6-75891256-CAAG-C

Position:

chr6-75891256-CAAG-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PM4_SupportingBP6BS1

The ENST00000369977.8(MYO6):c.2907_2909del(p.Glu970del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.000103 in 1,607,670 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000095 ( 0 hom. )

Consequence

MYO6
ENST00000369977.8 inframe_deletion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 3.79

Variant links:

Genes affected

MYO6 (HGNC:7605): (myosin VI) This gene encodes a reverse-direction motor protein that moves toward the minus end of actin filaments and plays a role in intracellular vesicle and organelle transport. The protein consists of a motor domain containing an ATP- and an actin-binding site and a globular tail which interacts with other proteins. This protein maintains the structural integrity of inner ear hair cells and mutations in this gene cause non-syndromic autosomal dominant and recessive hearing loss. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2014]

MYO6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in ENST00000369977.8. Strenght limited to Supporting due to length of the change: 1aa.

BP6

Variant 6-75891256-CAAG-C is Benign according to our data. Variant chr6-75891256-CAAG-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 179255.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=3, Likely_benign=2}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000171 (26/152026) while in subpopulation AMR AF= 0.00111 (17/15260). AF 95% confidence interval is 0.000709. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYO6	NM_004999.4 linkuse as main transcript	c.2907_2909del	p.Glu970del	inframe_deletion	27/35	ENST00000369977.8	NP_004990.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYO6	ENST00000369977.8 linkuse as main transcript	c.2907_2909del	p.Glu970del	inframe_deletion	27/35	1	NM_004999.4	ENSP00000358994	A1	Q9UM54-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

151908

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00112

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000202

AC:

AN:

247662

Hom.:

AF XY:

0.000217

AC XY:

AN XY:

133880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000817

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000110

Gnomad SAS exome

AF:

0.000165

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000117

Gnomad OTH exome

AF:

0.000329

GnomAD4 exome

AF:

0.0000955

AC:

139

AN:

1455644

Hom.:

AF XY:

0.0000953

AC XY:

AN XY:

724198

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.000832

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000304

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000569

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.000171

AC:

AN:

152026

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74304

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00111

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000232

Hom.:

Bravo

AF:

0.000246

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 13, 2018	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 16, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Dec 26, 2024	Reported in association with nonsyndromic SNHL with limited evidence for pathogenicity (PMID: 27068579); In-frame deletion of 1 amino acid in a non-repeat region; In silico analysis supports a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27068579) -

not specified

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital	Mar 19, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jun 29, 2021	The p.Glu970del variant in MYO6 is likely benign because it has been identified in 0.08% (29/35102) of Latino chromosomes by gnomAD (http://gnomad.broadinstitute.org). The variant has been reported in 1 European individual with sensorineural hearing loss (Sommen 2016 PMID:27068579), and our lab has seen this variant in 1 individual with hearing loss who carried additional pathogenic variants sufficient to explain their clinical presentation. This variant has also been reported in ClinVar (Variation ID 179255). This variant is a deletion of 1 amino acids at position 970 and is not predicted to alter the protein reading-frame. ACMG/AMP Criteria applied:PM4_Supporting, BS1, BP5. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

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