Genetic Variant NKD2:p.Arg193Gly (chr5-1035391-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_033120.4(NKD2):c.577C>G(p.Arg193Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000128 in 1,556,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. 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. R193Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

NKD2
NM_033120.4 missense, splice_region

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.00100

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1587694).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NKD2	NM_033120.4 link	c.577C>G	p.Arg193Gly	missense_variant, splice_region_variant	Exon 8 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.577C>G	p.Arg193Gly	missense_variant, splice_region_variant	Exon 8 of 10	1	NM_033120.4	ENSP00000296849.5	Q969F2-1
NKD2	ENST00000274150.4 link	c.577C>G	p.Arg193Gly	missense_variant, splice_region_variant	Exon 8 of 11	1		ENSP00000274150.4	Q969F2-2
NKD2	ENST00000519933.5 link	n.346C>G		splice_region_variant, non_coding_transcript_exon_variant	Exon 3 of 4	2
NKD2	ENST00000523688.1 link	n.151C>G		splice_region_variant, non_coding_transcript_exon_variant	Exon 2 of 4	3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD4 exome

AF:

7.12e-7

AC:

AN:

1404494

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

693254

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.24e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Uncertain

0.068

BayesDel_noAF

Benign

-0.14

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.52

D;.

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.13

FATHMM_MKL

Benign

0.72

LIST_S2

Benign

0.60

T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-0.81

MutationAssessor

Uncertain

2.7

M;M

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.4

D;D

REVEL

Benign

0.26

Sift

Benign

0.12

T;T

Sift4G

Benign

0.36

T;T

Polyphen

0.021

B;P

Vest4

0.39

MutPred

0.12

Gain of helix (P = 0.027);Gain of helix (P = 0.027);

MVP

0.75

MPC

0.051

ClinPred

0.96

GERP RS

2.9

Varity_R

0.34

gMVP

0.42

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over