Genetic Variant WAC:p.Arg550Gly (chr10-28616264-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_016628.5(WAC):c.1648C>G(p.Arg550Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,690 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R550Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WAC
NM_016628.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.25

Publications

0 publications found

Variant links:

Genes affected

WAC (HGNC:17327): (WW domain containing adaptor with coiled-coil) The protein encoded by this gene contains a WW domain, which is a protein module found in a wide range of signaling proteins. This domain mediates protein-protein interactions and binds proteins containing short linear peptide motifs that are proline-rich or contain at least one proline. This gene product shares 94% sequence identity with the WAC protein in mouse, however, its exact function is not known. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2008]

WAC Gene-Disease associations (from GenCC):

DeSanto-Shinawi syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
DeSanto-Shinawi syndrome due to WAC point mutation
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Illumina

WAC links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WAC	NM_016628.5 link	c.1648C>G	p.Arg550Gly	missense_variant	Exon 12 of 14	ENST00000354911.9	NP_057712.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WAC	ENST00000354911.9 link	c.1648C>G	p.Arg550Gly	missense_variant	Exon 12 of 14	1	NM_016628.5	ENSP00000346986.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461690

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727168

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44688

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111896

Other (OTH)

AF:

0.00

AC:

AN:

60382

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

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Uncertain

-0.010

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.025

.;T;.;T

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

D;D;D;D

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.52

D;D;D;D

MetaSVM

Benign

-0.81

MutationAssessor

Benign

2.0

.;.;.;M

PhyloP100

4.3

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.0

N;N;N;N

REVEL

Benign

0.16

Sift

Uncertain

0.0080

D;D;T;.

Sift4G

Benign

0.31

T;T;T;T

Polyphen

0.62

P;.;D;P

Vest4

0.81

MutPred

0.24

.;.;.;Gain of relative solvent accessibility (P = 0.0166);

MVP

0.19

MPC

1.3

ClinPred

0.86

GERP RS

4.4

Varity_R

0.73

gMVP

0.49

Mutation Taster

=76/24

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over