NM_000384.3:c.6936C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000384.3(APOB):c.6936C>T(p.Asp2312Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.459 in 1,613,400 control chromosomes in the GnomAD database, including 181,005 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.38 ( 12426 hom., cov: 33)

Exomes 𝑓: 0.47 ( 168579 hom. )

Consequence

APOB
NM_000384.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -0.386

Publications

37 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: Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
familial hypobetalipoproteinemia 1
Inheritance: AR, AD, SD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, 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

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BP6

Variant 2-21009932-G-A is Benign according to our data. Variant chr2-21009932-G-A is described in ClinVar as Benign. ClinVar VariationId is 1169879.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.386 with no splicing effect.

BA1

GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.495 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APOB	NM_000384.3 link	c.6936C>T	p.Asp2312Asp	synonymous_variant	Exon 26 of 29	ENST00000233242.5	NP_000375.3	P04114Q7Z7Q0Q59HB3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APOB	ENST00000233242.5 link	c.6936C>T	p.Asp2312Asp	synonymous_variant	Exon 26 of 29	1	NM_000384.3	ENSP00000233242.1		P04114

Frequencies

GnomAD3 genomes

AF:

0.381

AC:

57852

AN:

152002

Hom.:

12426

Cov.:

show subpopulations

Gnomad AFR

AF:

0.229

Gnomad AMI

AF:

0.533

Gnomad AMR

AF:

0.411

Gnomad ASJ

AF:

0.355

Gnomad EAS

AF:

0.0542

Gnomad SAS

AF:

0.239

Gnomad FIN

AF:

0.386

Gnomad MID

AF:

0.339

Gnomad NFE

AF:

0.500

Gnomad OTH

AF:

0.372

GnomAD2 exomes

AF:

0.388

AC:

97366

AN:

250982

AF XY:

0.390

show subpopulations

Gnomad AFR exome

AF:

0.220

Gnomad AMR exome

AF:

0.380

Gnomad ASJ exome

AF:

0.346

Gnomad EAS exome

AF:

0.0569

Gnomad FIN exome

AF:

0.404

Gnomad NFE exome

AF:

0.501

Gnomad OTH exome

AF:

0.419

GnomAD4 exome

AF:

0.467

AC:

682753

AN:

1461280

Hom.:

168579

Cov.:

AF XY:

0.461

AC XY:

335379

AN XY:

726938

show subpopulations

African (AFR)

AF:

0.209

AC:

6997

AN:

33458

American (AMR)

AF:

0.381

AC:

17038

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.353

AC:

9214

AN:

26120

East Asian (EAS)

AF:

0.0527

AC:

2091

AN:

39654

South Asian (SAS)

AF:

0.267

AC:

23024

AN:

86238

European-Finnish (FIN)

AF:

0.411

AC:

21928

AN:

53368

Middle Eastern (MID)

AF:

0.334

AC:

1923

AN:

5762

European-Non Finnish (NFE)

AF:

0.517

AC:

574705

AN:

1111592

Other (OTH)

AF:

0.428

AC:

25833

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

21481

42962

64444

85925

107406

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

16184

32368

48552

64736

80920

<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:

0.380

AC:

57857

AN:

152120

Hom.:

12426

Cov.:

AF XY:

0.371

AC XY:

27591

AN XY:

74332

show subpopulations

African (AFR)

AF:

0.229

AC:

9490

AN:

41512

American (AMR)

AF:

0.411

AC:

6284

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.355

AC:

1230

AN:

3468

East Asian (EAS)

AF:

0.0541

AC:

280

AN:

5176

South Asian (SAS)

AF:

0.240

AC:

1157

AN:

4824

European-Finnish (FIN)

AF:

0.386

AC:

4082

AN:

10562

Middle Eastern (MID)

AF:

0.337

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.500

AC:

33967

AN:

67980

Other (OTH)

AF:

0.370

AC:

782

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

1766

3532

5299

7065

8831

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

534

1068

1602

2136

2670

<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:

0.451

Hom.:

21579

Bravo

AF:

0.375

Asia WGS

AF:

0.164

AC:

575

AN:

3478

EpiCase

AF:

0.486

EpiControl

AF:

0.485

ClinVar

Significance: Benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Apr 09, 2025

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Nov 30, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Familial hypercholesterolemia

Benign:2

Sep 19, 2022

Cohesion Phenomics

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jun 21, 2022

GENinCode PLC

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

Benign:1

Dec 16, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hypercholesterolemia, autosomal dominant, type B

Benign:1

Jul 14, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Familial hypobetalipoproteinemia 1

Benign:1

Jul 14, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Dec 10, 2015

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.57

(source)

DANN

Benign

0.19

PhyloP100

-0.39

Mutation Taster

=100/0

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over