rs148918820

Positions:

chr4-125449088-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_001291303.3(FAT4):c.8078C>T(p.Ser2693Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000639 in 1,613,816 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 0.00025 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00068 ( 0 hom. )

Consequence

FAT4
NM_001291303.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 3.98

Variant links:

Genes affected

FAT4 (HGNC:23109): (FAT atypical cadherin 4) The protein encoded by this gene is a member of the protocadherin family. This gene may play a role in regulating planar cell polarity (PCP). Studies in mice suggest that loss of PCP signaling may cause cystic kidney disease, and mutations in this gene have been associated with Van Maldergem Syndrome 2. Alternatively spliced transcript variants have been noted for this gene. [provided by RefSeq, Mar 2014]

FAT4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20259643).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00025 (38/152110) while in subpopulation NFE AF= 0.000456 (31/68000). AF 95% confidence interval is 0.00033. There are 0 homozygotes in gnomad4. There are 15 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FAT4	NM_001291303.3 linkuse as main transcript	c.8078C>T	p.Ser2693Leu	missense_variant	10/18	ENST00000394329.9	NP_001278232.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FAT4	ENST00000394329.9 linkuse as main transcript	c.8078C>T	p.Ser2693Leu	missense_variant	10/18	5	NM_001291303.3	ENSP00000377862	P1
FAT4	ENST00000335110.5 linkuse as main transcript	c.2966C>T	p.Ser989Leu	missense_variant	9/15	1		ENSP00000335169		Q6V0I7-2
FAT4	ENST00000674496.2 linkuse as main transcript	c.2849C>T	p.Ser950Leu	missense_variant	9/17			ENSP00000501473

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

151992

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000456

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000168

AC:

AN:

250442

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135676

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000371

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000679

AC:

993

AN:

1461706

Hom.:

Cov.:

AF XY:

0.000627

AC XY:

456

AN XY:

727148

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000870

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000250

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0000964

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000456

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000425

Hom.:

Bravo

AF:

0.000317

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000189

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000491

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:4

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Aug 16, 2022	This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 2691 of the FAT4 protein (p.Ser2691Leu). This variant is present in population databases (rs148918820, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with FAT4-related conditions. ClinVar contains an entry for this variant (Variation ID: 429367). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt FAT4 protein function. 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. -
Uncertain significance, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Mar 21, 2023	In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Dec 09, 2016

- -

FAT4-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 15, 2024

The FAT4 c.8078C>T variant is predicted to result in the amino acid substitution p.Ser2693Leu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.035% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

T;.

Eigen

Benign

-0.051

Eigen_PC

Benign

-0.030

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.83

T;D

M_CAP

Benign

0.050

MetaRNN

Benign

0.20

T;T

MetaSVM

Benign

-0.48

MutationAssessor

Benign

0.47

N;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-3.1

D;D

REVEL

Benign

0.14

Sift

Benign

0.072

T;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

0.84

P;P

Vest4

0.17

MVP

0.10

MPC

0.38

ClinPred

0.14

GERP RS

5.1

Varity_R

0.13

gMVP

0.57

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