ClinVar Miner

Submissions for variant NM_000038.6(APC):c.1176C>G (p.His392Gln)

dbSNP: rs1580530148
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Mendelics RCV000987556 SCV001136881 uncertain significance Familial adenomatous polyposis 1 2019-05-28 criteria provided, single submitter clinical testing
Color Diagnostics, LLC DBA Color Health RCV001176396 SCV001340371 uncertain significance Hereditary cancer-predisposing syndrome 2023-12-04 criteria provided, single submitter clinical testing This missense variant replaces histidine with glutamine at codon 392 of the APC protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with APC-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Invitae RCV000987556 SCV002218710 uncertain significance Familial adenomatous polyposis 1 2022-11-15 criteria provided, single submitter clinical testing 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. 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 APC protein function. ClinVar contains an entry for this variant (Variation ID: 802134). This variant has not been reported in the literature in individuals affected with APC-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 392 of the APC protein (p.His392Gln).
Ambry Genetics RCV001176396 SCV002637144 uncertain significance Hereditary cancer-predisposing syndrome 2022-09-24 criteria provided, single submitter clinical testing The p.H392Q variant (also known as c.1176C>G), located in coding exon 9 of the APC gene, results from a C to G substitution at nucleotide position 1176. The histidine at codon 392 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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