chr2-26474015-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_194248.3(OTOF):​c.3384C>T​(p.Pro1128=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000165 in 1,612,998 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00083 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000095 ( 1 hom. )

Consequence

OTOF
NM_194248.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -6.63
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 2-26474015-G-A is Benign according to our data. Variant chr2-26474015-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 227755.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-6.64 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OTOFNM_194248.3 linkuse as main transcriptc.3384C>T p.Pro1128= synonymous_variant 27/47 ENST00000272371.7 NP_919224.1
OTOFNM_194323.3 linkuse as main transcriptc.1143C>T p.Pro381= synonymous_variant 10/29 ENST00000339598.8 NP_919304.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OTOFENST00000272371.7 linkuse as main transcriptc.3384C>T p.Pro1128= synonymous_variant 27/471 NM_194248.3 ENSP00000272371 A1Q9HC10-1
OTOFENST00000339598.8 linkuse as main transcriptc.1143C>T p.Pro381= synonymous_variant 10/291 NM_194323.3 ENSP00000344521 Q9HC10-2

Frequencies

GnomAD3 genomes
AF:
0.000835
AC:
127
AN:
152106
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00299
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:
0.00143
GnomAD3 exomes
AF:
0.000208
AC:
52
AN:
250560
Hom.:
0
AF XY:
0.000177
AC XY:
24
AN XY:
135746
show subpopulations
Gnomad AFR exome
AF:
0.00278
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000952
AC:
139
AN:
1460774
Hom.:
1
Cov.:
32
AF XY:
0.0000688
AC XY:
50
AN XY:
726716
show subpopulations
Gnomad4 AFR exome
AF:
0.00341
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.000834
AC:
127
AN:
152224
Hom.:
1
Cov.:
33
AF XY:
0.000914
AC XY:
68
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.00299
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000309
Hom.:
1
Bravo
AF:
0.000990

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 27, 2024- -
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 29, 2020- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 09, 2016p.Pro1128Pro in exon 27 of OTOF: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue, is not located with in the splice consensus sequence, and has been identified in 0.3% (30/10234) of African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broad institute.org; dbSNP rs145151677). -
OTOF-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 20, 2019This 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
BayesDel_noAF
Benign
-0.76
CADD
Benign
0.38
DANN
Benign
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs145151677; hg19: chr2-26696883; API