15-29053916-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001353788.2(APBA2):c.32G>A(p.Ser11Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,612,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. S11S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

APBA2
NM_001353788.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.86

Variant links:

Genes affected

APBA2 (HGNC:579): (amyloid beta precursor protein binding family A member 2) The protein encoded by this gene is a member of the X11 protein family. It is a neuronal adapter protein that interacts with the Alzheimer's disease amyloid precursor protein (APP). It stabilizes APP and inhibits production of proteolytic APP fragments including the A beta peptide that is deposited in the brains of Alzheimer's disease patients. This gene product is believed to be involved in signal transduction processes. It is also regarded as a putative vesicular trafficking protein in the brain that can form a complex with the potential to couple synaptic vesicle exocytosis to neuronal cell adhesion. [provided by RefSeq, Jul 2017]

APBA2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16916287).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APBA2	NM_001353788.2 linkuse as main transcript	c.32G>A	p.Ser11Asn	missense_variant	4/15	ENST00000683413.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APBA2	ENST00000683413.1 linkuse as main transcript	c.32G>A	p.Ser11Asn	missense_variant	4/15		NM_001353788.2	P1	Q99767-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152044

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1460830

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726498

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000810

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152044

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74242

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000386

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2022

The c.32G>A (p.S11N) alteration is located in exon 3 (coding exon 1) of the APBA2 gene. This alteration results from a G to A substitution at nucleotide position 32, causing the serine (S) at amino acid position 11 to be replaced by an asparagine (N). 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

0.082

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.72

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.16

T;T;.;T;T;.;T;.;T

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.85

M_CAP

Benign

0.017

MetaRNN

Benign

0.17

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

L;L;L;.;L;L;.;.;.

MutationTaster

Benign

0.50

D;D;D;D;D

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.76

N;N;N;D;N;N;D;D;N

Sift

Benign

0.098

T;T;T;T;T;T;T;.;T

Sift4G

Uncertain

0.022

D;D;D;D;D;D;D;D;D

Polyphen

0.0010

B;B;.;.;B;.;.;.;.

Vest4

0.053

MutPred

0.19

Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);Loss of glycosylation at S11 (P = 0.0233);

MVP

0.39

MPC

0.38

ClinPred

0.11

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.060

gMVP

0.22

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