ClinVar Miner

Submissions for variant NM_033629.6(TREX1):c.346C>G (p.Pro116Ala)

gnomAD frequency: 0.00006  dbSNP: rs761651331
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
CeGaT Center for Human Genetics Tuebingen RCV000998068 SCV001153942 uncertain significance not provided 2024-01-01 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001145696 SCV001306389 likely benign Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease.
Illumina Laboratory Services, Illumina RCV001145697 SCV001306390 uncertain significance Aicardi-Goutieres syndrome 1 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Labcorp Genetics (formerly Invitae), Labcorp RCV001222016 SCV001394095 uncertain significance Aicardi-Goutieres syndrome 1; Chilblain lupus 1; Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations 2024-01-10 criteria provided, single submitter clinical testing This sequence change replaces proline, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 116 of the TREX1 protein (p.Pro116Ala). This variant is present in population databases (rs761651331, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with TREX1-related conditions. ClinVar contains an entry for this variant (Variation ID: 809480). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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.

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