3-13819110-T-G

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PP2PP3_Strong

The NM_004625.4(WNT7A):c.884A>C(p.Asn295Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N295S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WNT7A
NM_004625.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.00

Publications

0 publications found

Variant links:

Genes affected

WNT7A (HGNC:12786): (Wnt family member 7A) This gene is a member of the WNT gene family, which consists of structurally related genes that encode secreted signaling proteins. These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate and patterning during embryogenesis. This gene is involved in the development of the anterior-posterior axis in the female reproductive tract, and also plays a critical role in uterine smooth muscle pattering and maintenance of adult uterine function. Mutations in this gene are associated with Fuhrmann and Al-Awadi/Raas-Rothschild/Schinzel phocomelia syndromes. [provided by RefSeq, Jul 2008]

WNT7A Gene-Disease associations (from GenCC):

Fuhrmann syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
phocomelia, Schinzel type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WNT7A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity WNT7A_HUMAN

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 6 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 1.3439 (below the threshold of 3.09). Trascript score misZ: 1.655 (below the threshold of 3.09). GenCC associations: The gene is linked to Fuhrmann syndrome, phocomelia, Schinzel type.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.953

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNT7A	NM_004625.4 link	c.884A>C	p.Asn295Thr	missense_variant	Exon 4 of 4	ENST00000285018.5	NP_004616.2	O00755
WNT7A	XM_011534091.3 link	c.683A>C	p.Asn228Thr	missense_variant	Exon 5 of 5		XP_011532393.1
WNT7A	XM_047448863.1 link	c.683A>C	p.Asn228Thr	missense_variant	Exon 4 of 4		XP_047304819.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WNT7A	ENST00000285018.5 link	c.884A>C	p.Asn295Thr	missense_variant	Exon 4 of 4	1	NM_004625.4	ENSP00000285018.4		O00755

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461818

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727216

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53376

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111996

Other (OTH)

AF:

0.00

AC:

AN:

60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Uncertain

0.089

BayesDel_noAF

Benign

-0.11

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.93

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

M_CAP

Pathogenic

0.47

MetaRNN

Pathogenic

0.95

MetaSVM

Uncertain

0.47

MutationAssessor

Pathogenic

3.0

PhyloP100

8.0

PrimateAI

Uncertain

0.73

PROVEAN

Pathogenic

-5.5

REVEL

Pathogenic

0.87

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0040

Polyphen

1.0

Vest4

0.79

MutPred

0.77

Gain of glycosylation at N295 (P = 0.0271);

MVP

0.96

MPC

1.7

ClinPred

1.0

GERP RS

4.2

Varity_R

0.89

gMVP

0.79

Mutation Taster

=40/60

disease causing

(source)

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

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3-13819110-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over