Genetic Variant NM_194248.3:c.5039G>T (chr2-26464028-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_194248.3(OTOF):c.5039G>T(p.Arg1680Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1680H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

OTOF
NM_194248.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.38

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 9
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

OTOF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.39335468).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_194248.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
OTOF	NM_194248.3	MANE Select	c.5039G>T	p.Arg1680Leu	missense	Exon 40 of 47	NP_919224.1
OTOF	NM_194323.3	MANE Plus Clinical	c.2738G>T	p.Arg913Leu	missense	Exon 23 of 29	NP_919304.1
OTOF	NM_001287489.2		c.5039G>T	p.Arg1680Leu	missense	Exon 40 of 46	NP_001274418.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
OTOF	ENST00000272371.7	TSL:1 MANE Select	c.5039G>T	p.Arg1680Leu	missense	Exon 40 of 47	ENSP00000272371.2
OTOF	ENST00000339598.8	TSL:1 MANE Plus Clinical	c.2738G>T	p.Arg913Leu	missense	Exon 23 of 29	ENSP00000344521.3
OTOF	ENST00000402415.8	TSL:1	c.2798G>T	p.Arg933Leu	missense	Exon 22 of 29	ENSP00000383906.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461392

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727006

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52954

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111992

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.0028

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.49

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.26

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.97

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.39

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.1

PhyloP100

1.4

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-3.9

REVEL

Benign

0.24

Sift

Benign

0.047

Sift4G

Uncertain

0.024

Polyphen

0.022

Vest4

0.49

MutPred

0.44

Loss of MoRF binding (P = 0.0659)

MVP

0.86

MPC

0.21

ClinPred

0.87

GERP RS

2.5

Varity_R

0.12

gMVP

0.60

Mutation Taster

=76/24

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over