Variant 11-130121762-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001142276.2(APLP2):c.665A>G(p.Glu222Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000744 in 1,331,134 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 (★).

Frequency

Genomes: 𝑓 0.000042 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

APLP2
NM_001142276.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.68

Variant links:

Genes affected

APLP2 (HGNC:598): (amyloid beta precursor like protein 2) This gene encodes amyloid precursor- like protein 2 (APLP2), which is a member of the APP (amyloid precursor protein) family including APP, APLP1 and APLP2. This protein is ubiquitously expressed. It contains heparin-, copper- and zinc- binding domains at the N-terminus, BPTI/Kunitz inhibitor and E2 domains in the middle region, and transmembrane and intracellular domains at the C-terminus. This protein interacts with major histocompatibility complex (MHC) class I molecules. The synergy of this protein and the APP is required to mediate neuromuscular transmission, spatial learning and synaptic plasticity. This protein has been implicated in the pathogenesis of Alzheimer's disease. Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

APLP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.087197274).

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APLP2	NM_001142276.2 linkuse as main transcript	c.665A>G	p.Glu222Gly	missense_variant	5/17	ENST00000338167.10	NP_001135748.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APLP2	ENST00000338167.10 linkuse as main transcript	c.665A>G	p.Glu222Gly	missense_variant	5/17	1	NM_001142276.2	ENSP00000345444	A2	Q06481-3

Frequencies

GnomAD3 genomes

AF:

0.0000418

AC:

AN:

119726

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000772

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000225

Gnomad FIN

AF:

0.000113

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000361

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000637

AC:

AN:

251166

Hom.:

AF XY:

0.0000663

AC XY:

AN XY:

135778

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000776

AC:

AN:

1211338

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

604886

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000254

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000114

Gnomad4 FIN exome

AF:

0.0000226

Gnomad4 NFE exome

AF:

0.0000734

Gnomad4 OTH exome

AF:

0.000222

GnomAD4 genome

AF:

0.0000417

AC:

AN:

119796

Hom.:

Cov.:

AF XY:

0.0000508

AC XY:

AN XY:

59028

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000771

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000225

Gnomad4 FIN

AF:

0.000113

Gnomad4 NFE

AF:

0.0000361

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000114

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.0000764

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

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 21, 2021

The c.665A>G (p.E222G) alteration is located in exon 5 (coding exon 5) of the APLP2 gene. This alteration results from a A to G substitution at nucleotide position 665, causing the glutamic acid (E) at amino acid position 222 to be replaced by a glycine (G). 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

0.094

BayesDel_addAF

Benign

-0.061

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.17

T;.;T;.;.

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.44

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.84

.;T;T;T;T

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.087

T;T;T;T;T

MetaSVM

Uncertain

-0.12

MutationAssessor

Benign

1.3

L;L;L;L;.

MutationTaster

Benign

1.0

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

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.2

.;N;N;N;N

REVEL

Benign

0.28

Sift

Benign

0.061

.;T;D;D;D

Sift4G

Uncertain

0.014

.;D;T;T;T

Polyphen

0.32

B;B;B;B;.

Vest4

0.32, 0.28, 0.26, 0.27

MVP

0.57

MPC

0.16

ClinPred

0.15

GERP RS

3.0

Varity_R

0.050

gMVP

0.11

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