chr12-80302754-A-C

Variant names:

• chr12-80302754-A-C
• rs188793584
• NM_001378609.3:c.3184A>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001378609.3(OTOGL):​c.3184A>C​(p.Ile1062Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/18 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. I1062F) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: OTOGL NM_001378609.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.69
• Publications: 1 publications found

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]

OTOGL Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 84B

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
• 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: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.26435506).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OTOGL	NM_001378609.3	c.3184A>C	p.Ile1062Leu	missense_variant	Exon 28 of 59	ENST00000547103.7	NP_001365538.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OTOGL	ENST00000547103.7	c.3184A>C	p.Ile1062Leu	missense_variant	Exon 28 of 59	5	NM_001378609.3	ENSP00000447211.2
OTOGL	ENST00000646859.1	c.3049A>C	p.Ile1017Leu	missense_variant	Exon 32 of 63			ENSP00000496036.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.087	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	22
DANN	Uncertain	0.99
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.86	D;.;T
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.26	T;T;T
MetaSVM	Benign	-0.74	T
PhyloP100		3.7
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-1.6	.;.;N
REVEL	Benign	0.13
Sift	Benign	0.049	.;.;D
Sift4G	Uncertain	0.027	.;.;D
Vest4		0.31
MutPred		0.54		.;.;Loss of sheet (P = 0.0357);
MVP		0.18
MPC		0.035
ClinPred		0.66	D
GERP RS		4.5
gMVP		0.60
Mutation Taster		=74/26	polymorphism

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

Other links and lift over

dbSNP: rs188793584; hg19: chr12-80696534;