chr16-21678953-C-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_ModerateBP6_Very_Strong

The NM_144672.4(OTOA):​c.120+10C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000493 in 1,613,574 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00043 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00050 ( 1 hom. )

Consequence

OTOA
NM_144672.4 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.512
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 -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 16-21678953-C-G is Benign according to our data. Variant chr16-21678953-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 164816.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-21678953-C-G is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OTOANM_144672.4 linkuse as main transcriptc.120+10C>G intron_variant ENST00000646100.2 NP_653273.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OTOAENST00000646100.2 linkuse as main transcriptc.120+10C>G intron_variant NM_144672.4 ENSP00000496564 P2Q7RTW8-5
OTOAENST00000388958.8 linkuse as main transcriptc.120+10C>G intron_variant 1 ENSP00000373610 P2Q7RTW8-5
OTOAENST00000286149.8 linkuse as main transcriptc.120+10C>G intron_variant 5 ENSP00000286149 A2Q7RTW8-1
OTOAENST00000647277.1 linkuse as main transcriptc.120+10C>G intron_variant, NMD_transcript_variant ENSP00000495594

Frequencies

GnomAD3 genomes
AF:
0.000427
AC:
65
AN:
152114
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000378
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000823
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000362
AC:
91
AN:
251356
Hom.:
0
AF XY:
0.000368
AC XY:
50
AN XY:
135856
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000371
Gnomad NFE exome
AF:
0.000668
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000500
AC:
730
AN:
1461460
Hom.:
1
Cov.:
33
AF XY:
0.000517
AC XY:
376
AN XY:
727048
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.000413
Gnomad4 NFE exome
AF:
0.000604
Gnomad4 OTH exome
AF:
0.000431
GnomAD4 genome
AF:
0.000427
AC:
65
AN:
152114
Hom.:
1
Cov.:
32
AF XY:
0.000458
AC XY:
34
AN XY:
74270
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000378
Gnomad4 NFE
AF:
0.000823
Gnomad4 OTH
AF:
0.000956
Alfa
AF:
0.000754
Hom.:
1
Bravo
AF:
0.000295

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
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineApr 30, 2012120+10C>G in Intron 02 of OTOA: This variant is not expected to have clinical si gnificance because it is not located within the conserved splice consensus seque nce and has been identified in 3/7020 European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/ EVS). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
9.9
DANN
Benign
0.70

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.

Other links and lift over

dbSNP: rs200215069; hg19: chr16-21690274; API