Genetic Variant WBP2:p.Pro207Pro (chr17-75847521-C-G) – 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_012478.4(WBP2):c.621G>C(p.Pro207Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000126 in 1,592,246 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. P207P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

WBP2
NM_012478.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -5.64

Publications

1 publications found

Variant links:

Genes affected

WBP2 (HGNC:12738): (WW domain binding protein 2) The globular WW domain is composed of 38 to 40 semiconserved amino acids shared by proteins of diverse functions including structural, regulatory, and signaling proteins. The domain is involved in mediating protein-protein interactions through the binding of polyproline ligands. This gene encodes a WW domain binding protein that is a transcriptional coactivator of estrogen receptor alpha and progesterone receptor. Defects in this gene have been associated with hearing impairment. [provided by RefSeq, Jan 2017]

WBP2 Gene-Disease associations (from GenCC):

hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, ClinGen
hearing loss, autosomal recessive 107
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

WBP2 links:

Genome browser will be placed here

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=-0.74).

BP7

Synonymous conserved (PhyloP=-5.64 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012478.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
WBP2	NM_012478.4	MANE Select	c.621G>C	p.Pro207Pro	synonymous	Exon 6 of 8	NP_036610.2
WBP2	NM_001348170.1		c.621G>C	p.Pro207Pro	synonymous	Exon 7 of 9	NP_001335099.1	Q969T9-1
WBP2	NM_001330499.2		c.486G>C	p.Pro162Pro	synonymous	Exon 5 of 7	NP_001317428.1	Q969T9-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
WBP2	ENST00000254806.8	TSL:1 MANE Select	c.621G>C	p.Pro207Pro	synonymous	Exon 6 of 8	ENSP00000254806.3	Q969T9-1
WBP2	ENST00000591399.5	TSL:5	c.621G>C	p.Pro207Pro	synonymous	Exon 7 of 9	ENSP00000467579.1	Q969T9-1
WBP2	ENST00000590221.5	TSL:3	c.609G>C	p.Pro203Pro	synonymous	Exon 6 of 8	ENSP00000466450.1	K7EMC9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

AF:

6.94e-7

AC:

AN:

1440118

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

714924

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32760

American (AMR)

AF:

0.00

AC:

AN:

41512

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24494

East Asian (EAS)

AF:

0.00

AC:

AN:

39528

South Asian (SAS)

AF:

0.00

AC:

AN:

83508

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52312

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5630

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1101002

Other (OTH)

AF:

0.0000168

AC:

AN:

59372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74302

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41428

American (AMR)

AF:

0.0000655

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

0.062

(source)

DANN

Benign

0.76

PhyloP100

-5.6

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over