rs140454738

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_194248.3(OTOF):​c.446C>T​(p.Thr149Met) variant causes a missense change. The variant allele was found at a frequency of 0.000211 in 1,613,742 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. T149T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

1
7
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 6.39

Publications

7 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: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.15039575).
BP6
Variant 2-26516481-G-A is Benign according to our data. Variant chr2-26516481-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 48236.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOFNM_194248.3 linkc.446C>T p.Thr149Met missense_variant Exon 5 of 47 ENST00000272371.7 NP_919224.1 Q9HC10-1
OTOFNM_001287489.2 linkc.446C>T p.Thr149Met missense_variant Exon 5 of 46 NP_001274418.1 Q9HC10-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOFENST00000272371.7 linkc.446C>T p.Thr149Met missense_variant Exon 5 of 47 1 NM_194248.3 ENSP00000272371.2 Q9HC10-1
OTOFENST00000403946.7 linkc.446C>T p.Thr149Met missense_variant Exon 5 of 46 5 ENSP00000385255.3 Q9HC10-5

Frequencies

GnomAD3 genomes
AF:
0.000145
AC:
22
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00231
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000291
AC:
73
AN:
251278
AF XY:
0.000265
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000260
Gnomad ASJ exome
AF:
0.00347
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000193
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000218
AC:
318
AN:
1461618
Hom.:
0
Cov.:
33
AF XY:
0.000217
AC XY:
158
AN XY:
727136
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000335
AC:
15
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00283
AC:
74
AN:
26136
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39700
South Asian (SAS)
AF:
0.000255
AC:
22
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53166
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.000166
AC:
185
AN:
1111994
Other (OTH)
AF:
0.000315
AC:
19
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
20
39
59
78
98
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000145
AC:
22
AN:
152124
Hom.:
0
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74298
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41428
American (AMR)
AF:
0.000327
AC:
5
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00231
AC:
8
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68008
Other (OTH)
AF:
0.000479
AC:
1
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000433
Hom.:
0
Bravo
AF:
0.000196
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000231
AC:
28
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000415

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Aug 31, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 09, 2014
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 9 Uncertain:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
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 did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not specified Benign:1
Jan 25, 2018
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Thr149Met in exon 5A of OTOF: This variant is not expected to have clinical si gnificance because it has also been identified in 0.34% (35/10152) of Ashkenazi Jewish chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.bro adinstitute.org/; dbSNP rs140454738). It has also been identified in 1 individua l with Usher syndrome who was found to have an alternate genetic etiology for Us her syndrome. ACMG/AMP criteria applied: BS1; BP5; PP3. -

OTOF-related disorder Benign:1
May 21, 2020
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.22
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.076
T;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.15
T;T
MetaSVM
Uncertain
0.052
D
MutationAssessor
Benign
0.81
L;L
PhyloP100
6.4
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-1.8
N;N
REVEL
Uncertain
0.33
Sift
Benign
0.11
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.99
D;.
Vest4
0.70
MVP
0.95
MPC
0.67
ClinPred
0.11
T
GERP RS
5.5
Varity_R
0.077
gMVP
0.37
Mutation Taster
=76/24
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: rs140454738; hg19: chr2-26739349; COSMIC: COSV55511207; API