chr5-140561072-C-T

Variant summary

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

The NM_133173.3(APBB3):​c.862G>A​(p.Ala288Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

APBB3
NM_133173.3 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.75
Variant links:
Genes affected
APBB3 (HGNC:20708): (amyloid beta precursor protein binding family B member 3) The protein encoded by this gene is a member of the APBB protein family. It is found in the cytoplasm and binds to the intracellular domain of the Alzheimer's disease beta-amyloid precursor protein (APP) as well as to other APP-like proteins. It is thought that the protein encoded by this gene may modulate the internalization of APP. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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=0.22270977).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APBB3NM_133173.3 linkuse as main transcriptc.862G>A p.Ala288Thr missense_variant 10/13 ENST00000357560.9 NP_573419.2 O95704-1Q59EH2Q96DX9
APBB3NM_006051.4 linkuse as main transcriptc.883G>A p.Ala295Thr missense_variant 10/13 NP_006042.3 O95704-4Q59EH2Q96DX9
APBB3NM_133172.3 linkuse as main transcriptc.877G>A p.Ala293Thr missense_variant 9/12 NP_573418.2 O95704-3Q59EH2Q96DX9
APBB3NM_133174.3 linkuse as main transcriptc.856G>A p.Ala286Thr missense_variant 9/12 NP_573420.2 O95704-2Q59EH2Q96DX9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APBB3ENST00000357560.9 linkuse as main transcriptc.862G>A p.Ala288Thr missense_variant 10/135 NM_133173.3 ENSP00000350171.4 O95704-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00000342
AC:
5
AN:
1461726
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
727174
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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
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 submitterclinical testingAmbry GeneticsDec 22, 2023The c.862G>A (p.A288T) alteration is located in exon 10 (coding exon 10) of the APBB3 gene. This alteration results from a G to A substitution at nucleotide position 862, causing the alanine (A) at amino acid position 288 to be replaced by a threonine (T). 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
0.076
BayesDel_addAF
Benign
-0.060
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.017
T;.;.;T;.;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.95
D;D;D;D;D;D
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.22
T;T;T;T;T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.6
.;.;.;L;.;.
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
0.33
N;N;N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.30
T;T;T;T;T;T
Sift4G
Benign
0.097
T;T;T;T;T;T
Polyphen
0.96, 0.83, 0.74
.;D;.;.;P;P
Vest4
0.38
MVP
0.75
MPC
0.89
ClinPred
0.65
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.061
gMVP
0.31

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: rs1294046308; hg19: chr5-139940657; API