NM_194248.3:c.2507G>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_194248.3(OTOF):​c.2507G>A​(p.Arg836His) variant causes a missense change. The variant allele was found at a frequency of 0.0000553 in 1,610,470 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. R836R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

5
10
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.87

Publications

0 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 -1 ACMG points.

BP6
Variant 2-26477188-C-T is Benign according to our data. Variant chr2-26477188-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 178510.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOFNM_194248.3 linkc.2507G>A p.Arg836His missense_variant Exon 21 of 47 ENST00000272371.7 NP_919224.1 Q9HC10-1
OTOFNM_194323.3 linkc.266G>A p.Arg89His missense_variant Exon 4 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.2507G>A p.Arg836His missense_variant Exon 21 of 47 1 NM_194248.3 ENSP00000272371.2 Q9HC10-1
OTOFENST00000339598.8 linkc.266G>A p.Arg89His missense_variant Exon 4 of 29 1 NM_194323.3 ENSP00000344521.3 Q9HC10-2

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000941
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000696
AC:
17
AN:
244158
AF XY:
0.0000676
show subpopulations
Gnomad AFR exome
AF:
0.000908
Gnomad AMR exome
AF:
0.0000584
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000908
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000295
AC:
43
AN:
1458288
Hom.:
0
Cov.:
33
AF XY:
0.0000290
AC XY:
21
AN XY:
725318
show subpopulations
African (AFR)
AF:
0.000896
AC:
30
AN:
33466
American (AMR)
AF:
0.0000448
AC:
2
AN:
44628
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26072
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39682
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
85898
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50974
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5696
European-Non Finnish (NFE)
AF:
0.00000810
AC:
9
AN:
1111568
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152182
Hom.:
0
Cov.:
32
AF XY:
0.000269
AC XY:
20
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.000941
AC:
39
AN:
41450
American (AMR)
AF:
0.000262
AC:
4
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
3
6
9
12
15
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:
0.000269
Hom.:
1
Bravo
AF:
0.000306
ESP6500AA
AF:
0.000229
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000116
AC:
14

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Sep 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 26, 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 -

not specified Uncertain:1
Oct 27, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Arg836His variant in OTOF has not been previously reported in individuals with hearing loss, but has been identified in 0.01% (1/8583) of European America n chromosomes and 0.02% (1/4367) of African American chromosomes by the NHLBI Ex ome Sequencing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs200670445). A lthough this variant has been seen in the general population, its frequency is n ot high enough to rule out a pathogenic role. The Arginine (Arg) at position 836 is highly conserved in mammals and evolutionary distant species, raising the po ssibility that a change at this position may not be tolerated. However, addition al computational prediction tools do not provide strong support for or against a n impact to the protein. In summary, the clinical significance of the p.Arg836Hi s variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Uncertain
0.042
T
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.51
.;.;.;D;.;.
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.89
D;D;D;D;D;D
M_CAP
Uncertain
0.14
D
MetaRNN
Uncertain
0.55
D;D;D;D;D;D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Uncertain
2.7
.;.;.;M;M;.
PhyloP100
5.9
PrimateAI
Pathogenic
0.85
D
PROVEAN
Uncertain
-3.9
D;D;.;D;D;.
REVEL
Pathogenic
0.81
Sift
Benign
0.069
T;T;.;T;T;.
Sift4G
Benign
0.064
T;T;.;T;T;.
Polyphen
0.92
P;D;.;D;.;D
Vest4
0.84
MVP
0.94
MPC
0.56
ClinPred
0.26
T
GERP RS
5.0
Varity_R
0.65
gMVP
0.59
Mutation Taster
=67/33
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: rs200670445; hg19: chr2-26700056; API