rs150867836

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP3BP6

The NM_194248.3(OTOF):​c.97C>T​(p.Arg33Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,554,406 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic 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. R33Q) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000019 ( 1 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

2
12
5

Clinical Significance

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

Conservation

PhyloP100: 1.68

Publications

2 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: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.834
BP6
Variant 2-26537757-G-A is Benign according to our data. Variant chr2-26537757-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 335463.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOFNM_194248.3 linkc.97C>T p.Arg33Trp missense_variant Exon 2 of 47 ENST00000272371.7 NP_919224.1 Q9HC10-1
OTOFNM_001287489.2 linkc.97C>T p.Arg33Trp missense_variant Exon 2 of 46 NP_001274418.1 Q9HC10-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOFENST00000272371.7 linkc.97C>T p.Arg33Trp missense_variant Exon 2 of 47 1 NM_194248.3 ENSP00000272371.2 Q9HC10-1
OTOFENST00000403946.7 linkc.97C>T p.Arg33Trp missense_variant Exon 2 of 46 5 ENSP00000385255.3 Q9HC10-5

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000186
AC:
3
AN:
161556
AF XY:
0.0000235
show subpopulations
Gnomad AFR exome
AF:
0.000110
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000315
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
26
AN:
1402240
Hom.:
1
Cov.:
30
AF XY:
0.0000145
AC XY:
10
AN XY:
691942
show subpopulations
African (AFR)
AF:
0.000126
AC:
4
AN:
31706
American (AMR)
AF:
0.00
AC:
0
AN:
36392
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25228
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36038
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79396
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49506
Middle Eastern (MID)
AF:
0.000351
AC:
2
AN:
5698
European-Non Finnish (NFE)
AF:
0.0000148
AC:
16
AN:
1080160
Other (OTH)
AF:
0.0000688
AC:
4
AN:
58116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000197
AC:
3
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000635
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000184
AC:
2

ClinVar

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

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 9 Uncertain:2
Mar 25, 2022
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

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 provided Benign:1
Feb 01, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.48
T;.
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Benign
0.73
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.055
D
MetaRNN
Pathogenic
0.83
D;D
MetaSVM
Uncertain
-0.020
T
MutationAssessor
Uncertain
2.4
M;M
PhyloP100
1.7
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.7
D;D
REVEL
Uncertain
0.55
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;.
Vest4
0.80
MVP
0.95
MPC
0.67
ClinPred
0.99
D
GERP RS
3.8
Varity_R
0.39
gMVP
0.61
Mutation Taster
=94/6
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: rs150867836; hg19: chr2-26760625; COSMIC: COSV107242065; API