carcinoma, susceptibility to, 1; Gorlin syndrome; Holoprosencephaly 7 2018-10-31 criteria provided, single submitter clinical testing
Ambry Genetics RCV001021931 SCV001183609 likely benign Hereditary cancer-predisposing syndrome 2022-09-27 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Quest Diagnostics Nichols Institute San Juan Capistrano RCV003478431 SCV004219248 uncertain significance not provided 2022-09-21 criteria provided, single submitter clinical testing The variant has not been reported in the published literature. The frequency of this variant in the general population, 0.000016 (4/247464 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant.

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