16-632654-G-A

Variant summary

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

The NM_053284.3(WFIKKN1):​c.244G>A​(p.Gly82Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 1,601,190 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.00016 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

WFIKKN1
NM_053284.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.92
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=0.0061183274).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WFIKKN1NM_053284.3 linkuse as main transcriptc.244G>A p.Gly82Ser 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.244G>A p.Gly82Ser missense_variant 2/21 NM_053284.3 ENSP00000324763.2 Q96NZ8
WFIKKN1ENST00000573440.1 linkuse as main transcriptn.3416G>A non_coding_transcript_exon_variant 1/16

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152256
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00548
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000325
AC:
75
AN:
230996
Hom.:
1
AF XY:
0.000309
AC XY:
39
AN XY:
126212
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00634
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000126
Gnomad OTH exome
AF:
0.000353
GnomAD4 exome
AF:
0.000168
AC:
244
AN:
1448934
Hom.:
1
Cov.:
32
AF XY:
0.000179
AC XY:
129
AN XY:
719626
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00661
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000354
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000443
Gnomad4 OTH exome
AF:
0.000351
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152256
Hom.:
0
Cov.:
34
AF XY:
0.000188
AC XY:
14
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00548
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000516
Hom.:
1
Bravo
AF:
0.000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.000233
AC:
28

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 GeneticsOct 18, 2021The c.244G>A (p.G82S) alteration is located in exon 2 (coding exon 2) of the WFIKKN1 gene. This alteration results from a G to A substitution at nucleotide position 244, causing the glycine (G) at amino acid position 82 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
Benign
0.082
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.023
T
Eigen
Benign
-0.36
Eigen_PC
Benign
-0.59
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.49
T
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.0061
T
MetaSVM
Benign
-0.82
T
MutationAssessor
Benign
1.8
L
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.46
N
REVEL
Benign
0.17
Sift
Benign
0.52
T
Sift4G
Uncertain
0.045
D
Polyphen
1.0
D
Vest4
0.19
MVP
0.63
MPC
0.12
ClinPred
0.035
T
GERP RS
-0.020
Varity_R
0.030
gMVP
0.29

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.

Other links and lift over

dbSNP: rs149287908; hg19: chr16-682654; API