rs1555803471
Positions:
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM4PP5_Moderate
The NM_000527.5(LDLR):c.681_682insTCAGGGAAACCCGACTGC(p.Asp227_Glu228insSerGlyLysProAspCys) variant causes a inframe insertion change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. D227D) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 33)
Consequence
LDLR
NM_000527.5 inframe_insertion
NM_000527.5 inframe_insertion
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -0.218
Genes affected
LDLR (HGNC:6547): (low density lipoprotein receptor) The low density lipoprotein receptor (LDLR) gene family consists of cell surface proteins involved in receptor-mediated endocytosis of specific ligands. The encoded protein is normally bound at the cell membrane, where it binds low density lipoprotein/cholesterol and is taken into the cell. Lysosomes release the cholesterol, which is made available for repression of microsomal enzyme 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase, the rate-limiting step in cholesterol synthesis. At the same time, a reciprocal stimulation of cholesterol ester synthesis takes place. Mutations in this gene cause the autosomal dominant disorder, familial hypercholesterolemia. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2022]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
PM1
?
In a hotspot region, there are 9 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 8 uncertain in NM_000527.5
PM2
?
Very rare variant in population databases, with high coverage;
PM4
?
Nonframeshift variant in NON repetitive region in NM_000527.5.
PP5
?
Variant 19-11105586-A-ACTCAGGGAAACCCGACTG is Pathogenic according to our data. Variant chr19-11105586-A-ACTCAGGGAAACCCGACTG is described in ClinVar as [Likely_pathogenic]. Clinvar id is 441190.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LDLR | NM_000527.5 | c.681_682insTCAGGGAAACCCGACTGC | p.Asp227_Glu228insSerGlyLysProAspCys | inframe_insertion | 4/18 | ENST00000558518.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LDLR | ENST00000558518.6 | c.681_682insTCAGGGAAACCCGACTGC | p.Asp227_Glu228insSerGlyLysProAspCys | inframe_insertion | 4/18 | 1 | NM_000527.5 | P3 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 34
GnomAD4 exome
Cov.:
34
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hypercholesterolemia, familial, 1 Pathogenic:1
Likely pathogenic, criteria provided, single submitter | research | Fundacion Hipercolesterolemia Familiar | Mar 01, 2016 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at