rs397517940

Positions:

chr2-26475933-T-C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_194248.3(OTOF):c.2972A>G(p.Asn991Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,609,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.08

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 Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12352306).

BP6

Variant 2-26475933-T-C is Benign according to our data. Variant chr2-26475933-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 48211.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OTOF	NM_194248.3 linkuse as main transcript	c.2972A>G	p.Asn991Ser	missense_variant	24/47	ENST00000272371.7	NP_919224.1
OTOF	NM_194323.3 linkuse as main transcript	c.731A>G	p.Asn244Ser	missense_variant	7/29	ENST00000339598.8	NP_919304.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OTOF	ENST00000272371.7 linkuse as main transcript	c.2972A>G	p.Asn991Ser	missense_variant	24/47	1	NM_194248.3	ENSP00000272371	A1	Q9HC10-1
OTOF	ENST00000339598.8 linkuse as main transcript	c.731A>G	p.Asn244Ser	missense_variant	7/29	1	NM_194323.3	ENSP00000344521		Q9HC10-2

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151992

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000492

AC:

AN:

243862

Hom.:

AF XY:

0.0000378

AC XY:

AN XY:

132404

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000118

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000672

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000364

Gnomad OTH exome

AF:

0.000335

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1457800

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

724894

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000113

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000701

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151992

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74248

show subpopulations

Gnomad4 AFR

AF:

0.0000242

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000174

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000497

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 23, 2023

The c.2972A>G (p.N991S) alteration is located in exon 24 (coding exon 24) of the OTOF gene. This alteration results from a A to G substitution at nucleotide position 2972, causing the asparagine (N) at amino acid position 991 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jan 07, 2011

Asn991Ser in exon 24 of OTOF: This variant is not expected to have clinical sign ificance because computational analyses (PolyPhen, SIFT, AlignGVGD) do not sugge st a high likelihood of clinical significance primarily based upon a lack of con servation across species including mammals. Of note, chicken has a serine at thi s position despite high nearby amino acid conservation. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.057

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.059

.;.;.;T;.;.

Eigen

Benign

-0.24

Eigen_PC

Benign

0.000092

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;D;D;D;D;D

M_CAP

Benign

0.010

MetaRNN

Benign

0.12

T;T;T;T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.99

.;.;.;L;L;.

MutationTaster

Benign

0.96

D;D;D;D;D

PrimateAI

Uncertain

0.48

PROVEAN

Benign

0.26

N;N;.;N;N;.

REVEL

Benign

0.14

Sift

Benign

0.79

T;T;.;T;T;.

Sift4G

Benign

0.84

T;T;.;T;T;.

Polyphen

0.0

B;B;.;B;.;B

Vest4

0.15

MutPred

0.43

.;.;.;Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;

MVP

0.75

MPC

0.12

ClinPred

0.10

GERP RS

4.3

Varity_R

0.13

gMVP

0.051

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.

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