chr6-75835951-T-A

Position:

• chr6-75835951-T-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_004999.4(MYO6):​c.548T>A​(p.Val183Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MYO6 NM_004999.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.52

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.956

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO6	NM_004999.4	c.548T>A	p.Val183Asp	missense_variant	7/35	ENST00000369977.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO6	ENST00000369977.8	c.548T>A	p.Val183Asp	missense_variant	7/35	1	NM_004999.4	A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal dominant nonsyndromic hearing loss 22 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center of Genomic medicine, Geneva, University Hospital of Geneva

Jul 12, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.40
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.74	D;.;.;.;T;T
Eigen	Uncertain	0.67
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;.;D;D;D;D
M_CAP	Pathogenic	0.44	D
MetaRNN	Pathogenic	0.96	D;D;D;D;D;D
MetaSVM	Uncertain	0.62	D
MutationAssessor	Uncertain	2.6	.;M;M;M;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.80	D
PROVEAN	Pathogenic	-5.6	D;D;D;.;D;.
REVEL	Pathogenic	0.97
Sift	Uncertain	0.0010	D;D;D;.;D;.
Sift4G	Pathogenic	0.0010	D;D;D;D;D;D
Polyphen		1.0, 0.98	.;D;D;D;.;.
Vest4		0.90
MutPred		0.82		Gain of disorder (P = 0.0198);Gain of disorder (P = 0.0198);Gain of disorder (P = 0.0198);Gain of disorder (P = 0.0198);Gain of disorder (P = 0.0198);Gain of disorder (P = 0.0198);
MVP		0.97
MPC		0.42
ClinPred		1.0	D
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.87

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

Other links and lift over

dbSNP: rs1060499650; hg19: chr6-76545668;