rs28931576

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 1P and 3B. PP2BP4BP6_Moderate

The NM_000041.4(APOE):​c.178A>G​(p.Thr60Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

APOE
NM_000041.4 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter P:1B:1

Conservation

PhyloP100: -0.106

Publications

6 publications found
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 Gene-Disease associations (from GenCC):
  • Alzheimer disease 2
    Inheritance: AD, Unknown Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hyperlipoproteinemia type 3
    Inheritance: AD, AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • lipoprotein glomerulopathy
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, Genomics England PanelApp
  • sea-blue histiocyte syndrome
    Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 16 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 0.74028 (below the threshold of 3.09). Trascript score misZ: -1.1391 (below the threshold of 3.09). GenCC associations: The gene is linked to hyperlipoproteinemia type 3, sea-blue histiocyte syndrome, lipoprotein glomerulopathy, Alzheimer disease 2.
BP4
Computational evidence support a benign effect (MetaRNN=0.4148036).
BP6
Variant 19-44907894-A-G is Benign according to our data. Variant chr19-44907894-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 17871.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
APOENM_000041.4 linkc.178A>G p.Thr60Ala missense_variant Exon 3 of 4 ENST00000252486.9 NP_000032.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
APOEENST00000252486.9 linkc.178A>G p.Thr60Ala missense_variant Exon 3 of 4 1 NM_000041.4 ENSP00000252486.3
APOEENST00000425718.1 linkc.178A>G p.Thr60Ala missense_variant Exon 2 of 3 1 ENSP00000410423.1
APOEENST00000434152.5 linkc.256A>G p.Thr86Ala missense_variant Exon 3 of 4 2 ENSP00000413653.2
APOEENST00000446996.5 linkc.178A>G p.Thr60Ala missense_variant Exon 3 of 4 2 ENSP00000413135.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250898
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461708
Hom.:
0
Cov.:
32
AF XY:
0.0000248
AC XY:
18
AN XY:
727136
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53394
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5730
European-Non Finnish (NFE)
AF:
0.0000261
AC:
29
AN:
1111920
Other (OTH)
AF:
0.00
AC:
0
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152296
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41556
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000336
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Pathogenic:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

APOE3(-)-FREIBURG Pathogenic:1
Aug 05, 2016
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Cardiovascular phenotype Benign:1
Mar 06, 2025
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely 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
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
16
DANN
Benign
0.97
DEOGEN2
Benign
0.28
T;T;.;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.32
FATHMM_MKL
Benign
0.28
N
LIST_S2
Benign
0.54
T;T;T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.41
T;T;T;T
MetaSVM
Benign
-0.68
T
MutationAssessor
Uncertain
2.2
M;.;.;.
PhyloP100
-0.11
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.9
N;N;.;N
REVEL
Benign
0.18
Sift
Benign
0.078
T;T;.;T
Sift4G
Benign
0.78
T;T;T;T
Polyphen
0.0
B;.;.;.
Vest4
0.19
MutPred
0.15
Loss of MoRF binding (P = 0.1411);Loss of MoRF binding (P = 0.1411);.;Loss of MoRF binding (P = 0.1411);
MVP
0.92
MPC
0.60
ClinPred
0.14
T
GERP RS
1.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.19
gMVP
0.33
Mutation Taster
=27/73
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs28931576; hg19: chr19-45411151; API