rs201326023

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_194323.3(OTOF):​c.3515G>T​(p.Arg1172Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 152,070 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. 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. R1172Q) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Consequence

OTOF
NM_194323.3 missense, splice_region

Scores

10
4
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.83
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 Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-26458218-C-T is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.905

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OTOFNM_194248.3 linkuse as main transcriptc.*20G>T splice_region_variant 47/47 ENST00000272371.7 NP_919224.1 Q9HC10-1
OTOFNM_194323.3 linkuse as main transcriptc.3515G>T p.Arg1172Leu missense_variant, splice_region_variant 29/29 ENST00000339598.8 NP_919304.1 Q9HC10-2
OTOFNM_194248.3 linkuse as main transcriptc.*20G>T 3_prime_UTR_variant 47/47 ENST00000272371.7 NP_919224.1 Q9HC10-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OTOFENST00000272371.7 linkuse as main transcriptc.*20G>T splice_region_variant 47/471 NM_194248.3 ENSP00000272371.2 Q9HC10-1
OTOFENST00000339598.8 linkuse as main transcriptc.3515G>T p.Arg1172Leu missense_variant, splice_region_variant 29/291 NM_194323.3 ENSP00000344521.3 Q9HC10-2
OTOFENST00000272371 linkuse as main transcriptc.*20G>T 3_prime_UTR_variant 47/471 NM_194248.3 ENSP00000272371.2 Q9HC10-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152070
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152070
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.29
CADD
Benign
17
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.65
D
MetaRNN
Pathogenic
0.90
D;D
MetaSVM
Uncertain
0.70
D
PROVEAN
Pathogenic
-6.7
D;D
REVEL
Pathogenic
0.92
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.81
MutPred
0.67
Loss of disorder (P = 0.0632);.;
MVP
0.96
ClinPred
0.98
D
GERP RS
4.8

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: rs201326023; hg19: chr2-26681086; API