2-26477243-G-A

Position:

chr2-26477243-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_ModerateBP6_Very_Strong

The NM_194248.3(OTOF):c.2452C>T(p.Arg818Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00014 in 1,609,026 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R818Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 1 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.41

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13580579).

BP6

Variant 2-26477243-G-A is Benign according to our data. Variant chr2-26477243-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 48198.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OTOF	NM_194248.3 linkuse as main transcript	c.2452C>T	p.Arg818Trp	missense_variant	21/47	ENST00000272371.7
OTOF	NM_194323.3 linkuse as main transcript	c.211C>T	p.Arg71Trp	missense_variant	4/29	ENST00000339598.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OTOF	ENST00000272371.7 linkuse as main transcript	c.2452C>T	p.Arg818Trp	missense_variant	21/47	1	NM_194248.3	A1	Q9HC10-1
OTOF	ENST00000339598.8 linkuse as main transcript	c.211C>T	p.Arg71Trp	missense_variant	4/29	1	NM_194323.3		Q9HC10-2

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000963

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000282

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000112

AC:

AN:

240906

Hom.:

AF XY:

0.000137

AC XY:

AN XY:

131124

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000590

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00105

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000505

Gnomad NFE exome

AF:

0.0000459

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000148

AC:

215

AN:

1456726

Hom.:

Cov.:

AF XY:

0.000160

AC XY:

116

AN XY:

724324

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000676

Gnomad4 ASJ exome

AF:

0.0000385

Gnomad4 EAS exome

AF:

0.00409

Gnomad4 SAS exome

AF:

0.0000351

Gnomad4 FIN exome

AF:

0.0000787

Gnomad4 NFE exome

AF:

0.0000333

Gnomad4 OTH exome

AF:

0.0000664

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000966

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000282

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.000141

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

May 14, 2012

Arg818Trp variant exon 21 of OTOF: This variant is not expected to have clinical significance because it has been identified in 0.7% (18/2584) of chromosomes fr om a Japanese population and the racially broad HapMap project (dbSNP rs2272070) . -

Autosomal recessive nonsyndromic hearing loss 9

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 25, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.11

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.51

.;.;.;D;.;.

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.95

D;D;D;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.14

T;T;T;T;T;T

MetaSVM

Uncertain

0.29

MutationAssessor

Benign

1.9

.;.;.;L;L;.

MutationTaster

Benign

0.94

D;D;D;D;D

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-5.0

D;D;D;D;D;.

REVEL

Uncertain

0.48

Sift

Uncertain

0.0010

D;D;D;D;D;.

Sift4G

Uncertain

0.0020

D;D;.;D;D;.

Polyphen

1.0

D;D;.;P;.;D

Vest4

0.48

MVP

0.93

MPC

0.34

ClinPred

0.22

GERP RS

1.5

Varity_R

0.48

gMVP

0.47

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over