Submissions for variant NM_002693.3(POLG):c.2601T>C (p.Pro867=)

gnomAD frequency: 0.00006  dbSNP: rs201749977

Total submissions: 6

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
GeneDx	RCV000127526	SCV000171103	benign	not specified	2014-04-09	criteria provided, single submitter	clinical testing	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Illumina Laboratory Services, Illumina	RCV000403402	SCV000394272	uncertain significance	POLG-Related Spectrum Disorders	2018-01-12	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.
Eurofins Ntd Llc (ga)	RCV000734626	SCV000862782	uncertain significance	not provided	2018-08-07	criteria provided, single submitter	clinical testing
Labcorp Genetics (formerly Invitae), Labcorp	RCV001457683	SCV001661487	likely benign	Progressive sclerosing poliodystrophy	2024-01-31	criteria provided, single submitter	clinical testing
GenomeConnect, ClinGen	RCV000709782	SCV000840105	not provided	Progressive sclerosing poliodystrophy; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 1; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 1; Sensory ataxic neuropathy, dysarthria, and ophthalmoparesis; Mitochondrial DNA depletion syndrome 4b		no assertion provided	phenotyping only	GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant.
PreventionGenetics, part of Exact Sciences	RCV003985730	SCV004784891	likely benign	POLG-related disorder	2024-09-24	no assertion criteria provided	clinical testing	This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).