rs183159689

Variant names:

• chr12-80271693-C-T
• rs183159689
• NM_001378609.3:c.2564C>T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_001378609.3(OTOGL):​c.2564C>T​(p.Pro855Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000614 in 1,613,152 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0010 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00057 (5 hom.)
• Consequence: OTOGL NM_001378609.3 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:2
• Conservation: PhyloP100: 2.73

Genes affected

OTOGL (HGNC:26901): (otogelin like) The protein encoded by this gene belongs to the otogelin family. This gene is expressed in the inner ear of vertebrates with the highest level of expression seen at the embryonic stage and lowest in adult. Knockdown studies in zebrafish suggest that this gene is essential for normal inner ear function. Mutations in this gene are associated with autosomal recessive deafness. [provided by RefSeq, Dec 2012]

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.01609394).
• BP6: Variant 12-80271693-C-T is Benign according to our data. Variant chr12-80271693-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 229115.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=1}.
• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00103 (157/152198) while in subpopulation AMR AF= 0.00288 (44/15280). AF 95% confidence interval is 0.0022. There are 0 homozygotes in gnomad4. There are 75 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OTOGL	NM_001378609.3	c.2564C>T	p.Pro855Leu	missense_variant	Exon 24 of 59	ENST00000547103.7	NP_001365538.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OTOGL	ENST00000547103.7	c.2564C>T	p.Pro855Leu	missense_variant	Exon 24 of 59	5	NM_001378609.3	ENSP00000447211.2
OTOGL	ENST00000646859.1	c.2564C>T	p.Pro855Leu	missense_variant	Exon 29 of 63			ENSP00000496036.1

Frequencies

GnomAD3 genomes AF: 0.00104 AC: 158 AN: 152080 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00138

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00295

Gnomad ASJ AF: 0.000576

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000691

Gnomad OTH AF: 0.00287

GnomAD3 exomes AF: 0.000752 AC: 185 AN: 246064 Hom.: 0 AF XY: 0.000696 AC XY: 93 AN XY: 133704

Gnomad AFR exome AF: 0.00142

Gnomad AMR exome AF: 0.00181

Gnomad ASJ exome AF: 0.000797

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000735

Gnomad OTH exome AF: 0.00200

GnomAD4 exome AF: 0.000570 AC: 833 AN: 1460954 Hom.: 5 Cov.: 32 AF XY: 0.000572 AC XY: 416 AN XY: 726770

Gnomad4 AFR exome AF: 0.00105

Gnomad4 AMR exome AF: 0.00200

Gnomad4 ASJ exome AF: 0.000651

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000375

Gnomad4 NFE exome AF: 0.000501

Gnomad4 OTH exome AF: 0.00166

GnomAD4 genome AF: 0.00103 AC: 157 AN: 152198 Hom.: 0 Cov.: 32 AF XY: 0.00101 AC XY: 75 AN XY: 74410

Gnomad4 AFR AF: 0.00137

Gnomad4 AMR AF: 0.00288

Gnomad4 ASJ AF: 0.000576

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000691

Gnomad4 OTH AF: 0.00284

Alfa AF: 0.000714 Hom.: 0

Bravo AF: 0.00117

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00102 AC: 4

ESP6500EA AF: 0.000363 AC: 3

ExAC AF: 0.000605 AC: 73

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:2

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1

Oct 18, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 846 of the OTOGL protein (p.Pro846Leu). This variant is present in population databases (rs183159689, gnomAD 0.2%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with OTOGL-related conditions. ClinVar contains an entry for this variant (Variation ID: 229115). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hearing impairment Uncertain:1

Apr 12, 2021

Department of Otolaryngology – Head & Neck Surgery, Cochlear Implant Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

BP4_Supporting -

not specified Benign:1

Jan 30, 2019

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Pro846Leu variant in OTOGL is classified as likely benign because it has been identified in 0.18% (65/35176) of Latino chromosomes by gnomAD (http://gnomad.broadinstitute.org), and computational prediction tools predict that this variant does not impact the protein. ACMG/AMP Criteria applied: BS1_Supporting, BP4. -

OTOGL-related disorder Benign:1

Sep 19, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.41	T
BayesDel_noAF	Benign	-0.38
CADD	Uncertain	25
DANN	Uncertain	1.0
Eigen	Uncertain	0.30
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.85	T;.;T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.016	T;T;T
MetaSVM	Benign	-1.2	T
PrimateAI	Uncertain	0.59	T
PROVEAN	Uncertain	-4.2	.;.;D
REVEL	Benign	0.15
Sift	Benign	0.35	.;.;T
Sift4G	Uncertain	0.040	.;.;D
Vest4		0.55
MVP		0.18
MPC		0.18
ClinPred		0.039	T
GERP RS		5.1
gMVP		0.49

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

Other links and lift over

dbSNP: rs183159689; hg19: chr12-80665473;