rs764853169

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006846.4(SPINK5):​c.341A>G​(p.Tyr114Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000428 in 1,611,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y114D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

SPINK5
NM_006846.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0100

Publications

3 publications found
Variant links:
Genes affected
SPINK5 (HGNC:15464): (serine peptidase inhibitor Kazal type 5) This gene encodes a multidomain serine protease inhibitor that contains 15 potential inhibitory domains. The encoded preproprotein is proteolytically processed to generate multiple protein products, which may exhibit unique activities and specificities. These proteins may play a role in skin and hair morphogenesis, as well as anti-inflammatory and antimicrobial protection of mucous epithelia. Mutations in this gene may result in Netherton syndrome, a disorder characterized by ichthyosis, defective cornification, and atopy. This gene is present in a gene cluster on chromosome 5. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]
SPINK5 Gene-Disease associations (from GenCC):
  • Netherton syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11553976).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPINK5NM_006846.4 linkc.341A>G p.Tyr114Cys missense_variant Exon 5 of 33 ENST00000256084.8 NP_006837.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPINK5ENST00000256084.8 linkc.341A>G p.Tyr114Cys missense_variant Exon 5 of 33 1 NM_006846.4 ENSP00000256084.7

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151850
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000295
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000281
AC:
7
AN:
248946
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.0000648
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000531
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000445
AC:
65
AN:
1460050
Hom.:
0
Cov.:
30
AF XY:
0.0000441
AC XY:
32
AN XY:
726348
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33334
American (AMR)
AF:
0.00
AC:
0
AN:
44616
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26070
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86212
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53256
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5750
European-Non Finnish (NFE)
AF:
0.0000567
AC:
63
AN:
1110920
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60264
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
151850
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74158
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41380
American (AMR)
AF:
0.00
AC:
0
AN:
15218
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5134
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000295
AC:
2
AN:
67882
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000331
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Ichthyosis linearis circumflexa Uncertain:1
Dec 11, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 114 of the SPINK5 protein (p.Tyr114Cys). This variant is present in population databases (rs764853169, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with SPINK5-related conditions. ClinVar contains an entry for this variant (Variation ID: 529156). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
16
DANN
Benign
0.89
DEOGEN2
Benign
0.091
.;.;.;T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.038
N
LIST_S2
Benign
0.53
T;T;T;T
M_CAP
Benign
0.059
D
MetaRNN
Benign
0.12
T;T;T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
0.97
L;L;.;L
PhyloP100
-0.010
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.53
N;N;N;N
REVEL
Uncertain
0.32
Sift
Benign
0.17
T;T;T;T
Sift4G
Benign
0.17
T;T;T;T
Polyphen
0.62
P;B;.;B
Vest4
0.19
MutPred
0.52
Gain of disorder (P = 0.0365);Gain of disorder (P = 0.0365);.;Gain of disorder (P = 0.0365);
MVP
0.26
MPC
0.22
ClinPred
0.068
T
GERP RS
-2.7
Varity_R
0.035
gMVP
0.30
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs764853169; hg19: chr5-147466026; API