Genetic Variant NM_004886.4:c.1604T>G (chr19-3751241-A-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_004886.4(APBA3):c.1604T>G(p.Val535Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000717 in 1,395,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

APBA3
NM_004886.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.92

Publications

0 publications found

Variant links:

Genes affected

APBA3 (HGNC:580): (amyloid beta precursor protein binding family A member 3) The protein encoded by this gene is a member of the X11 protein family. It is an adapter protein that interacts with the Alzheimer's disease amyloid precursor protein. This gene product is believed to be involved in signal transduction processes. This gene is a candidate gene for Alzheimer's disease. [provided by RefSeq, Jul 2008]

APBA3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.838

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004886.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APBA3	NM_004886.4	MANE Select	c.1604T>G	p.Val535Gly	missense	Exon 10 of 11	NP_004877.1	O96018

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
APBA3	ENST00000316757.4	TSL:1 MANE Select	c.1604T>G	p.Val535Gly	missense	Exon 10 of 11	ENSP00000315136.2	O96018
APBA3	ENST00000590064.1	TSL:1	n.3979T>G		non_coding_transcript_exon	Exon 3 of 4
APBA3	ENST00000591678.1	TSL:1	n.491T>G		non_coding_transcript_exon	Exon 1 of 2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.17e-7

AC:

AN:

1395328

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

688612

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31722

American (AMR)

AF:

0.00

AC:

AN:

35994

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25168

East Asian (EAS)

AF:

0.00

AC:

AN:

35930

South Asian (SAS)

AF:

0.00

AC:

AN:

79344

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4612

European-Non Finnish (NFE)

AF:

9.26e-7

AC:

AN:

1080070

Other (OTH)

AF:

0.00

AC:

AN:

57910

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

Eigen

Pathogenic

0.76

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.84

MetaSVM

Benign

-0.48

MutationAssessor

Uncertain

2.0

PhyloP100

8.9

PrimateAI

Benign

0.48

PROVEAN

Pathogenic

-6.5

REVEL

Uncertain

0.57

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.71

MutPred

0.40

Gain of disorder (P = 0.0332)

MVP

0.73

MPC

0.37

ClinPred

1.0

GERP RS

4.5

Varity_R

0.88

gMVP

0.72

Mutation Taster

=8/92

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over