Genetic Variant FZD9:p.Ala18Val (chr7-73434060-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003508.3(FZD9):c.53C>T(p.Ala18Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 151,664 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 8.9e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

FZD9
NM_003508.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.51

Variant links:

Genes affected

FZD9 (HGNC:4047): (frizzled class receptor 9) Members of the 'frizzled' gene family encode 7-transmembrane domain proteins that are receptors for Wnt signaling proteins. The FZD9 gene is located within the Williams syndrome common deletion region of chromosome 7, and heterozygous deletion of the FZD9 gene may contribute to the Williams syndrome phenotype. FZD9 is expressed predominantly in brain, testis, eye, skeletal muscle, and kidney. [provided by RefSeq, Jul 2008]

FZD9 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13866127).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FZD9	NM_003508.3 link	c.53C>T	p.Ala18Val	missense_variant	Exon 1 of 1	ENST00000344575.5	NP_003499.1	O00144

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FZD9	ENST00000344575.5 link	c.53C>T	p.Ala18Val	missense_variant	Exon 1 of 1	6	NM_003508.3	ENSP00000345785.3		O00144

Frequencies

GnomAD3 genomes

AF:

0.0000198

AC:

AN:

151664

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

8.94e-7

AC:

AN:

1118118

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

532996

show subpopulations

Gnomad4 AFR exome

AF:

0.0000434

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:

0.00

GnomAD4 genome

AF:

0.0000198

AC:

AN:

151664

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74060

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 08, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.53C>T (p.A18V) alteration is located in exon 1 (coding exon 1) of the FZD9 gene. This alteration results from a C to T substitution at nucleotide position 53, causing the alanine (A) at amino acid position 18 to be replaced by a valine (V). 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

0.099

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.24

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.71

FATHMM_MKL

Benign

0.091

LIST_S2

Benign

0.42

M_CAP

Pathogenic

0.82

MetaRNN

Benign

0.14

MetaSVM

Benign

-0.89

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

0.41

REVEL

Benign

0.20

Sift

Benign

1.0

Sift4G

Benign

0.63

Polyphen

0.0020

Vest4

0.10

MutPred

0.37

Loss of MoRF binding (P = 0.2129);

MVP

0.16

ClinPred

0.14

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.0

Varity_R

0.070

gMVP

0.35

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