chr20-45534505-C-G

Position:

chr20-45534505-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_080827.2(WFDC6):c.223G>C(p.Val75Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

WFDC6
NM_080827.2 missense, splice_region

Scores

Splicing: ADA: 0.002249

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.534

Variant links:

Genes affected

WFDC6 (HGNC:16164): (WAP four-disulfide core domain 6) This gene encodes a member of the WAP-type four-disulfide core (WFDC) domain family. The WFDC domain, or WAP signature motif, contains eight cysteines forming four disulfide bonds at the core of the protein, and functions as a protease inhibitor. Most WFDC gene members are localized to chromosome 20q12-q13 in two clusters: centromeric and telomeric. This gene belongs to the telomeric cluster. Read-through transcription exists between this gene and the upstream SPINLW1 (serine peptidase inhibitor-like, with Kunitz and WAP domains 1) gene. [provided by RefSeq, Nov 2010]

WFDC6 links:

EPPIN-WFDC6 (HGNC:38825): (EPPIN-WFDC6 readthrough) This locus represents naturally occurring read-through transcription between the neighboring SPINLW1 (serine peptidase inhibitor-like, with Kunitz and WAP domains 1) and WFDC6 (WAP four-disulfide core domain 6) genes. The read-through transcript encodes a fusion protein that shares sequence identity with the products of each individual gene. [provided by RefSeq, Nov 2010]

EPPIN-WFDC6 links:

LOC107987282 (HGNC:):

LOC107987282 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019843906).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WFDC6	NM_080827.2 link	c.223G>C	p.Val75Leu	missense_variant, splice_region_variant	3/3	ENST00000372670.8	NP_543017.1	Q9BQY6-2A0A0K0K1K0
LOC107987282	XR_001754641.3 link	n.152+1179C>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WFDC6	ENST00000372670.8 link	c.223G>C	p.Val75Leu	missense_variant, splice_region_variant	3/3	1	NM_080827.2	ENSP00000361755.3		Q9BQY6-2
EPPIN-WFDC6	ENST00000651288.1 link	c.523G>C	p.Val175Leu	missense_variant, splice_region_variant	5/5			ENSP00000498632.1		A0A494C0M2

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000521

AC:

AN:

249670

Hom.:

AF XY:

0.0000444

AC XY:

AN XY:

135092

show subpopulations

Gnomad AFR exome

AF:

0.000739

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461618

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727100

show subpopulations

Gnomad4 AFR exome

AF:

0.000568

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000118

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74414

show subpopulations

Gnomad4 AFR

AF:

0.000434

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000144

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 13, 2024

The c.223G>C (p.V75L) alteration is located in exon 3 (coding exon 3) of the WFDC6 gene. This alteration results from a G to C substitution at nucleotide position 223, causing the valine (V) at amino acid position 75 to be replaced by a leucine (L). 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

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.77

CADD

Benign

0.16

DANN

Benign

0.92

Eigen

Benign

-0.78

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.023

LIST_S2

Benign

0.30

M_CAP

Benign

0.00069

MetaRNN

Benign

0.020

MetaSVM

Benign

-1.0

PROVEAN

Benign

-0.92

REVEL

Benign

0.0090

Sift

Benign

0.31

Sift4G

Benign

0.51

Polyphen

0.078

Vest4

0.085

MVP

0.040

MPC

0.049

ClinPred

0.0082

GERP RS

-0.40

gMVP

0.16

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0022

dbscSNV1_RF

Benign

0.090

SpliceAI score (max)

0.38

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.38

Position offset: 0

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over