11-116836157-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000039.3(APOA1):ā€‹c.455A>Gā€‹(p.Glu152Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E152K) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

APOA1
NM_000039.3 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.81
Variant links:
Genes affected
APOA1 (HGNC:600): (apolipoprotein A1) This gene encodes apolipoprotein A-I, which is the major protein component of high density lipoprotein (HDL) in plasma. The encoded preproprotein is proteolytically processed to generate the mature protein, which promotes cholesterol efflux from tissues to the liver for excretion, and is a cofactor for lecithin cholesterolacyltransferase (LCAT), an enzyme responsible for the formation of most plasma cholesteryl esters. This gene is closely linked with two other apolipoprotein genes on chromosome 11. Defects in this gene are associated with HDL deficiencies, including Tangier disease, and with systemic non-neuropathic amyloidosis. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein. [provided by RefSeq, Dec 2015]
APOA1-AS (HGNC:40079): (APOA1 antisense RNA)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37735903).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APOA1NM_000039.3 linkuse as main transcriptc.455A>G p.Glu152Gly missense_variant 4/4 ENST00000236850.5
APOA1-ASNR_126362.1 linkuse as main transcriptn.41T>C non_coding_transcript_exon_variant 1/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APOA1ENST00000236850.5 linkuse as main transcriptc.455A>G p.Glu152Gly missense_variant 4/41 NM_000039.3 P1
APOA1-ASENST00000669664.1 linkuse as main transcript upstream_gene_variant

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461192
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
726926
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMayo Clinic Laboratories, Mayo ClinicDec 18, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.013
T
BayesDel_noAF
Benign
-0.22
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.38
T;T;T;T;T
Eigen
Benign
0.055
Eigen_PC
Benign
-0.084
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.77
.;.;T;.;T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.38
T;T;T;T;T
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Uncertain
2.6
M;M;.;M;M
MutationTaster
Benign
1.0
N;N;N;N;N
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-2.8
D;D;D;D;D
REVEL
Uncertain
0.40
Sift
Uncertain
0.011
D;D;D;D;D
Sift4G
Uncertain
0.024
D;D;D;D;D
Polyphen
0.81
P;P;.;P;P
Vest4
0.28
MutPred
0.45
Gain of MoRF binding (P = 0.0311);Gain of MoRF binding (P = 0.0311);.;Gain of MoRF binding (P = 0.0311);Gain of MoRF binding (P = 0.0311);
MVP
0.94
MPC
1.2
ClinPred
0.93
D
GERP RS
4.9
Varity_R
0.43
gMVP
0.30

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: rs1591330034; hg19: chr11-116706873; API