Genetic Variant NKD2:p.Ser117Leu (chr5-1034254-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_033120.4(NKD2):c.350C>T(p.Ser117Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,612,140 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

NKD2
NM_033120.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.42

Variant links:

Genes affected

NKD2 (HGNC:17046): (NKD inhibitor of WNT signaling pathway 2) This gene encodes a member of a family of proteins that function as negative regulators of Wnt receptor signaling through interaction with Dishevelled family members. The encoded protein participates in the delivery of transforming growth factor alpha-containing vesicles to the cell membrane. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Aug 2012]

NKD2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 rank	MANE	Protein	UniProt
NKD2	NM_033120.4 link	c.350C>T	p.Ser117Leu	missense_variant	Exon 6 of 10	ENST00000296849.10	NP_149111.1	Q969F2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NKD2	ENST00000296849.10 link	c.350C>T	p.Ser117Leu	missense_variant	Exon 6 of 10	1	NM_033120.4	ENSP00000296849.5	Q969F2-1
NKD2	ENST00000274150.4 link	c.350C>T	p.Ser117Leu	missense_variant	Exon 6 of 11	1		ENSP00000274150.4	Q969F2-2
NKD2	ENST00000519933.5 link	n.119C>T		non_coding_transcript_exon_variant	Exon 1 of 4	2

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000564

AC:

AN:

248314

Hom.:

AF XY:

0.0000594

AC XY:

AN XY:

134752

show subpopulations

Gnomad AFR exome

AF:

0.000126

Gnomad AMR exome

AF:

0.000175

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000659

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000268

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000370

AC:

AN:

1459822

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

726124

show subpopulations

Gnomad4 AFR exome

AF:

0.0000897

Gnomad4 AMR exome

AF:

0.000179

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000465

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000234

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152318

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000880

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000331

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.350C>T (p.S117L) alteration is located in exon 6 (coding exon 6) of the NKD2 gene. This alteration results from a C to T substitution at nucleotide position 350, causing the serine (S) at amino acid position 117 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

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

0.0084

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.67

D;.

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.036

MetaRNN

Uncertain

0.68

D;D

MetaSVM

Benign

-0.90

MutationAssessor

Pathogenic

3.1

M;M

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-6.0

D;D

REVEL

Benign

0.28

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.64

MVP

0.67

MPC

0.20

ClinPred

0.87

GERP RS

3.6

Varity_R

0.79

gMVP

0.83

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

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