rs1325443043
Positions:
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7
The NM_000384.3(APOB):āc.2184T>Cā(p.Asp728=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: not found (cov: 32)
Exomes š: 0.0000027 ( 0 hom. )
Consequence
APOB
NM_000384.3 synonymous
NM_000384.3 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.04
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_benign. Variant got -4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
?
Variant 2-21026848-A-G is Benign according to our data. Variant chr2-21026848-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 523731.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.
BP7
?
Synonymous conserved (PhyloP=1.04 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
APOB | NM_000384.3 | c.2184T>C | p.Asp728= | synonymous_variant | 15/29 | ENST00000233242.5 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
APOB | ENST00000233242.5 | c.2184T>C | p.Asp728= | synonymous_variant | 15/29 | 1 | NM_000384.3 | P1 | |
APOB | ENST00000399256.4 | c.2184T>C | p.Asp728= | synonymous_variant | 15/17 | 1 | |||
APOB | ENST00000673739.2 | c.*1490T>C | 3_prime_UTR_variant, NMD_transcript_variant | 14/25 | |||||
APOB | ENST00000673882.2 | c.*1490T>C | 3_prime_UTR_variant, NMD_transcript_variant | 14/23 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461786Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727202
GnomAD4 exome
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4
AN:
1461786
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31
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3
AN XY:
727202
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Hypercholesterolemia, familial, 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | research | Iberoamerican FH Network | Mar 01, 2016 | - - |
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 16, 2019 | This alteration is classified as likely 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:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
Name
Calibrated prediction
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at