9-114403248-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_015404.4(WHRN):c.2510G>A(p.Arg837His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000831 in 1,614,148 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts 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. R837C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00086 ( 1 hom. )

Consequence

WHRN
NM_015404.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 7.29

Publications

3 publications found

Variant links:

Genes affected

WHRN (HGNC:16361): (whirlin) This gene is thought to function in the organization and stabilization of sterocilia elongation and actin cystoskeletal assembly, based on studies of the related mouse gene. Mutations in this gene have been associated with autosomal recessive non-syndromic deafness and Usher Syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

WHRN Gene-Disease associations (from GenCC):

Usher syndrome type 2D
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
autosomal recessive nonsyndromic hearing loss 31
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
nonsyndromic genetic hearing loss
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Usher syndrome type 2
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WHRN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.25473064).

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000552 (84/152308) while in subpopulation NFE AF = 0.001 (68/68014). AF 95% confidence interval is 0.000808. There are 0 homozygotes in GnomAd4. There are 38 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WHRN	NM_015404.4 link	c.2510G>A	p.Arg837His	missense_variant	Exon 11 of 12	ENST00000362057.4	NP_056219.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WHRN	ENST00000362057.4 link	c.2510G>A	p.Arg837His	missense_variant	Exon 11 of 12	1	NM_015404.4	ENSP00000354623.3

Frequencies

GnomAD3 genomes

AF:

0.000552

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.000283

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00100

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000773

AC:

194

AN:

251086

AF XY:

0.000795

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000185

Gnomad NFE exome

AF:

0.00125

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.000861

AC:

1258

AN:

1461840

Hom.:

Cov.:

AF XY:

0.000888

AC XY:

646

AN XY:

727222

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33480

American (AMR)

AF:

0.000157

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00133

AC:

115

AN:

86258

European-Finnish (FIN)

AF:

0.000281

AC:

AN:

53372

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000954

AC:

1061

AN:

1112008

Other (OTH)

AF:

0.000828

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

159

238

318

397

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

114

152

190

<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:

0.000552

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.000510

AC XY:

AN XY:

74462

show subpopulations

African (AFR)

AF:

0.000216

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000386

AC:

AN:

5178

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.000283

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00100

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00118

Hom.:

Bravo

AF:

0.000385

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00209

AC:

ExAC

AF:

0.000947

AC:

115

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000600

EpiControl

AF:

0.000830

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Oct 04, 2016

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Oct 04, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 837 of the WHRN protein (p.Arg837His). This variant is present in population databases (rs55749855, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with WHRN-related conditions. ClinVar contains an entry for this variant (Variation ID: 228563). 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. -

not specified

Uncertain:1

Mar 05, 2019

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Arg837His variant in WHRN has been previously identified by our laboratory in 4 individuals with hearing loss; however, a second WHRN variant was not detected in any of these individuals. This variant has also been identified in 0.12% (151/128928) of European chromosomes by gnomAD (http://gnomad.broadinstitute.org). Computational prediction tools and conservation analysis suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, while the clinical significance of this variant is uncertain, its frequency suggests it is more likely to be benign. ACMG/AMP Criteria applied: PP3, BS1_Supporting. -

Optic atrophy

Uncertain:1

Jan 01, 2022

Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Usher syndrome type 2D;C1846839:Autosomal recessive nonsyndromic hearing loss 31

Uncertain:1

Mar 08, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.13

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.24

.;.;T

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.97

LIST_S2

Pathogenic

0.99

D;D;D

M_CAP

Benign

0.061

MetaRNN

Benign

0.25

T;T;T

MetaSVM

Benign

-0.87

MutationAssessor

Benign

1.9

.;.;L

PhyloP100

7.3

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-2.9

D;D;N

REVEL

Uncertain

0.37

Sift

Uncertain

0.0010

D;D;D

Sift4G

Uncertain

0.0040

D;D;D

Polyphen

1.0

.;D;D

Vest4

0.68

MVP

0.63

MPC

0.64

ClinPred

0.11

GERP RS

5.0

Varity_R

0.78

gMVP

0.44

Mutation Taster

=54/46

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over