17-18121912-GTCACTCCCCCCAAGGATA-GTCACTCCCCCCAAGGATATCACTCCCCCCAAGGATA

Position:

chr17-18121912-GTCACTCCCCCCAAGGATA-GTCACTCCCCCCAAGGATATCACTCCCCCCAAGGATA

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM4BP6

The NM_016239.4(MYO15A):c.3130_3147dup(p.Ile1044_Asp1049dup) variant causes a inframe insertion change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0031 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00031 ( 2 hom. )

Failed GnomAD Quality Control

Consequence

MYO15A
NM_016239.4 inframe_insertion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.0420

Variant links:

Genes affected

MYO15A (HGNC:7594): (myosin XVA) This gene encodes an unconventional myosin. This protein differs from other myosins in that it has a long N-terminal extension preceding the conserved motor domain. Studies in mice suggest that this protein is necessary for actin organization in the hair cells of the cochlea. Mutations in this gene have been associated with profound, congenital, neurosensory, nonsyndromal deafness. This gene is located within the Smith-Magenis syndrome region on chromosome 17. Read-through transcripts containing an upstream gene and this gene have been identified, but they are not thought to encode a fusion protein. Several alternatively spliced transcript variants have been described, but their full length sequences have not been determined. [provided by RefSeq, Jul 2008]

MYO15A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in NM_016239.4.

BP6

Variant 17-18121912-G-GTCACTCCCCCCAAGGATA is Benign according to our data. Variant chr17-18121912-G-GTCACTCCCCCCAAGGATA is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 449948.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1, Benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO15A	NM_016239.4 linkuse as main transcript	c.3130_3147dup	p.Ile1044_Asp1049dup	inframe_insertion	2/66	ENST00000647165.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO15A	ENST00000647165.2 linkuse as main transcript	c.3130_3147dup	p.Ile1044_Asp1049dup	inframe_insertion	2/66		NM_016239.4	P1	Q9UKN7-1
MYO15A	ENST00000583079.1 linkuse as main transcript	n.2763_2780dup		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

464

AN:

151806

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.0109

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

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:

0.0000588

Gnomad OTH

AF:

0.00240

GnomAD3 exomes

AF:

0.000884

AC:

220

AN:

248864

Hom.:

AF XY:

0.000740

AC XY:

100

AN XY:

135184

show subpopulations

Gnomad AFR exome

AF:

0.0126

Gnomad AMR exome

AF:

0.000551

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.000496

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000309

AC:

452

AN:

1460720

Hom.:

Cov.:

AF XY:

0.000275

AC XY:

200

AN XY:

726686

show subpopulations

Gnomad4 AFR exome

AF:

0.0105

Gnomad4 AMR exome

AF:

0.000582

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000171

Gnomad4 OTH exome

AF:

0.000911

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00308

AC:

468

AN:

151924

Hom.:

Cov.:

AF XY:

0.00298

AC XY:

221

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.0109

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00237

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	May 18, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Sep 19, 2022	This variant, c.3130_3147dup, results in the insertion of 6 amino acid(s) of the MYO15A protein (p.Ile1044_Asp1049dup), but otherwise preserves the integrity of the reading frame. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with MYO15A-related conditions. ClinVar contains an entry for this variant (Variation ID: 449948). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. -

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	May 21, 2016	c.3130_3147dup in exon 2 of MYO15A: This variant is not expected to have clinica l significance because it is not located within the splice consensus sequence, r esults in an in-frame duplication of 6 amino acids, and has been identified in 1 .5% (145/9686) of African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs377177611, rs775957610). -
Likely benign, flagged submission	clinical testing	GeneDx	Mar 05, 2018	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over