Variant 19-44907832-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_000041.4(APOE):c.116A>G(p.Gln39Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

APOE
NM_000041.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.410

Variant links:

Genes affected

APOE (HGNC:613): (apolipoprotein E) The protein encoded by this gene is a major apoprotein of the chylomicron. It binds to a specific liver and peripheral cell receptor, and is essential for the normal catabolism of triglyceride-rich lipoprotein constituents. This gene maps to chromosome 19 in a cluster with the related apolipoprotein C1 and C2 genes. Mutations in this gene result in familial dysbetalipoproteinemia, or type III hyperlipoproteinemia (HLP III), in which increased plasma cholesterol and triglycerides are the consequence of impaired clearance of chylomicron and VLDL remnants. [provided by RefSeq, Jun 2016]

APOE links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14005962).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APOE	NM_000041.4 linkuse as main transcript	c.116A>G	p.Gln39Arg	missense_variant	3/4	ENST00000252486.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
APOE	ENST00000252486.9 linkuse as main transcript	c.116A>G	p.Gln39Arg	missense_variant	3/4	1	NM_000041.4	P1
APOE	ENST00000425718.1 linkuse as main transcript	c.116A>G	p.Gln39Arg	missense_variant	2/3	1
APOE	ENST00000434152.5 linkuse as main transcript	c.194A>G	p.Gln65Arg	missense_variant	3/4	2
APOE	ENST00000446996.5 linkuse as main transcript	c.116A>G	p.Gln39Arg	missense_variant	3/4	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000240

AC:

AN:

250202

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135478

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000327

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461674

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727122

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000176

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 04, 2024

The c.116A>G (p.Q39R) alteration is located in exon 3 (coding exon 2) of the APOE gene. This alteration results from a A to G substitution at nucleotide position 116, causing the glutamine (Q) at amino acid position 39 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.30

Cadd

Benign

Dann

Benign

0.96

DEOGEN2

Benign

0.27

T;T;.;.

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.72

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.60

T;T;T;T

M_CAP

Benign

0.069

MetaRNN

Benign

0.14

T;T;T;T

MetaSVM

Benign

-0.43

MutationAssessor

Pathogenic

3.0

M;.;.;.

MutationTaster

Benign

1.0

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.7

N;N;.;N

REVEL

Benign

0.23

Sift

Uncertain

0.0070

D;D;.;D

Sift4G

Uncertain

0.051

T;D;T;D

Polyphen

0.46

P;.;.;.

Vest4

0.22

MutPred

0.32

Gain of MoRF binding (P = 0.0331);Gain of MoRF binding (P = 0.0331);.;Gain of MoRF binding (P = 0.0331);

MVP

0.95

MPC

0.94

ClinPred

0.096

GERP RS

1.4

Varity_R

0.23

gMVP

0.34

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over