Submissions for variant NM_000384.3(APOB):c.2861C>T (p.Pro954Leu)

gnomAD frequency: 0.00001  dbSNP: rs148943299

Total submissions: 4

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Illumina Laboratory Services, Illumina	RCV000376174	SCV000427124	uncertain significance	Familial hypobetalipoproteinemia 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.
Illumina Laboratory Services, Illumina	RCV000284034	SCV000427125	uncertain significance	Hypercholesterolemia, autosomal dominant, type B	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.
Invitae	RCV001837870	SCV001056452	likely benign	Hypercholesterolemia, autosomal dominant, type B; Familial hypobetalipoproteinemia 1	2024-02-01	criteria provided, single submitter	clinical testing
Ambry Genetics	RCV002436194	SCV002749735	uncertain significance	Cardiovascular phenotype	2021-10-01	criteria provided, single submitter	clinical testing	The p.P954L variant (also known as c.2861C>T), located in coding exon 19 of the APOB gene, results from a C to T substitution at nucleotide position 2861. The proline at codon 954 is replaced by leucine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species, and leucine is the reference amino acid in other 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.