rs11669576
Variant summary
Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BS2BA1BP4BP2
This summary comes from the ClinGen Evidence Repository: The NM_000527.5(LDLR):c.1171G>A (p.Ala391Thr) variant is classified as Benign for Familial Hypercholesterolemia by applying evidence codes BA1, BS2, BP2 and BP4 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (https://doi.org/10.1101/2021.03.17.21252755). The supporting evidence is as follows: BA1 - FAF = 0.1752 (17.52%) in African exomes (gnomAD v2.1.1); frequency meets BA1 >0.5%BS2 - Case-level data in VCI indicates this variant is identified in heterozygosity in 1894 normolipidemic individuals, as well as in homozygosity in 58 normolipidemic individuals.BP2 - Case-level data present in VCI indicates this variant has been identified to co-occur with Pathogenic LDLR variants in at least 3 index cases with heterozygous FH phenotype.BP4 - REVEL = 0.309; score is below BP4 threshold of <0.50. splicing evaluation is required. Functional data on splicing not available. A) not on limits B) does not create GT C) no nearby GT. LINK:https://erepo.genome.network/evrepo/ui/classification/CA023426/MONDO:0007750/013
Frequency
Consequence
NM_000527.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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LDLR | NM_000527.5 | c.1171G>A | p.Ala391Thr | missense_variant | Exon 8 of 18 | ENST00000558518.6 | NP_000518.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0801 AC: 12192AN: 152174Hom.: 765 Cov.: 31
GnomAD3 exomes AF: 0.0434 AC: 10892AN: 250704Hom.: 450 AF XY: 0.0408 AC XY: 5527AN XY: 135630
GnomAD4 exome AF: 0.0475 AC: 69434AN: 1461152Hom.: 2184 Cov.: 32 AF XY: 0.0460 AC XY: 33454AN XY: 726870
GnomAD4 genome AF: 0.0801 AC: 12198AN: 152292Hom.: 764 Cov.: 31 AF XY: 0.0761 AC XY: 5669AN XY: 74454
ClinVar
Submissions by phenotype
Hypercholesterolemia, familial, 1 Benign:13
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MAF = 0.10 in normolipidemic controls; MAF = 8,7% in 86 Spanish healthy individuals; 0/200 Brazilian (european ancestry) normolipidemic individuals; 0/100 healthy control individuals; 0/77 healthy control individuals -
Due to the increased occurrence of the mutation (>= 5%), this variant is classified as likely benign. -
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DLCN criteria >=3. -
The NM_000527.5(LDLR):c.1171G>A (p.Ala391Thr) variant is classified as Benign for Familial Hypercholesterolemia by applying evidence codes BA1, BS2, BP2 and BP4 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (https://doi.org/10.1101/2021.03.17.21252755). The supporting evidence is as follows: BA1 - FAF = 0.1752 (17.52%) in African exomes (gnomAD v2.1.1); frequency meets BA1 >0.5% BS2 - Case-level data in VCI indicates this variant is identified in heterozygosity in 1894 normolipidemic individuals, as well as in homozygosity in 58 normolipidemic individuals. BP2 - Case-level data present in VCI indicates this variant has been identified to co-occur with Pathogenic LDLR variants in at least 3 index cases with heterozygous FH phenotype. BP4 - REVEL = 0.309; score is below BP4 threshold of <0.50. splicing evaluation is required. Functional data on splicing not available. A) not on limits B) does not create GT C) no nearby GT. -
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subjects mutated among 2600 FH index cases screened = 201 6 being homozygotes / Software predictions: Benign -
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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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not specified Benign:5
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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. -
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Familial hypercholesterolemia Benign:4
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not provided Benign:2Other:1
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Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at