Genetic Variant WNT2B:p.Pro4Gln (chr1-112509273-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024494.3(WNT2B):c.11C>A(p.Pro4Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000725 in 1,379,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. P4L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

WNT2B
NM_024494.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0870

Publications

0 publications found

Variant links:

Genes affected

WNT2B (HGNC:12781): (Wnt family member 2B) This gene encodes a member of the wingless-type MMTV integration site (WNT) family of highly conserved, secreted signaling factors. WNT family members function in a variety of developmental processes including regulation of cell growth and differentiation and are characterized by a WNT-core domain. This gene may play a role in human development as well as carcinogenesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

WNT2B Gene-Disease associations (from GenCC):

diarrhea 9
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia

WNT2B links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2636334).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNT2B	NM_024494.3 link	c.11C>A	p.Pro4Gln	missense_variant	Exon 1 of 5	ENST00000369684.5	NP_078613.1	Q93097-1
WNT2B	NM_004185.4 link	c.126-5601C>A		intron_variant	Intron 2 of 5		NP_004176.2	Q93097-2
WNT2B	NM_001291880.1 link	c.-94-5601C>A		intron_variant	Intron 1 of 4		NP_001278809.1	Q93097Q5TEH8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
WNT2B	ENST00000369684.5 link	c.11C>A	p.Pro4Gln	missense_variant	Exon 1 of 5	1	NM_024494.3	ENSP00000358698.4	Q93097-1
WNT2B	ENST00000369686.9 link	c.126-5601C>A		intron_variant	Intron 2 of 5	1		ENSP00000358700.4	Q93097-2
WNT2B	ENST00000256640.9 link	c.-94-5601C>A		intron_variant	Intron 1 of 4	2		ENSP00000256640.5	Q5TEH8

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.25e-7

AC:

AN:

1379818

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

681856

show subpopulations

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

African (AFR)

AF:

0.0000337

AC:

AN:

29674

American (AMR)

AF:

0.00

AC:

AN:

33888

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24310

East Asian (EAS)

AF:

0.00

AC:

AN:

34716

South Asian (SAS)

AF:

0.00

AC:

AN:

78864

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4030

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1076698

Other (OTH)

AF:

0.00

AC:

AN:

57296

⚠️ 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: 0.225

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

0.085

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.30

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.25

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.61

M_CAP

Pathogenic

0.55

MetaRNN

Benign

0.26

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.0

PhyloP100

-0.087

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.21

REVEL

Benign

0.17

Sift

Benign

0.10

Sift4G

Pathogenic

0.0

Polyphen

0.82

Vest4

0.31

MutPred

0.15

Gain of MoRF binding (P = 0.0522);

MVP

0.82

MPC

1.4

ClinPred

0.77

GERP RS

3.0

PromoterAI

0.014

Neutral

(source)

Varity_R

0.046

gMVP

0.53

Mutation Taster

=88/12

polymorphism

(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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1-112509273-C-A

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