3-57269629-G-A

Position:

chr3-57269629-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_012096.3(APPL1):c.2072G>A(p.Ser691Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000266 in 1,614,112 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 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

APPL1
NM_012096.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.33

Variant links:

Genes affected

APPL1 (HGNC:24035): (adaptor protein, phosphotyrosine interacting with PH domain and leucine zipper 1) The protein encoded by this gene has been shown to be involved in the regulation of cell proliferation, and in the crosstalk between the adiponectin signalling and insulin signalling pathways. The encoded protein binds many other proteins, including RAB5A, DCC, AKT2, PIK3CA, adiponectin receptors, and proteins of the NuRD/MeCP1 complex. This protein is found associated with endosomal membranes, but can be released by EGF and translocated to the nucleus. [provided by RefSeq, Jul 2008]

APPL1 links:

ASB14 (HGNC:19766): (ankyrin repeat and SOCS box containing 14) The protein encoded by this gene is a member of the ankyrin repeat and SOCS box-containing (ASB) family of proteins. They contain ankyrin repeat sequence and a SOCS box domain. The SOCS box serves to couple suppressor of cytokine signalling (SOCS) proteins and their binding partners with the elongin B and C complex, possibly targeting them for degradation. Alternative splicing results in multiple transcript variants encoding different isoforms.[provided by RefSeq, Dec 2008]

ASB14 links:

LOC105377102 (HGNC:):

LOC105377102 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.036688983).

BS2

High AC in GnomAd4 at 24 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
APPL1	NM_012096.3 linkuse as main transcript	c.2072G>A	p.Ser691Asn	missense_variant	22/22	ENST00000288266.8
ASB14	NM_001142733.3 linkuse as main transcript	c.*23-11C>T		splice_polypyrimidine_tract_variant, intron_variant		ENST00000487349.6
LOC105377102	NR_135535.1 linkuse as main transcript	n.64G>A		non_coding_transcript_exon_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APPL1	ENST00000288266.8 linkuse as main transcript	c.2072G>A	p.Ser691Asn	missense_variant	22/22	1	NM_012096.3	P1
ASB14	ENST00000487349.6 linkuse as main transcript	c.*23-11C>T		splice_polypyrimidine_tract_variant, intron_variant		1	NM_001142733.3	P1	A6NK59-3
APPL1	ENST00000650354.1 linkuse as main transcript	c.2072G>A	p.Ser691Asn	missense_variant, NMD_transcript_variant	22/24

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

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

GnomAD3 exomes

AF:

0.0000398

AC:

AN:

251354

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135848

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1461790

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

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:

0.00

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000158

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000529

Gnomad4 AMR

AF:

0.0000653

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

Alfa

AF:

0.000164

Hom.:

Bravo

AF:

0.000147

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 24, 2022

The c.2072G>A (p.S691N) alteration is located in exon 22 (coding exon 22) of the APPL1 gene. This alteration results from a G to A substitution at nucleotide position 2072, causing the serine (S) at amino acid position 691 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 21, 2021

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with APPL1-related conditions. This variant is present in population databases (rs201646423, ExAC 0.06%). This sequence change replaces serine with asparagine at codon 691 of the APPL1 protein (p.Ser691Asn). The serine residue is highly conserved and there is a small physicochemical difference between serine and asparagine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.57

CADD

Uncertain

DANN

Benign

0.95

DEOGEN2

Benign

0.039

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.064

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.81

M_CAP

Benign

0.016

MetaRNN

Benign

0.037

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.45

REVEL

Benign

0.067

Sift

Benign

0.034

Sift4G

Uncertain

0.057

Polyphen

0.046

Vest4

0.18

MVP

0.65

MPC

0.32

ClinPred

0.054

GERP RS

4.0

Varity_R

0.15

gMVP

0.16

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