rs181639116

Variant names:

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_006846.4(SPINK5):c.2243A>G(p.Glu748Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00404 in 1,613,870 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0030 ( 1 hom., cov: 33)

Exomes 𝑓: 0.0041 ( 13 hom. )

Consequence

SPINK5
NM_006846.4 missense, splice_region

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:7

Conservation

PhyloP100: 1.52

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 links:

FBXO38-DT (HGNC:55589): (FBXO38 divergent transcript)

FBXO38-DT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006309241).

BP6

Variant 5-148118988-A-G is Benign according to our data. Variant chr5-148118988-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 449103.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Benign=1, Uncertain_significance=2}. Variant chr5-148118988-A-G is described in Lovd as [Likely_benign].

BS2

High Homozygotes in GnomAdExome4 at 13 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPINK5	NM_006846.4 link	c.2243A>G	p.Glu748Gly	missense_variant, splice_region_variant	Exon 24 of 33	ENST00000256084.8	NP_006837.2	Q9NQ38-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPINK5	ENST00000256084.8 link	c.2243A>G	p.Glu748Gly	missense_variant, splice_region_variant	Exon 24 of 33	1	NM_006846.4	ENSP00000256084.7		Q9NQ38-1

Frequencies

GnomAD3 genomes

AF:

0.00298

AC:

453

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00101

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00498

Gnomad ASJ

AF:

0.000864

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00245

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00438

Gnomad OTH

AF:

0.00382

GnomAD3 exomes

AF:

0.00292

AC:

727

AN:

249324

Hom.:

AF XY:

0.00273

AC XY:

369

AN XY:

135250

show subpopulations

Gnomad AFR exome

AF:

0.00110

Gnomad AMR exome

AF:

0.00351

Gnomad ASJ exome

AF:

0.00119

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00264

Gnomad NFE exome

AF:

0.00448

Gnomad OTH exome

AF:

0.00231

GnomAD4 exome

AF:

0.00415

AC:

6065

AN:

1461550

Hom.:

Cov.:

AF XY:

0.00397

AC XY:

2888

AN XY:

727102

show subpopulations

Gnomad4 AFR exome

AF:

0.000597

Gnomad4 AMR exome

AF:

0.00347

Gnomad4 ASJ exome

AF:

0.000880

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00335

Gnomad4 NFE exome

AF:

0.00493

Gnomad4 OTH exome

AF:

0.00349

GnomAD4 genome

AF:

0.00297

AC:

453

AN:

152320

Hom.:

Cov.:

AF XY:

0.00290

AC XY:

216

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00101

Gnomad4 AMR

AF:

0.00497

Gnomad4 ASJ

AF:

0.000864

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00245

Gnomad4 NFE

AF:

0.00438

Gnomad4 OTH

AF:

0.00378

Alfa

AF:

0.00379

Hom.:

Bravo

AF:

0.00295

TwinsUK

AF:

0.00566

AC:

ALSPAC

AF:

0.00545

AC:

ESP6500AA

AF:

0.00135

AC:

ESP6500EA

AF:

0.00524

AC:

ExAC

AF:

0.00314

AC:

379

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00371

EpiControl

AF:

0.00439

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Netherton syndrome

Uncertain:1Benign:4

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Oct 09, 2014

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Mar 30, 2021

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

SPINK5 NM_006846.3 exon 24 p.Glu748Gly (c.2243A>G): This variant has not been reported in the literature but is present in 0.3% (123/35358) of Latino alleles, including 1 homozygote in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/5-147498551-A-G). This variant is present in ClinVar (Variation ID:449103). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Jul 27, 2016

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1Benign:2

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

FBXO38-DT: BS2; SPINK5: BP4, BS2 -

Aug 29, 2017

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The E748G variant has been observed as heterozygous with no other SPINK5 variants in a single patient; the patient was published in a meeting abstract (Kumar, et al., 2009). The variant is observed in 304/66700 (0.456%) alleles from individuals of European background in the ExAC dataset, including two homozygotes (Lek et al., 2016). E748G is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. However, this substitution occurs at a position that is not conserved. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. In summary, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Susceptibility to nonsyndromic otitis media

Uncertain:1

Apr 18, 2020

Santos-Cortez Lab, University of Colorado School of Medicine

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: research

- -

Ichthyosis linearis circumflexa

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.49

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.049

.;.;.;T

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.55

T;T;T;T

M_CAP

Benign

0.0052

MetaRNN

Benign

0.0063

T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Uncertain

2.3

M;M;.;M

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.9

N;N;N;N

REVEL

Benign

0.039

Sift

Uncertain

0.018

D;D;D;D

Sift4G

Uncertain

0.023

D;T;D;D

Polyphen

0.31

B;P;.;P

Vest4

0.22

MVP

0.38

MPC

0.23

ClinPred

0.019

GERP RS

2.5

Varity_R

0.085

gMVP

0.27

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