16-632679-C-T

Variant summary

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

The NM_053284.3(WFIKKN1):​c.269C>T​(p.Ala90Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000138 in 1,453,610 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

WFIKKN1
NM_053284.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.562
Variant links:
Genes affected
WFIKKN1 (HGNC:30912): (WAP, follistatin/kazal, immunoglobulin, kunitz and netrin domain containing 1) This gene encodes a secreted multidomain protein consisting of a signal peptide, a WAP domain, a follistatin domain, an immunoglobulin domain, two tandem Kunitz domains, and an NTR domain. These domains have been implicated frequently in inhibition of various types of proteases, suggesting that the encoded protein may be a multivalent protease inhibitor and may control the action of multiple types of serine proteases as well as metalloproteinases. [provided by RefSeq, Jul 2008]

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=0.054886997).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WFIKKN1NM_053284.3 linkuse as main transcriptc.269C>T p.Ala90Val missense_variant 2/2 ENST00000319070.3 NP_444514.1 Q96NZ8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
WFIKKN1ENST00000319070.3 linkuse as main transcriptc.269C>T p.Ala90Val missense_variant 2/21 NM_053284.3 ENSP00000324763.2 Q96NZ8
WFIKKN1ENST00000573440.1 linkuse as main transcriptn.3441C>T non_coding_transcript_exon_variant 1/16

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.0000212
AC:
5
AN:
236302
Hom.:
0
AF XY:
0.00000775
AC XY:
1
AN XY:
128982
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000173
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000190
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000138
AC:
20
AN:
1453610
Hom.:
0
Cov.:
32
AF XY:
0.00000554
AC XY:
4
AN XY:
722464
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000509
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34
Bravo
AF:
0.0000113
ExAC
AF:
0.0000250
AC:
3

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 submitterclinical testingAmbry GeneticsSep 22, 2023The c.269C>T (p.A90V) alteration is located in exon 2 (coding exon 2) of the WFIKKN1 gene. This alteration results from a C to T substitution at nucleotide position 269, causing the alanine (A) at amino acid position 90 to be replaced by a valine (V). 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
0.078
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
2.7
DANN
Uncertain
0.98
DEOGEN2
Benign
0.046
T
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.50
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.055
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.35
N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.035
Sift
Benign
0.25
T
Sift4G
Benign
0.18
T
Polyphen
0.0020
B
Vest4
0.080
MVP
0.43
MPC
0.11
ClinPred
0.036
T
GERP RS
2.1
Varity_R
0.035
gMVP
0.26

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs769947524; hg19: chr16-682679; API