Variant 9-69456344-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001163.4(APBA1):c.1691C>G(p.Pro564Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,824 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

APBA1
NM_001163.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.32

Variant links:

Genes affected

APBA1 (HGNC:578): (amyloid beta precursor protein binding family A member 1) 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 2008]

APBA1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APBA1	NM_001163.4 linkuse as main transcript	c.1691C>G	p.Pro564Arg	missense_variant	8/13	ENST00000265381.7	NP_001154.2	Q02410-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
APBA1	ENST00000265381.7 linkuse as main transcript	c.1691C>G	p.Pro564Arg	missense_variant	8/13	1	NM_001163.4	ENSP00000265381.3	Q02410-1
APBA1	ENST00000699288.1 linkuse as main transcript	c.536C>G	p.Pro179Arg	missense_variant	7/12			ENSP00000514269.1	A0A8V8TPS8
APBA1	ENST00000470082.2 linkuse as main transcript	c.302C>G	p.Pro101Arg	missense_variant	3/3	2		ENSP00000486435.1	A0A0D9SFA9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461824

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727214

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

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

Dec 12, 2023

The c.1691C>G (p.P564R) alteration is located in exon 8 (coding exon 7) of the APBA1 gene. This alteration results from a C to G substitution at nucleotide position 1691, causing the proline (P) at amino acid position 564 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

Pathogenic

0.59

BayesDel_addAF

Benign

0.0072

BayesDel_noAF

Benign

-0.23

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;.

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.84

T;.

M_CAP

Benign

0.011

MetaRNN

Uncertain

0.57

D;D

MetaSVM

Benign

-0.64

MutationAssessor

Uncertain

2.6

M;.

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-4.0

D;.

REVEL

Uncertain

0.35

Sift

Uncertain

0.0040

D;.

Sift4G

Uncertain

0.014

D;.

Polyphen

0.99

D;.

Vest4

0.60

MutPred

0.54

Gain of MoRF binding (P = 0.0084);.;

MVP

0.52

MPC

1.4

ClinPred

0.98

GERP RS

6.1

Varity_R

0.34

gMVP

0.36

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