rs149236286

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_194248.3(OTOF):​c.4332C>T​(p.Thr1444Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.019 in 1,613,904 control chromosomes in the GnomAD database, including 371 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T1444T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.015 ( 18 hom., cov: 32)
Exomes 𝑓: 0.019 ( 353 hom. )

Consequence

OTOF
NM_194248.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -4.61

Publications

3 publications found
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 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 9
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 2-26467129-G-A is Benign according to our data. Variant chr2-26467129-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 48233.
BP7
Synonymous conserved (PhyloP=-4.61 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0146 (2221/152206) while in subpopulation NFE AF = 0.0195 (1329/68010). AF 95% confidence interval is 0.0187. There are 18 homozygotes in GnomAd4. There are 1014 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 18 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOFNM_194248.3 linkc.4332C>T p.Thr1444Thr synonymous_variant Exon 35 of 47 ENST00000272371.7 NP_919224.1 Q9HC10-1
OTOFNM_194323.3 linkc.2031C>T p.Thr677Thr synonymous_variant Exon 18 of 29 ENST00000339598.8 NP_919304.1 Q9HC10-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOFENST00000272371.7 linkc.4332C>T p.Thr1444Thr synonymous_variant Exon 35 of 47 1 NM_194248.3 ENSP00000272371.2 Q9HC10-1
OTOFENST00000339598.8 linkc.2031C>T p.Thr677Thr synonymous_variant Exon 18 of 29 1 NM_194323.3 ENSP00000344521.3 Q9HC10-2

Frequencies

GnomAD3 genomes
AF:
0.0146
AC:
2219
AN:
152088
Hom.:
18
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00886
Gnomad AMI
AF:
0.0132
Gnomad AMR
AF:
0.0125
Gnomad ASJ
AF:
0.0199
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00187
Gnomad FIN
AF:
0.0199
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0196
Gnomad OTH
AF:
0.0120
GnomAD2 exomes
AF:
0.0144
AC:
3622
AN:
251204
AF XY:
0.0146
show subpopulations
Gnomad AFR exome
AF:
0.00911
Gnomad AMR exome
AF:
0.00740
Gnomad ASJ exome
AF:
0.0190
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.0221
Gnomad NFE exome
AF:
0.0208
Gnomad OTH exome
AF:
0.0156
GnomAD4 exome
AF:
0.0195
AC:
28459
AN:
1461698
Hom.:
353
Cov.:
35
AF XY:
0.0189
AC XY:
13757
AN XY:
727170
show subpopulations
African (AFR)
AF:
0.00830
AC:
278
AN:
33480
American (AMR)
AF:
0.00794
AC:
355
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0179
AC:
467
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00322
AC:
278
AN:
86254
European-Finnish (FIN)
AF:
0.0227
AC:
1207
AN:
53268
Middle Eastern (MID)
AF:
0.0106
AC:
61
AN:
5768
European-Non Finnish (NFE)
AF:
0.0223
AC:
24800
AN:
1111978
Other (OTH)
AF:
0.0168
AC:
1012
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
1613
3226
4840
6453
8066
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
938
1876
2814
3752
4690
<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:
0.0146
AC:
2221
AN:
152206
Hom.:
18
Cov.:
32
AF XY:
0.0136
AC XY:
1014
AN XY:
74398
show subpopulations
African (AFR)
AF:
0.00891
AC:
370
AN:
41528
American (AMR)
AF:
0.0125
AC:
191
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.0199
AC:
69
AN:
3470
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5166
South Asian (SAS)
AF:
0.00187
AC:
9
AN:
4816
European-Finnish (FIN)
AF:
0.0199
AC:
211
AN:
10610
Middle Eastern (MID)
AF:
0.0136
AC:
4
AN:
294
European-Non Finnish (NFE)
AF:
0.0195
AC:
1329
AN:
68010
Other (OTH)
AF:
0.0119
AC:
25
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
103
206
309
412
515
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.0146
Hom.:
9
Bravo
AF:
0.0141
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.0220
EpiControl
AF:
0.0212

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:4
Jul 16, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 19461658, 18381613) -

Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 06, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 31, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 9 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. -

not specified Benign:1
Oct 18, 2010
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Thr1444Thr in exon 35 of OTOF: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located near a splice junction, is reported as benign in one publication (Rodriguez-Ballestero s 2008) and has been identified in 5/211 (2.4%) probands tested by our laborator y (at least 2 have Usher syndrome). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.0030
DANN
Benign
0.69
PhyloP100
-4.6
Mutation Taster
=96/4
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: rs149236286; hg19: chr2-26689997; COSMIC: COSV55515962; COSMIC: COSV55515962; API