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rs143890524

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_144672.4(OTOA):​c.2382G>A​(p.Gln794=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00658 in 1,567,196 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 0.016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0055 ( 0 hom. )

Consequence

OTOA
NM_144672.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.135
Variant links:
Genes affected
OTOA (HGNC:16378): (otoancorin) The protein encoded by this gene is specifically expressed in the inner ear, and is located at the interface between the apical surface of the inner ear sensory epithelia and their overlying acellular gels. It is prposed that this protein is involved in the attachment of the inner ear acellular gels to the apical surface of the underlying nonsensory cells. Mutations in this gene are associated with autosomal recessive deafness type 22 (DFNB22). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 16-21736341-G-A is Benign according to our data. Variant chr16-21736341-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 506082.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.135 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.17 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OTOANM_144672.4 linkuse as main transcriptc.2382G>A p.Gln794= synonymous_variant 22/29 ENST00000646100.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OTOAENST00000646100.2 linkuse as main transcriptc.2382G>A p.Gln794= synonymous_variant 22/29 NM_144672.4 P2Q7RTW8-5

Frequencies

GnomAD3 genomes
AF:
0.0164
AC:
2436
AN:
148178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00306
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0596
Gnomad ASJ
AF:
0.00554
Gnomad EAS
AF:
0.180
Gnomad SAS
AF:
0.0200
Gnomad FIN
AF:
0.0447
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00224
Gnomad OTH
AF:
0.0222
GnomAD3 exomes
AF:
0.00223
AC:
506
AN:
227182
Hom.:
0
AF XY:
0.00194
AC XY:
242
AN XY:
124670
show subpopulations
Gnomad AFR exome
AF:
0.000186
Gnomad AMR exome
AF:
0.00655
Gnomad ASJ exome
AF:
0.000101
Gnomad EAS exome
AF:
0.0260
Gnomad SAS exome
AF:
0.000372
Gnomad FIN exome
AF:
0.00230
Gnomad NFE exome
AF:
0.0000622
Gnomad OTH exome
AF:
0.00106
GnomAD4 exome
AF:
0.00554
AC:
7861
AN:
1418908
Hom.:
0
Cov.:
32
AF XY:
0.00524
AC XY:
3704
AN XY:
706408
show subpopulations
Gnomad4 AFR exome
AF:
0.000420
Gnomad4 AMR exome
AF:
0.0507
Gnomad4 ASJ exome
AF:
0.00187
Gnomad4 EAS exome
AF:
0.170
Gnomad4 SAS exome
AF:
0.00252
Gnomad4 FIN exome
AF:
0.0129
Gnomad4 NFE exome
AF:
0.000493
Gnomad4 OTH exome
AF:
0.00678
GnomAD4 genome
AF:
0.0165
AC:
2445
AN:
148288
Hom.:
0
Cov.:
32
AF XY:
0.0193
AC XY:
1395
AN XY:
72128
show subpopulations
Gnomad4 AFR
AF:
0.00305
Gnomad4 AMR
AF:
0.0597
Gnomad4 ASJ
AF:
0.00554
Gnomad4 EAS
AF:
0.180
Gnomad4 SAS
AF:
0.0198
Gnomad4 FIN
AF:
0.0447
Gnomad4 NFE
AF:
0.00224
Gnomad4 OTH
AF:
0.0259
Alfa
AF:
0.00717
Hom.:
0

ClinVar

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

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 23, 2017p.Gln794Gln in exon 21 of OTOA: 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 21.59% (1708/7910) o f East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac. broadinstitute.org; dbSNP rs143890524). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 04, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.093
DANN
Benign
0.35

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: rs143890524; hg19: chr16-21747662; COSMIC: COSV53748438; API