6-75886952-G-T

Position:

chr6-75886952-G-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_004999.4(MYO6):c.2616G>T(p.Lys872Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

MYO6
NM_004999.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.689

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.

BP4

Computational evidence support a benign effect (MetaRNN=0.05133).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO6	NM_004999.4 linkuse as main transcript	c.2616G>T	p.Lys872Asn	missense_variant	25/35	ENST00000369977.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO6	ENST00000369977.8 linkuse as main transcript	c.2616G>T	p.Lys872Asn	missense_variant	25/35	1	NM_004999.4	A1	Q9UM54-1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251230

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135814

show subpopulations

Gnomad AFR exome

AF:

0.000739

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461434

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727018

show subpopulations

Gnomad4 AFR exome

AF:

0.000359

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000125

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74432

show subpopulations

Gnomad4 AFR

AF:

0.000385

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000151

Hom.:

Bravo

AF:

0.000147

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Mar 31, 2017

The p.Lys872Asn variant in MYO6 has not been previously reported in individuals with hearing loss, but has been identified in 7/10324 African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs139 542573). Although this variant has been seen in the general population, its freq uency is not high enough to rule out a pathogenic role. Lysine (Lys) at position 872 is not conserved in mammals or evolutionarily distant species, raising the possibility that a change at this position may be tolerated. Additional computa tional prediction tools suggest that the p.Lys872Asn variant may not impact the protein, though this information is not predictive enough to rule out pathogenic ity. In summary, the clinical significance of the p.Lys872Asn variant is uncerta in. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Benign

0.34

DEOGEN2

Benign

0.11

T;.;.;.;T;T

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.89

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.94

D;.;D;D;D;D

M_CAP

Benign

0.045

MetaRNN

Benign

0.051

T;T;T;T;T;T

MetaSVM

Benign

-0.81

MutationAssessor

Benign

1.4

.;L;L;L;.;.

MutationTaster

Benign

0.87

D;D;D;D

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.74

N;N;N;.;N;.

REVEL

Benign

0.19

Sift

Benign

0.42

T;T;T;.;T;.

Sift4G

Benign

0.43

T;T;T;T;T;T

Polyphen

0.021, 0.14

.;B;B;B;.;.

Vest4

0.27

MutPred

0.59

Loss of ubiquitination at K872 (P = 0.0218);Loss of ubiquitination at K872 (P = 0.0218);Loss of ubiquitination at K872 (P = 0.0218);Loss of ubiquitination at K872 (P = 0.0218);Loss of ubiquitination at K872 (P = 0.0218);Loss of ubiquitination at K872 (P = 0.0218);

MVP

0.76

MPC

0.30

ClinPred

0.0077

GERP RS

0.78

gMVP

0.54

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

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