Genetic Variant WNT2B:p.Ala18Ala (chr1-112509316-C-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_024494.3(WNT2B):c.54C>T(p.Ala18Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000255 in 1,571,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A18A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

WNT2B
NM_024494.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.00

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: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.47).

BP7

Synonymous conserved (PhyloP=0 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNT2B	NM_024494.3 link	c.54C>T	p.Ala18Ala	synonymous_variant	Exon 1 of 5	ENST00000369684.5	NP_078613.1	Q93097-1
WNT2B	NM_004185.4 link	c.126-5558C>T		intron_variant	Intron 2 of 5		NP_004176.2	Q93097-2
WNT2B	NM_001291880.1 link	c.-94-5558C>T		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.54C>T	p.Ala18Ala	synonymous_variant	Exon 1 of 5	1	NM_024494.3	ENSP00000358698.4	Q93097-1
WNT2B	ENST00000369686.9 link	c.126-5558C>T		intron_variant	Intron 2 of 5	1		ENSP00000358700.4	Q93097-2
WNT2B	ENST00000256640.9 link	c.-94-5558C>T		intron_variant	Intron 1 of 4	2		ENSP00000256640.5	Q5TEH8

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000211

AC:

AN:

1419048

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

704270

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31282

American (AMR)

AF:

0.00

AC:

AN:

39426

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25266

East Asian (EAS)

AF:

0.00

AC:

AN:

37852

South Asian (SAS)

AF:

0.00

AC:

AN:

83006

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42150

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4104

European-Non Finnish (NFE)

AF:

0.00000273

AC:

AN:

1097106

Other (OTH)

AF:

0.00

AC:

AN:

58856

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74290

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41446

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5148

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67980

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.93

PhyloP100

0.0

PromoterAI

-0.011

Neutral

(source)

Mutation Taster

=100/0

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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chr1-112509316-C-T

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