11-17558565-C-T

Variant names:

• chr11-17558565-C-T
• rs876657550
• NM_001292063.2:c.1024C>T

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 2P and 11B. PM2 BP4_Moderate BP6_Very_Strong BP7

The NM_001292063.2(OTOG):​c.1024C>T​(p.Leu342Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000358 in 1,398,184 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: not found (cov: 33)
  • Exomes 𝑓: 0.0000036 (0 hom.)
• Consequence: OTOG NM_001292063.2 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.863
• Publications: 1 publications found

Genes affected

OTOG (HGNC:8516): (otogelin) The protein encoded by this gene is a component of the acellular membranes of the inner ear. Disruption of the orthologous mouse gene shows that it plays a role in auditory and vestibular functions. It is involved in fibrillar network organization, the anchoring of otoconial membranes and cupulae to the neuroepithelia, and likely in sound stimulation resistance. Mutations in this gene cause autosomal recessive nonsyndromic deafness, type 18B. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2014]

OTOG Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 18B

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine, Ambry Genetics
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.36).
• BP6: Variant 11-17558565-C-T is Benign according to our data. Variant chr11-17558565-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 227760.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.863 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001292063.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OTOG	NM_001292063.2	MANE Select	c.1024C>T	p.Leu342Leu	synonymous	Exon 10 of 56	NP_001278992.1
	OTOG	NM_001277269.2		c.1060C>T	p.Leu354Leu	synonymous	Exon 9 of 55	NP_001264198.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OTOG	ENST00000399397.6	TSL:5 MANE Select	c.1024C>T	p.Leu342Leu	synonymous	Exon 10 of 56	ENSP00000382329.2
	OTOG	ENST00000399391.7	TSL:5	c.1060C>T	p.Leu354Leu	synonymous	Exon 9 of 55	ENSP00000382323.2
	OTOG	ENST00000485669.1	TSL:4	n.508C>T		non_coding_transcript_exon	Exon 3 of 3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000358 AC: 5 AN: 1398184 Hom.: 0 Cov.: 33 AF XY: 0.00000580 AC XY: 4 AN XY: 689626

African (AFR) AF: 0.00 AC: 0 AN: 31598

American (AMR) AF: 0.00 AC: 0 AN: 35704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25182

East Asian (EAS) AF: 0.00 AC: 0 AN: 35738

South Asian (SAS) AF: 0.00 AC: 0 AN: 79236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48076

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5694

European-Non Finnish (NFE) AF: 0.00000463 AC: 5 AN: 1078966

Other (OTH) AF: 0.00 AC: 0 AN: 57990

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.36
CADD	Benign	3.7
DANN	Benign	0.65
PhyloP100		0.86

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs876657550; hg19: chr11-17580112;