9-114478722-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_015404.4(WHRN):c.668G>A(p.Arg223His) variant causes a missense change. The variant allele was found at a frequency of 0.00338 in 1,612,430 control chromosomes in the GnomAD database, including 66 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R223C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0024 ( 5 hom., cov: 32)

Exomes 𝑓: 0.0035 ( 61 hom. )

Consequence

WHRN
NM_015404.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: 4.67

Publications

14 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: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008132726).

BP6

Variant 9-114478722-C-T is Benign according to our data. Variant chr9-114478722-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 45681.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00237 (361/152266) while in subpopulation SAS AF = 0.0323 (156/4826). AF 95% confidence interval is 0.0282. There are 5 homozygotes in GnomAd4. There are 208 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WHRN	NM_015404.4 link	c.668G>A	p.Arg223His	missense_variant	Exon 2 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.668G>A	p.Arg223His	missense_variant	Exon 2 of 12	1	NM_015404.4	ENSP00000354623.3

Frequencies

GnomAD3 genomes

AF:

0.00234

AC:

356

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0183

Gnomad SAS

AF:

0.0321

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00112

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00628

AC:

1559

AN:

248324

AF XY:

0.00750

show subpopulations

Gnomad AFR exome

AF:

0.000248

Gnomad AMR exome

AF:

0.000464

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0246

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000940

Gnomad OTH exome

AF:

0.00280

GnomAD4 exome

AF:

0.00349

AC:

5096

AN:

1460164

Hom.:

Cov.:

AF XY:

0.00430

AC XY:

3122

AN XY:

726380

show subpopulations

African (AFR)

AF:

0.000329

AC:

AN:

33478

American (AMR)

AF:

0.000537

AC:

AN:

44678

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.0160

AC:

635

AN:

39698

South Asian (SAS)

AF:

0.0302

AC:

2601

AN:

86162

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51928

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00142

AC:

1574

AN:

1111944

Other (OTH)

AF:

0.00411

AC:

248

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

346

691

1037

1382

1728

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

192

288

384

480

<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:

0.00237

AC:

361

AN:

152266

Hom.:

Cov.:

AF XY:

0.00279

AC XY:

208

AN XY:

74446

show subpopulations

African (AFR)

AF:

0.000409

AC:

AN:

41560

American (AMR)

AF:

0.000588

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.0184

AC:

AN:

5168

South Asian (SAS)

AF:

0.0323

AC:

156

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00112

AC:

AN:

68004

Other (OTH)

AF:

0.00378

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00174

Hom.:

Bravo

AF:

0.00186

TwinsUK

AF:

0.00162

AC:

ALSPAC

AF:

0.00259

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00116

AC:

ExAC

AF:

0.00628

AC:

763

Asia WGS

AF:

0.0280

AC:

AN:

3478

EpiCase

AF:

0.00131

EpiControl

AF:

0.000653

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:3

Mar 03, 2021

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 05, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Arg223His in exon 2 of DFNB31: This variant is not expected to have clinical sig nificance because it has been identified in 3.3% (511/15606) of South Asian chro mosomes including 10 homozygotes by the Exome Aggregation Consortium (ExAC, http ://exac.broadinstitute.org; dbSNP rs146273185). -

Jan 16, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Jun 18, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jan 16, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 31

Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Usher syndrome type 2D

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.21

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.41

T;.

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.91

D;D

MetaRNN

Benign

0.0081

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

L;L

PhyloP100

4.7

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.5

D;D

REVEL

Benign

0.17

Sift

Benign

0.050

D;T

Sift4G

Uncertain

0.024

D;D

Polyphen

0.99

D;D

Vest4

0.39

MVP

0.55

MPC

1.5

ClinPred

0.052

GERP RS

5.5

PromoterAI

0.023

Neutral

(source)

Varity_R

0.33

gMVP

0.43

Mutation Taster

=39/61

disease causing

(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