chr4-183193637-A-G

Variant names:

• chr4-183193637-A-G
• rs774744067
• NM_024949.6:c.170A>G

Variant summary

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

The NM_024949.6(WWC2):​c.170A>G​(p.Asp57Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,686 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. D57A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: WWC2 NM_024949.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.32
• Publications: 0 publications found

Genes affected

WWC2 (HGNC:24148): (WW and C2 domain containing 2) This gene encodes a member of the WW-and-C2-domain-containing family of proteins. Members of this family have two N-terminal WW domains that mediate binding to target proteins harboring L/PPxY motifs, an internal C2 domain for membrane association, and C-terminal alpha protein kinase C binding sites and class III PDZ domain-interaction motifs. Proteins of this family are able to form homo- and heterodimers and to modulate hippo pathway signaling. [provided by RefSeq, Sep 2016]

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024949.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WWC2	NM_024949.6	MANE Select	c.170A>G	p.Asp57Gly	missense	Exon 2 of 23	NP_079225.5
	WWC2	NM_001410864.1		c.170A>G	p.Asp57Gly	missense	Exon 2 of 23	NP_001397793.1	Q6AWC2-6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WWC2	ENST00000403733.8	TSL:5 MANE Select	c.170A>G	p.Asp57Gly	missense	Exon 2 of 23	ENSP00000384222.3	Q6AWC2-1
	WWC2	ENST00000962606.1		c.170A>G	p.Asp57Gly	missense	Exon 2 of 23	ENSP00000632665.1
	WWC2	ENST00000448232.6	TSL:5	c.170A>G	p.Asp57Gly	missense	Exon 2 of 23	ENSP00000398577.2	Q6AWC2-6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000803 AC: 2 AN: 249190 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000111

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461686 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727116

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111868

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000827 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.51
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.068	T
Eigen	Uncertain	0.66
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.014	T
MetaRNN	Uncertain	0.73	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M
PhyloP100		9.3
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-4.3	D
REVEL	Benign	0.27
Sift	Uncertain	0.0070	D
Sift4G	Uncertain	0.015	D
Polyphen		0.95	P
Vest4		0.86
MutPred		0.39		Gain of catalytic residue at C54 (P = 0.1194)
MVP		0.57
MPC		0.092
ClinPred		0.88	D
GERP RS		5.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.48
gMVP		0.39
Mutation Taster		=41/59	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs774744067; hg19: chr4-184114790;