NM_000384.3:c.6937A>G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000384.3(APOB):​c.6937A>G​(p.Ile2313Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.997 in 1,613,922 control chromosomes in the GnomAD database, including 801,973 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.98 ( 73909 hom., cov: 33)
Exomes 𝑓: 1.0 ( 728064 hom. )

Consequence

APOB
NM_000384.3 missense

Scores

15

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.238
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=1.881807E-6).
BP6
Variant 2-21009931-T-C is Benign according to our data. Variant chr2-21009931-T-C is described in ClinVar as [Benign]. Clinvar id is 1168905.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
APOBNM_000384.3 linkc.6937A>G p.Ile2313Val missense_variant Exon 26 of 29 ENST00000233242.5 NP_000375.3 P04114Q7Z7Q0Q59HB3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
APOBENST00000233242.5 linkc.6937A>G p.Ile2313Val missense_variant Exon 26 of 29 1 NM_000384.3 ENSP00000233242.1 P04114

Frequencies

GnomAD3 genomes
AF:
0.985
AC:
149910
AN:
152224
Hom.:
73850
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.947
Gnomad AMI
AF:
1.00
Gnomad AMR
AF:
0.995
Gnomad ASJ
AF:
1.00
Gnomad EAS
AF:
0.999
Gnomad SAS
AF:
0.999
Gnomad FIN
AF:
1.00
Gnomad MID
AF:
1.00
Gnomad NFE
AF:
1.00
Gnomad OTH
AF:
0.987
GnomAD3 exomes
AF:
0.996
AC:
250044
AN:
251108
Hom.:
124516
AF XY:
0.997
AC XY:
135296
AN XY:
135714
show subpopulations
Gnomad AFR exome
AF:
0.947
Gnomad AMR exome
AF:
0.997
Gnomad ASJ exome
AF:
1.00
Gnomad EAS exome
AF:
0.999
Gnomad SAS exome
AF:
0.999
Gnomad FIN exome
AF:
1.00
Gnomad NFE exome
AF:
1.00
Gnomad OTH exome
AF:
0.998
GnomAD4 exome
AF:
0.998
AC:
1458786
AN:
1461580
Hom.:
728064
Cov.:
53
AF XY:
0.998
AC XY:
725876
AN XY:
727098
show subpopulations
Gnomad4 AFR exome
AF:
0.941
Gnomad4 AMR exome
AF:
0.997
Gnomad4 ASJ exome
AF:
1.00
Gnomad4 EAS exome
AF:
1.00
Gnomad4 SAS exome
AF:
1.00
Gnomad4 FIN exome
AF:
1.00
Gnomad4 NFE exome
AF:
1.00
Gnomad4 OTH exome
AF:
0.996
GnomAD4 genome
AF:
0.985
AC:
150027
AN:
152342
Hom.:
73909
Cov.:
33
AF XY:
0.985
AC XY:
73377
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.948
Gnomad4 AMR
AF:
0.995
Gnomad4 ASJ
AF:
1.00
Gnomad4 EAS
AF:
0.999
Gnomad4 SAS
AF:
1.00
Gnomad4 FIN
AF:
1.00
Gnomad4 NFE
AF:
1.00
Gnomad4 OTH
AF:
0.987
Alfa
AF:
0.997
Hom.:
122230
Bravo
AF:
0.983
TwinsUK
AF:
0.999
AC:
3706
ALSPAC
AF:
1.00
AC:
3853
ESP6500AA
AF:
0.947
AC:
4172
ESP6500EA
AF:
0.999
AC:
8595
ExAC
AF:
0.995
AC:
120801
Asia WGS
AF:
0.997
AC:
3467
AN:
3478
EpiCase
AF:
1.00
EpiControl
AF:
0.999

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
-
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

- -

not provided Benign:2
Nov 30, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Hypercholesterolemia, autosomal dominant, type B;C4551990:Familial hypobetalipoproteinemia 1 Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.74
T
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.041
DANN
Benign
0.19
Eigen
Benign
-2.0
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.17
N
MetaRNN
Benign
0.0000019
T
MetaSVM
Benign
-0.98
T
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.11
N
REVEL
Benign
0.014
Sift
Benign
0.63
T
Sift4G
Benign
0.64
T
Vest4
0.032
MPC
0.033
ClinPred
0.00047
T
GERP RS
-3.8
gMVP
0.17

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs584542; hg19: chr2-21232803; API