chr2-26464041-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_194248.3(OTOF):c.5026C>T(p.Arg1676Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000835 in 1,613,656 control chromosomes in the GnomAD database, including 22 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00086 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00083 ( 18 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.03

Variant links:

Genes affected

OTOF (HGNC:8515): (otoferlin) Mutations in this gene are a cause of neurosensory nonsyndromic recessive deafness, DFNB9. The short form of the encoded protein has 3 C2 domains, a single carboxy-terminal transmembrane domain found also in the C. elegans spermatogenesis factor FER-1 and human dysferlin, while the long form has 6 C2 domains. The homology suggests that this protein may be involved in vesicle membrane fusion. Several transcript variants encoding multiple isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

OTOF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008848131).

BP6

Variant 2-26464041-G-A is Benign according to our data. Variant chr2-26464041-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 178504.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-26464041-G-A is described in Lovd as [Likely_pathogenic]. Variant chr2-26464041-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00086 (131/152282) while in subpopulation EAS AF= 0.0195 (101/5168). AF 95% confidence interval is 0.0165. There are 4 homozygotes in gnomad4. There are 79 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OTOF	NM_194248.3 link	c.5026C>T	p.Arg1676Cys	missense_variant	Exon 40 of 47	ENST00000272371.7	NP_919224.1	Q9HC10-1
OTOF	NM_194323.3 link	c.2725C>T	p.Arg909Cys	missense_variant	Exon 23 of 29	ENST00000339598.8	NP_919304.1	Q9HC10-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OTOF	ENST00000272371.7 link	c.5026C>T	p.Arg1676Cys	missense_variant	Exon 40 of 47	1	NM_194248.3	ENSP00000272371.2		Q9HC10-1
OTOF	ENST00000339598.8 link	c.2725C>T	p.Arg909Cys	missense_variant	Exon 23 of 29	1	NM_194323.3	ENSP00000344521.3		Q9HC10-2

Frequencies

GnomAD3 genomes

AF:

0.000867

AC:

132

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0195

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00144

AC:

362

AN:

250878

Hom.:

AF XY:

0.00137

AC XY:

186

AN XY:

135746

show subpopulations

Gnomad AFR exome

AF:

0.000618

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0181

Gnomad SAS exome

AF:

0.000392

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000815

GnomAD4 exome

AF:

0.000832

AC:

1216

AN:

1461374

Hom.:

Cov.:

AF XY:

0.000799

AC XY:

581

AN XY:

727004

show subpopulations

Gnomad4 AFR exome

AF:

0.000687

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0272

Gnomad4 SAS exome

AF:

0.000441

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000288

Gnomad4 OTH exome

AF:

0.000729

GnomAD4 genome

AF:

0.000860

AC:

131

AN:

152282

Hom.:

Cov.:

AF XY:

0.00106

AC XY:

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.000553

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0195

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000715

Hom.:

Bravo

AF:

0.000979

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00134

AC:

163

Asia WGS

AF:

0.00549

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 9

Benign:2

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). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Apr 29, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Dec 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 14, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 21935370, 22575033, 24053799, 28335750, 22906306, 26346818, 30245029, 33095980) -

not specified

Benign:1

Aug 11, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Arg1676Cys in exon 40 of OTOF: This variant has been reported in two individuals with hearing loss (Isawa 2013, Wang 2011) but it is not expected to have clinic al significance because it has been seen in 1.6% (9/572) of Asian chromosomes by the 1000 Genomes Project (dbSNP rs139767460), with the frequency in Japanese ch romosomes in particular being 3.4% (6/178). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.48

.;.;.;T;.;.

Eigen

Benign

0.14

Eigen_PC

Benign

0.066

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.31

T;T;T;T;T;T

MetaRNN

Benign

0.0088

T;T;T;T;T;T

MetaSVM

Benign

-0.68

MutationAssessor

Uncertain

2.4

.;.;.;M;M;.

PrimateAI

Uncertain

0.55

PROVEAN

Pathogenic

-5.8

D;D;.;D;D;.

REVEL

Uncertain

0.33

Sift

Uncertain

0.0090

D;D;.;D;D;.

Sift4G

Uncertain

0.026

D;D;.;D;D;.

Polyphen

0.97

D;D;.;D;.;D

Vest4

0.47

MVP

0.74

MPC

0.55

ClinPred

0.061

GERP RS

3.5

Varity_R

0.21

gMVP

0.68

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