5-168409993-A-C

Position:

• chr5-168409993-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_015238.3(WWC1):​c.939A>C​(p.Arg313Ser) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: WWC1 NM_015238.3 missense, splice_region
• Scores: Splicing: ADA: 0.01741
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.15

Genes affected

WWC1 (HGNC:29435): (WW and C2 domain containing 1) The protein encoded by this gene is a cytoplasmic phosphoprotein that interacts with PRKC-zeta and dynein light chain-1. Alleles of this gene have been found that enhance memory in some individuals. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2010]

WWC1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WWC1	NM_015238.3	c.939A>C	p.Arg313Ser	missense_variant, splice_region_variant	8/23	ENST00000265293.9	NP_056053.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WWC1	ENST00000265293.9	c.939A>C	p.Arg313Ser	missense_variant, splice_region_variant	8/23	1	NM_015238.3	ENSP00000265293.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 11, 2024

The c.939A>C (p.R313S) alteration is located in exon 8 (coding exon 8) of the WWC1 gene. This alteration results from a A to C substitution at nucleotide position 939, causing the arginine (R) at amino acid position 313 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Uncertain	0.039	T
BayesDel_noAF	Benign	-0.18
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	T;.
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.93	D;D
M_CAP	Benign	0.019	T
MetaRNN	Uncertain	0.60	D;D
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.3	M;M
PrimateAI	Uncertain	0.72	T
PROVEAN	Uncertain	-3.9	D;D
REVEL	Benign	0.19
Sift	Uncertain	0.0020	D;D
Sift4G	Uncertain	0.030	D;D
Polyphen		1.0	D;D
Vest4		0.74
MutPred		0.28		Loss of methylation at R313 (P = 0.015);Loss of methylation at R313 (P = 0.015);
MVP		0.27
MPC		0.69
ClinPred		0.98	D
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.72
gMVP		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.017
dbscSNV1_RF	Benign	0.18
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-167836998;