chr20-16763266-C-T

Position:

• chr20-16763266-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000490148.1(OTOR):​n.102-1056C>T variant causes a intron, non coding transcript change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.324 in 151,954 control chromosomes in the GnomAD database, including 8,465 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.32 (8465 hom., cov: 32)
• Consequence: OTOR ENST00000490148.1 intron, non_coding_transcript
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.131

Genes affected

OTOR (HGNC:8517): (otoraplin) This gene encodes a member of the melanoma-inhibiting activity gene family. The encoded protein is secreted via the Golgi apparatus and may function in cartilage development and maintenance. A frequent polymorphism in the translation start codon of this gene can abolish translation and may be associated with forms of deafness. [provided by RefSeq, Jul 2013]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.387 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OTOR	ENST00000490148.1	n.102-1056C>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes AF: 0.324 AC: 49133 AN: 151836 Hom.: 8455 Cov.: 32

Gnomad AFR AF: 0.234

Gnomad AMI AF: 0.379

Gnomad AMR AF: 0.264

Gnomad ASJ AF: 0.271

Gnomad EAS AF: 0.126

Gnomad SAS AF: 0.288

Gnomad FIN AF: 0.456

Gnomad MID AF: 0.266

Gnomad NFE AF: 0.391

Gnomad OTH AF: 0.302

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.324 AC: 49165 AN: 151954 Hom.: 8465 Cov.: 32 AF XY: 0.321 AC XY: 23869 AN XY: 74250

Gnomad4 AFR AF: 0.235

Gnomad4 AMR AF: 0.264

Gnomad4 ASJ AF: 0.271

Gnomad4 EAS AF: 0.127

Gnomad4 SAS AF: 0.288

Gnomad4 FIN AF: 0.456

Gnomad4 NFE AF: 0.391

Gnomad4 OTH AF: 0.300

Alfa AF: 0.366 Hom.: 21256

Bravo AF: 0.305

Asia WGS AF: 0.219 AC: 762 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	1.6
DANN	Benign	0.81

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs6080400; hg19: chr20-16743911;