chr11-6396146-C-A

Position:

chr11-6396146-C-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting

The NM_001164.5(APBB1):c.1742G>T(p.Ser581Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000045 in 1,553,956 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 (★).

Frequency

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

Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

APBB1
NM_001164.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.52

Variant links:

Genes affected

APBB1 (HGNC:581): (amyloid beta precursor protein binding family B member 1) The protein encoded by this gene is a member of the Fe65 protein family. It is an adaptor protein localized in the nucleus. It interacts with the Alzheimer's disease amyloid precursor protein (APP), transcription factor CP2/LSF/LBP1 and the low-density lipoprotein receptor-related protein. APP functions as a cytosolic anchoring site that can prevent the gene product's nuclear translocation. This encoded protein could play an important role in the pathogenesis of Alzheimer's disease. It is thought to regulate transcription. Also it is observed to block cell cycle progression by downregulating thymidylate synthase expression. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Mar 2012]

APBB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.24668467).

BS2

High AC in GnomAdExome4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APBB1	NM_001164.5 linkuse as main transcript	c.1742G>T	p.Ser581Ile	missense_variant	13/15	ENST00000609360.6	NP_001155.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APBB1	ENST00000609360.6 linkuse as main transcript	c.1742G>T	p.Ser581Ile	missense_variant	13/15	5	NM_001164.5	ENSP00000477213	A1	O00213-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152196

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:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000245

AC:

AN:

163116

Hom.:

AF XY:

0.0000117

AC XY:

AN XY:

85572

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000349

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000357

AC:

AN:

1401760

Hom.:

Cov.:

AF XY:

0.00000434

AC XY:

AN XY:

691892

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000837

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000185

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000385

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

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 submitter

clinical testing

Ambry Genetics

Jan 02, 2024

The c.1742G>T (p.S581I) alteration is located in exon 13 (coding exon 12) of the APBB1 gene. This alteration results from a G to T substitution at nucleotide position 1742, causing the serine (S) at amino acid position 581 to be replaced by an isoleucine (I). 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

Uncertain

0.38

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.014

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

Eigen

Benign

0.027

Eigen_PC

Benign

0.21

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.81

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

M_CAP

Benign

0.0062

MetaRNN

Benign

0.25

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

MetaSVM

Benign

-0.98

MutationAssessor

Benign

-0.20

.;.;.;.;.;.;.;N;.;.;.;.;.;.

MutationTaster

Benign

0.98

D;D;D;D

PrimateAI

Uncertain

0.61

PROVEAN

Benign

1.7

.;.;.;N;.;.;N;.;N;.;.;.;.;N

REVEL

Benign

0.15

Sift

Benign

0.091

.;.;.;T;.;.;T;.;T;.;.;.;.;D

Sift4G

Benign

0.18

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

Polyphen

0.34, 0.82

.;.;.;.;.;.;B;P;B;.;.;.;.;.

Vest4

0.61

MutPred

0.43

.;.;.;Loss of disorder (P = 0.0028);.;.;.;Loss of disorder (P = 0.0028);.;.;.;.;.;.;

MVP

0.66

MPC

0.45

ClinPred

0.12

GERP RS

5.6

Varity_R

0.72

gMVP

0.81

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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