rs1801699

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000384.3(APOB):c.5741A>G(p.Asn1914Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0191 in 1,614,218 control chromosomes in the GnomAD database, including 424 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N1914D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.017 ( 48 hom., cov: 33)

Exomes 𝑓: 0.019 ( 376 hom. )

Consequence

APOB
NM_000384.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:18

Conservation

PhyloP100: 4.20

Publications

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

APOB links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_000384.3, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0053982735).

BP6

Variant 2-21011127-T-C is Benign according to our data. Variant chr2-21011127-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 218447.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAdExome4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0608 is higher than 0.05.

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.5741A>G	p.Asn1914Ser	missense	Exon 26 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.5741A>G	p.Asn1914Ser	missense	Exon 26 of 29	ENSP00000233242.1	P04114
	APOB	ENST00000673739.2		n.*5047A>G		downstream_gene	N/A	ENSP00000501110.2	A0A669KB70

Frequencies

GnomAD3 genomes

AF:

0.0169

AC:

2576

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00492

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0440

Gnomad ASJ

AF:

0.0167

Gnomad EAS

AF:

0.000384

Gnomad SAS

AF:

0.00538

Gnomad FIN

AF:

0.0279

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.0188

Gnomad OTH

AF:

0.0167

GnomAD2 exomes

AF:

0.0224

AC:

5636

AN:

251360

AF XY:

0.0210

show subpopulations

Gnomad AFR exome

AF:

0.00449

Gnomad AMR exome

AF:

0.0659

Gnomad ASJ exome

AF:

0.0157

Gnomad EAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.0274

Gnomad NFE exome

AF:

0.0193

Gnomad OTH exome

AF:

0.0245

GnomAD4 exome

AF:

0.0193

AC:

28185

AN:

1461870

Hom.:

376

Cov.:

AF XY:

0.0188

AC XY:

13674

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00326

AC:

109

AN:

33478

American (AMR)

AF:

0.0627

AC:

2804

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0162

AC:

423

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39698

South Asian (SAS)

AF:

0.00612

AC:

528

AN:

86258

European-Finnish (FIN)

AF:

0.0284

AC:

1517

AN:

53420

Middle Eastern (MID)

AF:

0.0118

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0195

AC:

21668

AN:

1111994

Other (OTH)

AF:

0.0177

AC:

1066

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

1772

3544

5316

7088

8860

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

826

1652

2478

3304

4130

<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:

0.0170

AC:

2583

AN:

152348

Hom.:

Cov.:

AF XY:

0.0172

AC XY:

1283

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.00491

AC:

204

AN:

41580

American (AMR)

AF:

0.0445

AC:

681

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.0167

AC:

AN:

3472

East Asian (EAS)

AF:

0.000385

AC:

AN:

5194

South Asian (SAS)

AF:

0.00539

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.0279

AC:

296

AN:

10626

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0188

AC:

1280

AN:

68028

Other (OTH)

AF:

0.0165

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

127

254

382

509

636

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

104

130

<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:

0.0182

Hom.:

107

Bravo

AF:

0.0185

Asia WGS

AF:

0.00289

AC:

AN:

3478

EpiCase

AF:

0.0234

EpiControl

AF:

0.0197

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (7)

Hypercholesterolemia, familial, 1 (5)

not provided (2)

Cardiovascular phenotype (1)

Familial hypercholesterolemia (1)

Hypercholesterolemia, autosomal dominant, type B (1)

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

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.68

BayesDel_noAF

Benign

-0.70

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.20

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.97

MetaRNN

Benign

0.0054

MetaSVM

Benign

-0.43

PhyloP100

4.2

PrimateAI

Benign

0.32

PROVEAN

Uncertain

-2.6

REVEL

Benign

0.19

Sift

Uncertain

0.013

Sift4G

Uncertain

0.0060

gMVP

0.35

Mutation Taster

=89/11

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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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