chr2-21006288-C-A
Position:
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2PM5PP3_StrongPP5
The NM_000384.3(APOB):c.10580G>T(p.Arg3527Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R3527Q) has been classified as Likely pathogenic.
Frequency
Genomes: not found (cov: 33)
Consequence
APOB
NM_000384.3 missense
NM_000384.3 missense
Scores
9
5
2
Clinical Significance
Conservation
PhyloP100: 6.11
Genes affected
APOB (HGNC:603): (apolipoprotein B) This gene product is the main apolipoprotein of chylomicrons and low density lipoproteins (LDL), and is the ligand for the LDL receptor. It occurs in plasma as two main isoforms, apoB-48 and apoB-100: the former is synthesized exclusively in the gut and the latter in the liver. The intestinal and the hepatic forms of apoB are encoded by a single gene from a single, very long mRNA. The two isoforms share a common N-terminal sequence. The shorter apoB-48 protein is produced after RNA editing of the apoB-100 transcript at residue 2180 (CAA->UAA), resulting in the creation of a stop codon, and early translation termination. Mutations in this gene or its regulatory region cause hypobetalipoproteinemia, normotriglyceridemic hypobetalipoproteinemia, and hypercholesterolemia due to ligand-defective apoB, diseases affecting plasma cholesterol and apoB levels. [provided by RefSeq, Dec 2019]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chr2-21006288-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 17890.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.972
PP5
?
Variant 2-21006288-C-A is Pathogenic according to our data. Variant chr2-21006288-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 440523.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr2-21006288-C-A is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
APOB | NM_000384.3 | c.10580G>T | p.Arg3527Leu | missense_variant | 26/29 | ENST00000233242.5 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
APOB | ENST00000233242.5 | c.10580G>T | p.Arg3527Leu | missense_variant | 26/29 | 1 | NM_000384.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 36
GnomAD4 exome
Cov.:
36
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Hypercholesterolemia, familial, 1 Pathogenic:1
Pathogenic, no assertion criteria provided | research | Laboratorium voor Moleculaire Diagnostiek Experimentele Vasculaire Geneeskunde, Academisch Medisch Centrum | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationTaster
Benign
D
PrimateAI
Benign
T
PROVEAN
Pathogenic
D
REVEL
Pathogenic
Sift
Uncertain
D
Sift4G
Pathogenic
D
Vest4
MutPred
Loss of MoRF binding (P = 0.0054);
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at