chr11-17629271-G-C

Position:

• chr11-17629271-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001292063.2(OTOG):​c.6667G>C​(p.Val2223Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,242 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. 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. V2223M) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: OTOG NM_001292063.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.248

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.030625373).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OTOG	NM_001292063.2	c.6667G>C	p.Val2223Leu	missense_variant	40/56	ENST00000399397.6
OTOG	NM_001277269.2	c.6703G>C	p.Val2235Leu	missense_variant	39/55

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OTOG	ENST00000399397.6	c.6667G>C	p.Val2223Leu	missense_variant	40/56	5	NM_001292063.2	P2
OTOG	ENST00000399391.7	c.6703G>C	p.Val2235Leu	missense_variant	39/55	5		A2
OTOG	ENST00000342528.2	n.4005G>C		non_coding_transcript_exon_variant	16/22	2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152242 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152242 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74376

Gnomad4 AFR AF: 0.00

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: 0.0000147

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.065
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	1.8
DANN	Benign	0.47
DEOGEN2	Benign	0.015	T;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.29	N
LIST_S2	Benign	0.61	T;T
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.031	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-1.7	N;.
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.17	N;.
REVEL	Benign	0.079
Sift	Benign	0.82	T;.
Sift4G	Benign	0.56	T;T
Vest4		0.13
MutPred		0.56		Loss of catalytic residue at V2235 (P = 0.0269);.;
MVP		0.16
ClinPred		0.044	T
GERP RS		-0.18
Varity_R		0.035
gMVP		0.30

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs572886375; hg19: chr11-17650818;