Submissions for variant NM_003977.4(AIP):c.944A>C (p.Gln315Pro)

gnomAD frequency: 0.00001  dbSNP: rs886048585

Total submissions: 4

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Illumina Laboratory Services, Illumina	RCV000359339	SCV000373589	uncertain significance	Somatotroph adenoma	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.
Ambry Genetics	RCV001019362	SCV001180710	uncertain significance	Hereditary cancer-predisposing syndrome	2022-08-30	criteria provided, single submitter	clinical testing	The p.Q315P variant (also known as c.944A>C), located in coding exon 6 of the AIP gene, results from an A to C substitution at nucleotide position 944. The glutamine at codon 315 is replaced by proline, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Invitae	RCV001229408	SCV001401853	uncertain significance	not provided	2024-01-19	criteria provided, single submitter	clinical testing	This sequence change replaces glutamine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 315 of the AIP protein (p.Gln315Pro). This variant is present in population databases (no rsID available, gnomAD no frequency). This variant has not been reported in the literature in individuals affected with AIP-related conditions. ClinVar contains an entry for this variant (Variation ID: 305734). 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 AIP protein function with a negative predictive value of 80%. 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.
GeneDx	RCV001229408	SCV003933528	uncertain significance	not provided	2022-12-13	criteria provided, single submitter	clinical testing	Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge