3-57269575-C-G

Variant summary

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

The NM_012096.3(APPL1):c.2018C>G(p.Ser673Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000905 in 1,613,982 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00074 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00092 ( 2 hom. )

Consequence

APPL1
NM_012096.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.50

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 Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.11016062).

BS2

High AC in GnomAd at 112 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
APPL1	NM_012096.3 linkuse as main transcript	c.2018C>G	p.Ser673Cys	missense_variant	22/22	ENST00000288266.8
ASB14	NM_001142733.3 linkuse as main transcript	c.*66G>C		3_prime_UTR_variant	11/11	ENST00000487349.6
LOC105377102	NR_135535.1 linkuse as main transcript	n.10C>G		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.2018C>G	p.Ser673Cys	missense_variant	22/22	1	NM_012096.3	P1
ASB14	ENST00000487349.6 linkuse as main transcript	c.*66G>C		3_prime_UTR_variant	11/11	1	NM_001142733.3	P1	A6NK59-3
APPL1	ENST00000650354.1 linkuse as main transcript	c.2018C>G	p.Ser673Cys	missense_variant, NMD_transcript_variant	22/24

Frequencies

GnomAD3 genomes

AF:

0.000736

AC:

112

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00126

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.000605

AC:

152

AN:

251212

Hom.:

AF XY:

0.000626

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.00113

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000923

AC:

1349

AN:

1461718

Hom.:

Cov.:

AF XY:

0.000913

AC XY:

664

AN XY:

727128

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000268

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000220

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00113

Gnomad4 OTH exome

AF:

0.000811

GnomAD4 genome

AF:

0.000736

AC:

112

AN:

152264

Hom.:

Cov.:

AF XY:

0.000618

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.000289

Gnomad4 AMR

AF:

0.000719

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00126

Gnomad4 OTH

AF:

0.000948

Alfa

AF:

0.00109

Hom.:

Bravo

AF:

0.000710

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00198

AC:

ExAC

AF:

0.000618

AC:

EpiCase

AF:

0.00175

EpiControl

AF:

0.00172

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

Genetic Services Laboratory, University of Chicago

Mar 18, 2019

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 22, 2024

This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 673 of the APPL1 protein (p.Ser673Cys). This variant is present in population databases (rs138485817, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with APPL1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1336471). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.32

Cadd

Uncertain

Dann

Benign

0.97

DEOGEN2

Benign

0.054

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.030

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.60

REVEL

Benign

0.19

Sift

Uncertain

0.0040

Sift4G

Benign

0.066

Polyphen

1.0

Vest4

0.58

MVP

0.80

MPC

0.72

ClinPred

0.082

GERP RS

5.7

Varity_R

0.21

gMVP

0.46

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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