chr2-26477175-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_194248.3(OTOF):​c.2520C>T​(p.Asp840=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000646 in 1,609,588 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 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

OTOF
NM_194248.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.43
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 -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 2-26477175-G-A is Benign according to our data. Variant chr2-26477175-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 227752.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.43 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OTOFNM_194248.3 linkuse as main transcriptc.2520C>T p.Asp840= synonymous_variant 21/47 ENST00000272371.7
OTOFNM_194323.3 linkuse as main transcriptc.279C>T p.Asp93= synonymous_variant 4/29 ENST00000339598.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OTOFENST00000272371.7 linkuse as main transcriptc.2520C>T p.Asp840= synonymous_variant 21/471 NM_194248.3 A1Q9HC10-1
OTOFENST00000339598.8 linkuse as main transcriptc.279C>T p.Asp93= synonymous_variant 4/291 NM_194323.3 Q9HC10-2

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152142
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000904
AC:
22
AN:
243276
Hom.:
0
AF XY:
0.0000602
AC XY:
8
AN XY:
132906
show subpopulations
Gnomad AFR exome
AF:
0.0000655
Gnomad AMR exome
AF:
0.000117
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000551
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000146
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000679
AC:
99
AN:
1457446
Hom.:
0
Cov.:
33
AF XY:
0.0000607
AC XY:
44
AN XY:
725002
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.000118
Gnomad4 NFE exome
AF:
0.0000684
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152142
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000676
Hom.:
0
Bravo
AF:
0.0000491
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJul 30, 2015p.Asp840Asp in Exon 21 of OTOF: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 11/ 57550 of Europe an (Non-Finnish) chromosomes by the Exome Aggregation Consortium (ExAC, http://e xac.broadinstitute.org/; dbSNP rs147061068). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
0.88
DANN
Benign
0.46

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs147061068; hg19: chr2-26700043; API