chr11-77162903-C-A

Position:

• chr11-77162903-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The ENST00000409709.9(MYO7A):​c.1605C>A​(p.Asn535Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N535N) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: MYO7A ENST00000409709.9 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.833

Genes affected

MYO7A (HGNC:7606): (myosin VIIA) This gene is a member of the myosin gene family. Myosins are mechanochemical proteins characterized by the presence of a motor domain, an actin-binding domain, a neck domain that interacts with other proteins, and a tail domain that serves as an anchor. This gene encodes an unconventional myosin with a very short tail. Defects in this gene are associated with the mouse shaker-1 phenotype and the human Usher syndrome 1B which are characterized by deafness, reduced vestibular function, and (in human) retinal degeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.82

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYO7A	NM_000260.4	c.1605C>A	p.Asn535Lys	missense_variant	14/49	ENST00000409709.9	NP_000251.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYO7A	ENST00000409709.9	c.1605C>A	p.Asn535Lys	missense_variant	14/49	1	NM_000260.4	ENSP00000386331
MYO7A	ENST00000458637.6	c.1605C>A	p.Asn535Lys	missense_variant	14/49	1		ENSP00000392185	P1
MYO7A	ENST00000409619.6	c.1572C>A	p.Asn524Lys	missense_variant	15/50	1		ENSP00000386635

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1461694 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 727132

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000153

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Benign	-0.049	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	11
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.81	D;T;.;.
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.60
FATHMM_MKL	Benign	0.75	D
LIST_S2	Uncertain	0.95	D;D;D;D
M_CAP	Uncertain	0.087	D
MetaRNN	Pathogenic	0.82	D;D;D;D
MetaSVM	Benign	-0.41	T
MutationAssessor	Benign	1.9	L;.;L;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.68	T
PROVEAN	Uncertain	-4.3	D;.;D;D
REVEL	Uncertain	0.41
Sift	Benign	0.20	T;.;T;T
Sift4G	Benign	0.14	T;T;T;T
Polyphen		1.0	D;.;.;.
Vest4		0.86
MutPred		0.62		Gain of methylation at N535 (P = 0.012);Gain of methylation at N535 (P = 0.012);Gain of methylation at N535 (P = 0.012);.;
MVP		0.81
MPC		0.50
ClinPred		0.99	D
GERP RS		1.0
Varity_R		0.36
gMVP		0.77

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs111033228; hg19: chr11-76873949;