Submissions for variant NM_020366.4(RPGRIP1):c.3814G>A (p.Val1272Ile)

gnomAD frequency: 0.00001  dbSNP: rs778860397

Total submissions: 6

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Illumina Laboratory Services, Illumina	RCV000357409	SCV000385454	uncertain significance	Cone-rod dystrophy 13	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.
Illumina Laboratory Services, Illumina	RCV000265246	SCV000385455	uncertain significance	Leber congenital amaurosis 6	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	RCV001211874	SCV001383436	uncertain significance	Cone-rod dystrophy 13; Leber congenital amaurosis 6	2023-10-03	criteria provided, single submitter	clinical testing	This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1272 of the RPGRIP1 protein (p.Val1272Ile). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with RPGRIP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 312802). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on RPGRIP1 protein function. 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.
Genome-Nilou Lab	RCV000265246	SCV002045592	uncertain significance	Leber congenital amaurosis 6	2021-11-07	criteria provided, single submitter	clinical testing
Genome-Nilou Lab	RCV000357409	SCV002045603	uncertain significance	Cone-rod dystrophy 13	2021-11-07	criteria provided, single submitter	clinical testing
Ambry Genetics	RCV002520893	SCV003689149	uncertain significance	Inborn genetic diseases	2022-06-06	criteria provided, single submitter	clinical testing	The c.3814G>A (p.V1272I) alteration is located in exon 24 (coding exon 24) of the RPGRIP1 gene. This alteration results from a G to A substitution at nucleotide position 3814, causing the valine (V) at amino acid position 1272 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.