2-26473186-G-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_194248.3(OTOF):​c.3679C>A​(p.Arg1227=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000215 in 1,613,038 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

OTOF
NM_194248.3 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.755
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 2-26473186-G-T is Benign according to our data. Variant chr2-26473186-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 48221.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.755 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OTOFNM_194248.3 linkuse as main transcriptc.3679C>A p.Arg1227= synonymous_variant 29/47 ENST00000272371.7
OTOFNM_194323.3 linkuse as main transcriptc.1438C>A p.Arg480= synonymous_variant 12/29 ENST00000339598.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OTOFENST00000272371.7 linkuse as main transcriptc.3679C>A p.Arg1227= synonymous_variant 29/471 NM_194248.3 A1Q9HC10-1
OTOFENST00000339598.8 linkuse as main transcriptc.1438C>A p.Arg480= synonymous_variant 12/291 NM_194323.3 Q9HC10-2

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000279
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000276
AC:
69
AN:
249816
Hom.:
0
AF XY:
0.000288
AC XY:
39
AN XY:
135556
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.000579
Gnomad ASJ exome
AF:
0.000100
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000355
Gnomad OTH exome
AF:
0.000985
GnomAD4 exome
AF:
0.000208
AC:
304
AN:
1460738
Hom.:
0
Cov.:
33
AF XY:
0.000204
AC XY:
148
AN XY:
726698
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.000649
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000196
Gnomad4 OTH exome
AF:
0.000513
GnomAD4 genome
AF:
0.000282
AC:
43
AN:
152300
Hom.:
0
Cov.:
33
AF XY:
0.000295
AC XY:
22
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.000193
Gnomad4 AMR
AF:
0.000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000279
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000165
Hom.:
0
Bravo
AF:
0.000363
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000593

ClinVar

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

Submissions by phenotype

not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineNov 17, 2009p.Arg1227Arg in exon 29 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, has been identified in 37/126068 of European c hromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstit ute.org; dbSNP rs111033478). -
not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 28, 2021- -
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 27, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
8.4
DANN
Benign
0.62

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs111033478; hg19: chr2-26696054; API