rs1801698

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000384.3(APOB):c.11833A>G(p.Thr3945Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00293 in 1,613,980 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0030 ( 10 hom. )

Consequence

APOB
NM_000384.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:10

Conservation

PhyloP100: 0.641

Publications

12 publications found

Variant links:

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]

APOB Gene-Disease associations (from GenCC):

hypercholesterolemia, autosomal dominant, type B
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
familial hypobetalipoproteinemia 1
Inheritance: AR, SD, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp
homozygous familial hypercholesterolemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

APOB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0032916665).

BP6

Variant 2-21004631-T-C is Benign according to our data. Variant chr2-21004631-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 334091.

BS2

High Homozygotes in GnomAdExome4 at 10 AD,AR,SD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000384.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APOB	NM_000384.3	MANE Select	c.11833A>G	p.Thr3945Ala	missense	Exon 27 of 29	NP_000375.3	P04114

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APOB	ENST00000233242.5	TSL:1 MANE Select	c.11833A>G	p.Thr3945Ala	missense	Exon 27 of 29	ENSP00000233242.1	P04114

Frequencies

GnomAD3 genomes

AF:

0.00204

AC:

310

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000844

Gnomad AMI

AF:

0.00548

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00603

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00297

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.00236

AC:

593

AN:

251372

AF XY:

0.00218

show subpopulations

Gnomad AFR exome

AF:

0.000800

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00601

Gnomad NFE exome

AF:

0.00382

Gnomad OTH exome

AF:

0.00228

GnomAD4 exome

AF:

0.00302

AC:

4419

AN:

1461622

Hom.:

Cov.:

AF XY:

0.00295

AC XY:

2146

AN XY:

727130

show subpopulations

African (AFR)

AF:

0.000717

AC:

AN:

33456

American (AMR)

AF:

0.0000895

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00616

AC:

329

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00355

AC:

3946

AN:

1111812

Other (OTH)

AF:

0.00190

AC:

115

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

216

432

649

865

1081

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

150

300

450

600

750

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00203

AC:

310

AN:

152358

Hom.:

Cov.:

AF XY:

0.00205

AC XY:

153

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.000842

AC:

AN:

41586

American (AMR)

AF:

0.000196

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00603

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00297

AC:

202

AN:

68034

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00251

Hom.:

Bravo

AF:

0.00176

TwinsUK

AF:

0.00270

AC:

ALSPAC

AF:

0.00311

AC:

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00244

AC:

ExAC

AF:

0.00265

AC:

322

EpiCase

AF:

0.00267

EpiControl

AF:

0.00231

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

not specified (2)

APOB-related disorder (1)

Cardiovascular phenotype (1)

Familial hypobetalipoproteinemia 1 (1)

Hypercholesterolemia, autosomal dominant, type B (1)

Hypercholesterolemia, autosomal dominant, type B;C4551990:Familial hypobetalipoproteinemia 1 (1)

Hypercholesterolemia, familial, 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.70

BayesDel_noAF

Benign

-0.78

CADD

Benign

(source)

DANN

Benign

0.77

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.32

M_CAP

Benign

0.0089

MetaRNN

Benign

0.0033

MetaSVM

Benign

-1.0

PhyloP100

0.64

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.7

REVEL

Benign

0.036

Sift

Benign

0.42

Sift4G

Uncertain

0.037

Vest4

0.049

MVP

0.42

MPC

0.042

ClinPred

0.0081

GERP RS

2.5

gMVP

0.55

Mutation Taster

=89/11

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over